예제 #1
0
파일: lod.cpp 프로젝트: AndrewJDR/bgfx
int _main_(int /*_argc*/, char** /*_argv*/)
{
	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_VSYNC;

	bgfx::init();
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
		, 0x303030ff
		, 1.0f
		, 0
		);

	bgfx::UniformHandle s_texColor   = bgfx::createUniform("s_texColor",   bgfx::UniformType::Int1);
	bgfx::UniformHandle s_texStipple = bgfx::createUniform("s_texStipple", bgfx::UniformType::Int1);
	bgfx::UniformHandle u_stipple    = bgfx::createUniform("u_stipple",    bgfx::UniformType::Vec4);

	bgfx::ProgramHandle program = loadProgram("vs_tree", "fs_tree");

	bgfx::TextureHandle textureLeafs = loadTexture("leafs1.dds");
	bgfx::TextureHandle textureBark  = loadTexture("bark1.dds");

	bgfx::TextureHandle textureStipple;

	const bgfx::Memory* stippleTex = bgfx::alloc(8*4);
	memset(stippleTex->data, 0, stippleTex->size);

	for (uint32_t ii = 0; ii < 32; ++ii)
	{
		stippleTex->data[knightTour[ii].m_y * 8 + knightTour[ii].m_x] = ii*4;
	}

	textureStipple = bgfx::createTexture2D(8, 4, 1
			, bgfx::TextureFormat::R8
			, BGFX_TEXTURE_MAG_POINT|BGFX_TEXTURE_MIN_POINT
			, stippleTex
			);

	Mesh* meshTop[3] =
	{
		meshLoad("meshes/tree1b_lod0_1.bin"),
		meshLoad("meshes/tree1b_lod1_1.bin"),
		meshLoad("meshes/tree1b_lod2_1.bin"),
	};

	Mesh* meshTrunk[3] =
	{
		meshLoad("meshes/tree1b_lod0_2.bin"),
		meshLoad("meshes/tree1b_lod1_2.bin"),
		meshLoad("meshes/tree1b_lod2_2.bin"),
	};

	// Imgui.
	imguiCreate();

	const uint64_t stateCommon = 0
		| BGFX_STATE_RGB_WRITE
		| BGFX_STATE_ALPHA_WRITE
		| BGFX_STATE_DEPTH_TEST_LESS
		| BGFX_STATE_CULL_CCW
		| BGFX_STATE_MSAA
		;

	const uint64_t stateTransparent = stateCommon
		| BGFX_STATE_BLEND_ALPHA
		;

	const uint64_t stateOpaque = stateCommon
		| BGFX_STATE_DEPTH_WRITE
		;

	int32_t scrollArea = 0;

	bool transitions = true;
	int transitionFrame = 0;
	int currLOD = 0;
	int targetLOD = 0;

	float at[3] = { 0.0f, 1.0f, 0.0f };
	float eye[3] = { 0.0f, 1.0f, -2.0f };

	entry::MouseState mouseState;
	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		imguiBeginFrame(mouseState.m_mx
			, mouseState.m_my
			, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT  : 0)
			| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
			, 0
			, width
			, height
			);

		imguiBeginScrollArea("Toggle transitions", width - width / 5 - 10, 10, width / 5, height / 6, &scrollArea);
		imguiSeparatorLine();

		if (imguiButton(transitions ? "ON" : "OFF") )
		{
			transitions = !transitions;
		}

		static float distance = 2.0f;
		imguiSlider("Distance", distance, 2.0f, 6.0f, .01f);

		imguiEndScrollArea();
		imguiEndFrame();

		// Set view 0 default viewport.
		bgfx::setViewRect(0, 0, 0, width, height);

		// This dummy draw call is here to make sure that view 0 is cleared
		// if no other draw calls are submitted to view 0.
		bgfx::submit(0);

		int64_t now = bx::getHPCounter();
		static int64_t last = now;
		const int64_t frameTime = now - last;
		last = now;
		const double freq = double(bx::getHPFrequency() );
		const double toMs = 1000.0/freq;

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/12-lod");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Mesh LOD transitions.");
		bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
		bgfx::dbgTextPrintf(0, 4, transitions ? 0x2f : 0x1f, transitions ? "Transitions on" : "Transitions off");

		eye[2] = -distance;

		// Set view and projection matrix for view 0.
		const bgfx::HMD* hmd = bgfx::getHMD();
		if (NULL != hmd && 0 != (hmd->flags & BGFX_HMD_RENDERING))
		{
			float view[16];
			bx::mtxQuatTranslationHMD(view, hmd->eye[0].rotation, eye);

			float proj[16];
			bx::mtxProj(proj, hmd->eye[0].fov, 0.1f, 100.0f);

			bgfx::setViewTransform(0, view, proj);

			// Set view 0 default viewport.
			//
			// Use HMD's width/height since HMD's internal frame buffer size
			// might be much larger than window size.
			bgfx::setViewRect(0, 0, 0, hmd->width, hmd->height);
		}
		else
		{
			float view[16];
			bx::mtxLookAt(view, eye, at);

			float proj[16];
			bx::mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);
			bgfx::setViewTransform(0, view, proj);

			// Set view 0 default viewport.
			bgfx::setViewRect(0, 0, 0, width, height);
		}

		float mtx[16];
		bx::mtxScale(mtx, 0.1f, 0.1f, 0.1f);

		float stipple[3];
		float stippleInv[3];

		const int currentLODframe = transitions ? 32-transitionFrame : 32;
		const int mainLOD = transitions ? currLOD : targetLOD;

		stipple[0] = 0.0f;
		stipple[1] = -1.0f;
		stipple[2] = (float(currentLODframe)*4.0f/255.0f) - (1.0f/255.0f);

		stippleInv[0] = (float(31)*4.0f/255.0f);
		stippleInv[1] = 1.0f;
		stippleInv[2] = (float(transitionFrame)*4.0f/255.0f) - (1.0f/255.0f);

		bgfx::setTexture(0, s_texColor, textureBark);
		bgfx::setTexture(1, s_texStipple, textureStipple);
		bgfx::setUniform(u_stipple, stipple);
		meshSubmit(meshTrunk[mainLOD], 0, program, mtx, stateOpaque);

		bgfx::setTexture(0, s_texColor, textureLeafs);
		bgfx::setTexture(1, s_texStipple, textureStipple);
		bgfx::setUniform(u_stipple, stipple);
		meshSubmit(meshTop[mainLOD], 0, program, mtx, stateTransparent);

		if (transitions
		&& (transitionFrame != 0) )
		{
			bgfx::setTexture(0, s_texColor, textureBark);
			bgfx::setTexture(1, s_texStipple, textureStipple);
			bgfx::setUniform(u_stipple, stippleInv);
			meshSubmit(meshTrunk[targetLOD], 0, program, mtx, stateOpaque);

			bgfx::setTexture(0, s_texColor, textureLeafs);
			bgfx::setTexture(1, s_texStipple, textureStipple);
			bgfx::setUniform(u_stipple, stippleInv);
			meshSubmit(meshTop[targetLOD], 0, program, mtx, stateTransparent);
		}

		int lod = 0;
		if (eye[2] < -2.5f)
		{
			lod = 1;
		}

		if (eye[2] < -5.0f)
		{
			lod = 2;
		}

		if (targetLOD!=lod)
		{
			if (targetLOD==currLOD)
			{
				targetLOD = lod;
			}
		}

		if (currLOD != targetLOD)
		{
			transitionFrame++;
		}

		if (transitionFrame>32)
		{
			currLOD = targetLOD;
			transitionFrame = 0;
		}

		// Advance to next frame. Rendering thread will be kicked to
		// process submitted rendering primitives.
		bgfx::frame();
	}

	imguiDestroy();

	for (uint32_t ii = 0; ii < 3; ++ii)
	{
		meshUnload(meshTop[ii]);
		meshUnload(meshTrunk[ii]);
	}

	// Cleanup.
	bgfx::destroyProgram(program);

	bgfx::destroyUniform(s_texColor);
	bgfx::destroyUniform(s_texStipple);
	bgfx::destroyUniform(u_stipple);

	bgfx::destroyTexture(textureStipple);
	bgfx::destroyTexture(textureLeafs);
	bgfx::destroyTexture(textureBark);

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
예제 #2
0
파일: hdr.cpp 프로젝트: emutanen/bgfx
int _main_(int /*_argc*/, char** /*_argv*/)
{
	PosColorTexCoord0Vertex::init();

	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_VSYNC;

	bgfx::init();
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT
		, 0x303030ff
		, 1.0f
		, 0
		);

	bgfx::TextureHandle uffizi = loadTexture("uffizi.dds", BGFX_TEXTURE_U_CLAMP|BGFX_TEXTURE_V_CLAMP|BGFX_TEXTURE_W_CLAMP);

	bgfx::ProgramHandle skyProgram     = loadProgram("vs_hdr_skybox",  "fs_hdr_skybox");
	bgfx::ProgramHandle lumProgram     = loadProgram("vs_hdr_lum",     "fs_hdr_lum");
	bgfx::ProgramHandle lumAvgProgram  = loadProgram("vs_hdr_lumavg",  "fs_hdr_lumavg");
	bgfx::ProgramHandle blurProgram    = loadProgram("vs_hdr_blur",    "fs_hdr_blur");
	bgfx::ProgramHandle brightProgram  = loadProgram("vs_hdr_bright",  "fs_hdr_bright");
	bgfx::ProgramHandle meshProgram    = loadProgram("vs_hdr_mesh",    "fs_hdr_mesh");
	bgfx::ProgramHandle tonemapProgram = loadProgram("vs_hdr_tonemap", "fs_hdr_tonemap");

	bgfx::UniformHandle u_time      = bgfx::createUniform("u_time",     bgfx::UniformType::Uniform1f);
	bgfx::UniformHandle u_texCube   = bgfx::createUniform("u_texCube",  bgfx::UniformType::Uniform1i);
	bgfx::UniformHandle u_texColor  = bgfx::createUniform("u_texColor", bgfx::UniformType::Uniform1i);
	bgfx::UniformHandle u_texLum    = bgfx::createUniform("u_texLum",   bgfx::UniformType::Uniform1i);
	bgfx::UniformHandle u_texBlur   = bgfx::createUniform("u_texBlur",  bgfx::UniformType::Uniform1i);
	bgfx::UniformHandle u_mtx       = bgfx::createUniform("u_mtx",      bgfx::UniformType::Uniform4x4fv);
	bgfx::UniformHandle u_tonemap   = bgfx::createUniform("u_tonemap",  bgfx::UniformType::Uniform4fv);
	bgfx::UniformHandle u_offset    = bgfx::createUniform("u_offset",   bgfx::UniformType::Uniform4fv, 16);

	Mesh* mesh = meshLoad("meshes/bunny.bin");

	bgfx::FrameBufferHandle fbh;
	bgfx::TextureHandle fbtextures[] =
	{
		bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::BGRA8, BGFX_TEXTURE_RT|BGFX_TEXTURE_U_CLAMP|BGFX_TEXTURE_V_CLAMP),
		bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::D16, BGFX_TEXTURE_RT_BUFFER_ONLY),
	};
	fbh = bgfx::createFrameBuffer(BX_COUNTOF(fbtextures), fbtextures, true);

	bgfx::FrameBufferHandle lum[5];
	lum[0] = bgfx::createFrameBuffer(128, 128, bgfx::TextureFormat::BGRA8);
	lum[1] = bgfx::createFrameBuffer( 64,  64, bgfx::TextureFormat::BGRA8);
	lum[2] = bgfx::createFrameBuffer( 16,  16, bgfx::TextureFormat::BGRA8);
	lum[3] = bgfx::createFrameBuffer(  4,   4, bgfx::TextureFormat::BGRA8);
	lum[4] = bgfx::createFrameBuffer(  1,   1, bgfx::TextureFormat::BGRA8);

	bgfx::FrameBufferHandle bright;
	bright = bgfx::createFrameBuffer(width/2, height/2, bgfx::TextureFormat::BGRA8);

	bgfx::FrameBufferHandle blur;
	blur = bgfx::createFrameBuffer(width/8, height/8, bgfx::TextureFormat::BGRA8);

	void* data = load("font/droidsans.ttf");
	imguiCreate(data);
	free(data);

	const bgfx::RendererType::Enum renderer = bgfx::getRendererType();
	s_texelHalf = bgfx::RendererType::Direct3D9 == renderer ? 0.5f : 0.0f;
	s_originBottomLeft = bgfx::RendererType::OpenGL == renderer || bgfx::RendererType::OpenGLES == renderer;

	uint32_t oldWidth  = 0;
	uint32_t oldHeight = 0;
	uint32_t oldReset  = reset;
 
	float speed      = 0.37f;
	float middleGray = 0.18f;
	float white      = 1.1f;
	float treshold   = 1.5f;

	int32_t scrollArea = 0;

	float time = 0.0f;

	entry::MouseState mouseState;
	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		if (oldWidth  != width
		||  oldHeight != height
		||  oldReset  != reset)
		{
			// Recreate variable size render targets when resolution changes.
			oldWidth  = width;
			oldHeight = height;
			oldReset  = reset;

			uint32_t msaa = (reset&BGFX_RESET_MSAA_MASK)>>BGFX_RESET_MSAA_SHIFT;

			bgfx::destroyFrameBuffer(fbh);
			bgfx::destroyFrameBuffer(bright);
			bgfx::destroyFrameBuffer(blur);

			fbtextures[0] = bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::BGRA8, ( (msaa+1)<<BGFX_TEXTURE_RT_MSAA_SHIFT)|BGFX_TEXTURE_U_CLAMP|BGFX_TEXTURE_V_CLAMP);
			fbtextures[1] = bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::D16, BGFX_TEXTURE_RT_BUFFER_ONLY|( (msaa+1)<<BGFX_TEXTURE_RT_MSAA_SHIFT) );
			fbh = bgfx::createFrameBuffer(BX_COUNTOF(fbtextures), fbtextures, true);

			bright = bgfx::createFrameBuffer(width/2, height/2, bgfx::TextureFormat::BGRA8);
			blur   = bgfx::createFrameBuffer(width/8, height/8, bgfx::TextureFormat::BGRA8);
		}

		imguiBeginFrame(mouseState.m_mx
			, mouseState.m_my
			, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT  : 0)
			| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
			, 0
			, width
			, height
			);

		imguiBeginScrollArea("Settings", width - width / 5 - 10, 10, width / 5, height / 3, &scrollArea);
		imguiSeparatorLine();

		imguiSlider("Speed", speed, 0.0f, 1.0f, 0.01f);
		imguiSeparator();

		imguiSlider("Middle gray", middleGray, 0.1f, 1.0f, 0.01f);
		imguiSlider("White point", white, 0.1f, 2.0f, 0.01f);
		imguiSlider("Treshold", treshold, 0.1f, 2.0f, 0.01f);

		imguiEndScrollArea();
		imguiEndFrame();

		// This dummy draw call is here to make sure that view 0 is cleared
		// if no other draw calls are submitted to view 0.
		bgfx::submit(0);

		int64_t now = bx::getHPCounter();
		static int64_t last = now;
		const int64_t frameTime = now - last;
		last = now;
		const double freq = double(bx::getHPFrequency() );
		const double toMs = 1000.0/freq;

		time += (float)(frameTime*speed/freq);

		bgfx::setUniform(u_time, &time);

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/09-hdr");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Using multiple views and render targets.");
		bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);

		// Set views.
		for (uint32_t ii = 0; ii < 6; ++ii)
		{
			bgfx::setViewRect(ii, 0, 0, width, height);
		}
		bgfx::setViewFrameBuffer(0, fbh);
		bgfx::setViewFrameBuffer(1, fbh);

		bgfx::setViewRect(2, 0, 0, 128, 128);
		bgfx::setViewFrameBuffer(2, lum[0]);

		bgfx::setViewRect(3, 0, 0, 64, 64);
		bgfx::setViewFrameBuffer(3, lum[1]);

		bgfx::setViewRect(4, 0, 0, 16, 16);
		bgfx::setViewFrameBuffer(4, lum[2]);

		bgfx::setViewRect(5, 0, 0, 4, 4);
		bgfx::setViewFrameBuffer(5, lum[3]);

		bgfx::setViewRect(6, 0, 0, 1, 1);
		bgfx::setViewFrameBuffer(6, lum[4]);

		bgfx::setViewRect(7, 0, 0, width/2, height/2);
		bgfx::setViewFrameBuffer(7, bright);

		bgfx::setViewRect(8, 0, 0, width/8, height/8);
		bgfx::setViewFrameBuffer(8, blur);

		bgfx::setViewRect(9, 0, 0, width, height);

		float view[16];
		float proj[16];

		bx::mtxIdentity(view);
		bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);

		// Set view and projection matrix for view 0.
		for (uint32_t ii = 0; ii < 10; ++ii)
		{
			bgfx::setViewTransform(ii, view, proj);
		}

		float at[3] = { 0.0f, 1.0f, 0.0f };
		float eye[3] = { 0.0f, 1.0f, -2.5f };

		float mtx[16];
		bx::mtxRotateXY(mtx
			, 0.0f
			, time
			); 

		float temp[4];
		bx::vec3MulMtx(temp, eye, mtx);

		bx::mtxLookAt(view, temp, at);
		bx::mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);

		// Set view and projection matrix for view 1.
		bgfx::setViewTransform(1, view, proj);

		bgfx::setUniform(u_mtx, mtx);

		// Render skybox into view 0.
		bgfx::setTexture(0, u_texCube, uffizi);
		bgfx::setProgram(skyProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width, (float)height, true);
		bgfx::submit(0);

		// Render mesh into view 1
		bgfx::setTexture(0, u_texCube, uffizi);
		meshSubmit(mesh, 1, meshProgram, NULL);

		// Calculate luminance.
		setOffsets2x2Lum(u_offset, 128, 128);
		bgfx::setTexture(0, u_texColor, fbtextures[0]);
		bgfx::setProgram(lumProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(128.0f, 128.0f, s_originBottomLeft);
		bgfx::submit(2);

		// Downscale luminance 0.
		setOffsets4x4Lum(u_offset, 128, 128);
		bgfx::setTexture(0, u_texColor, lum[0]);
		bgfx::setProgram(lumAvgProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(64.0f, 64.0f, s_originBottomLeft);
		bgfx::submit(3);

		// Downscale luminance 1.
		setOffsets4x4Lum(u_offset, 64, 64);
		bgfx::setTexture(0, u_texColor, lum[1]);
		bgfx::setProgram(lumAvgProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(16.0f, 16.0f, s_originBottomLeft);
		bgfx::submit(4);

		// Downscale luminance 2.
		setOffsets4x4Lum(u_offset, 16, 16);
		bgfx::setTexture(0, u_texColor, lum[2]);
		bgfx::setProgram(lumAvgProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(4.0f, 4.0f, s_originBottomLeft);
		bgfx::submit(5);

		// Downscale luminance 3.
		setOffsets4x4Lum(u_offset, 4, 4);
		bgfx::setTexture(0, u_texColor, lum[3]);
		bgfx::setProgram(lumAvgProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(1.0f, 1.0f, s_originBottomLeft);
		bgfx::submit(6);

		float tonemap[4] = { middleGray, square(white), treshold, 0.0f };
		bgfx::setUniform(u_tonemap, tonemap);

		// Bright pass treshold is tonemap[3].
		setOffsets4x4Lum(u_offset, width/2, height/2);
		bgfx::setTexture(0, u_texColor, fbtextures[0]);
		bgfx::setTexture(1, u_texLum, lum[4]);
		bgfx::setProgram(brightProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width/2.0f, (float)height/2.0f, s_originBottomLeft);
		bgfx::submit(7);

		// Blur bright pass vertically.
		bgfx::setTexture(0, u_texColor, bright);
		bgfx::setProgram(blurProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width/8.0f, (float)height/8.0f, s_originBottomLeft);
		bgfx::submit(8);

		// Blur bright pass horizontally, do tonemaping and combine.
		bgfx::setTexture(0, u_texColor, fbtextures[0]);
		bgfx::setTexture(1, u_texLum, lum[4]);
		bgfx::setTexture(2, u_texBlur, blur);
		bgfx::setProgram(tonemapProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width, (float)height, s_originBottomLeft);
		bgfx::submit(9);

		// Advance to next frame. Rendering thread will be kicked to 
		// process submitted rendering primitives.
		bgfx::frame();
	}
예제 #3
0
파일: main.cpp 프로젝트: find/bgfx
int _main_(int, char**)
{
    uint32_t width = 800, height = 600;
    uint32_t debug = BGFX_DEBUG_TEXT | BGFX_DEBUG_STATS;
    uint32_t reset = BGFX_RESET_VSYNC | BGFX_RESET_MSAA_X8;
    bool showStats = true;

    bgfx::init();
    bgfx::reset(width, height, reset);

    bgfx::setDebug(debug);

    size_t sz = 0;
    void* fontdata = nullptr;
    if(loadfile("assets/font/droidsans.ttf", fontdata, sz))
        imguiCreate(fontdata, sz);
    else
        imguiCreate();
    free(fontdata);

    entry::MouseState mouseState;
    float rgb[3] = {0.3f, 0.3f, 0.3f};
    bool colorwheelActivated = false;
    int32_t scrollArea = 0;
    while(!entry::processEvents(width, height, debug, reset, &mouseState)) {
        auto encodeColor = [&rgb]()->uint32_t{
            return uint32_t(rgb[0]*255)<<24|uint32_t(rgb[1]*255)<<16|uint32_t(rgb[2]*255)<<8|0xff;
        };
        bgfx::setViewClear(0,
                BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH,
                encodeColor(), 1.0f, 0);

        bgfx::setViewRect(0, 0, 0, width, height);
        
        bgfx::submit(0, BGFX_INVALID_HANDLE);
        bgfx::dbgTextPrintf(0, 1, 0x4f, "hello world");
        bgfx::dbgTextPrintf(0, 2, 0x5f, "simple bgfx program");

        imguiBeginFrame(mouseState.m_mx, mouseState.m_my,
              (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT  : 0)
            | (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
            , 0
            , width
            , height);
        imguiBeginScrollArea("Test", width-350, 50, 330, 500, &scrollArea);
        imguiSeparatorLine();
        imguiLabel("foobar");
        if(imguiButton("say hi"))
            fprintf(stdout, "hi there\n");
        imguiBool("show stats", showStats);
        uint32_t newDebug = BGFX_DEBUG_TEXT | (showStats ? BGFX_DEBUG_STATS : 0);
        if(newDebug != debug) {
            debug = newDebug;
            bgfx::setDebug(debug);
        }
        imguiColorWheel("bg color", rgb, colorwheelActivated);
        ImGui::ColorEdit3("bg color", rgb);
        imguiSeparatorLine();
        if(imguiButton("quit"))
            break;
        imguiEndScrollArea();
        imguiEndFrame();

        bgfx::frame();
    }

    imguiDestroy();
    bgfx::shutdown();
    return 0;
}
예제 #4
0
파일: Gui.cpp 프로젝트: 299299/NagaGame
void Gui::init()
{
    imguiCreate();
}
예제 #5
0
int _main_(int _argc, char** _argv)
{
	bx::CommandLine cmdLine(_argc, _argv);

	if (cmdLine.hasArg('h', "help") )
	{
		help();
		return EXIT_FAILURE;
	}
	else if (cmdLine.hasArg("associate") )
	{
		associate();
		return EXIT_FAILURE;
	}

	uint32_t width  = 1280;
	uint32_t height = 720;
	uint32_t debug  = BGFX_DEBUG_TEXT;
	uint32_t reset  = BGFX_RESET_VSYNC;

	inputAddBindings(s_bindingName[Binding::App],  s_binding[Binding::App]);
	inputAddBindings(s_bindingName[Binding::View], s_binding[Binding::View]);

	View view;
	cmdAdd("view", cmdView, &view);

	bgfx::init();
	bgfx::reset(width, height, reset);

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
		, 0x101010ff
		, 1.0f
		, 0
		);

	imguiCreate();

	PosUvColorVertex::init();

	bgfx::RendererType::Enum type = bgfx::getRendererType();

	bgfx::ShaderHandle vsTexture      = bgfx::createEmbeddedShader(s_embeddedShaders, type, "vs_texture");
	bgfx::ShaderHandle fsTexture      = bgfx::createEmbeddedShader(s_embeddedShaders, type, "fs_texture");
	bgfx::ShaderHandle fsTextureArray = bgfx::createEmbeddedShader(s_embeddedShaders, type, "fs_texture_array");

	bgfx::ProgramHandle textureProgram = bgfx::createProgram(
			  vsTexture
			, fsTexture
			, true
			);

	bgfx::ProgramHandle textureArrayProgram = bgfx::createProgram(
			  vsTexture
			, bgfx::isValid(fsTextureArray)
			? fsTextureArray
			: fsTexture
			, true
			);

	bgfx::ProgramHandle textureCubeProgram = bgfx::createProgram(
			  bgfx::createEmbeddedShader(s_embeddedShaders, type, "vs_texture_cube")
			, bgfx::createEmbeddedShader(s_embeddedShaders, type, "fs_texture_cube")
			, true
			);

	bgfx::ProgramHandle textureSDFProgram = bgfx::createProgram(
			  vsTexture
			, bgfx::createEmbeddedShader(s_embeddedShaders, type, "fs_texture_sdf")
			, true);

	bgfx::UniformHandle s_texColor = bgfx::createUniform("s_texColor", bgfx::UniformType::Int1);
	bgfx::UniformHandle u_mtx      = bgfx::createUniform("u_mtx",      bgfx::UniformType::Mat4);
	bgfx::UniformHandle u_params   = bgfx::createUniform("u_params",   bgfx::UniformType::Vec4);

	float speed = 0.37f;
	float time  = 0.0f;

	Interpolator mip(0.0f);
	Interpolator layer(0.0f);
	Interpolator zoom(1.0f);
	Interpolator scale(1.0f);

	const char* filePath = _argc < 2 ? "" : _argv[1];
	bool directory = false;

	bx::FileInfo fi;
	bx::stat(filePath, fi);
	directory = bx::FileInfo::Directory == fi.m_type;

	std::string path = filePath;
	if (!directory)
	{
		const char* fileName = directory ? filePath : bx::baseName(filePath);
		path.assign(filePath, fileName);
		view.updateFileList(path.c_str(), fileName);
	}
	else
	{
		view.updateFileList(path.c_str() );
	}

	int exitcode = EXIT_SUCCESS;
	bgfx::TextureHandle texture = BGFX_INVALID_HANDLE;

	if (view.m_fileList.empty() )
	{
		exitcode = EXIT_FAILURE;
		if (2 > _argc)
		{
			help("File path is not specified.");
		}
		else
		{
			fprintf(stderr, "Unable to load '%s' texture.\n", filePath);
		}
	}
	else
	{
		uint32_t fileIndex = 0;

		entry::MouseState mouseState;
		while (!entry::processEvents(width, height, debug, reset, &mouseState) )
		{
			imguiBeginFrame(mouseState.m_mx
				, mouseState.m_my
				, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT   : 0)
				| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT  : 0)
				| (mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
				, mouseState.m_mz
				, width
				, height
				);

			static bool help = false;

			if (help == false
			&&  help != view.m_help)
			{
				ImGui::OpenPopup("Help");
			}

			if (ImGui::BeginPopupModal("Help", NULL, ImGuiWindowFlags_AlwaysAutoResize) )
			{
				ImGui::SetWindowFontScale(1.0f);

				ImGui::Text(
					"texturev, bgfx texture viewer tool " ICON_KI_WRENCH "\n"
					"Copyright 2011-2017 Branimir Karadzic. All rights reserved.\n"
					"License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause\n"
					);
				ImGui::Separator();
				ImGui::NextLine();

				ImGui::Text("Key bindings:\n\n");

				ImGui::PushFont(ImGui::Font::Mono);
				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "ESC");   ImGui::SameLine(64); ImGui::Text("Exit.");
				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "h");     ImGui::SameLine(64); ImGui::Text("Toggle help screen.");
				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "f");     ImGui::SameLine(64); ImGui::Text("Toggle full-screen.");
				ImGui::NextLine();

				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "-");     ImGui::SameLine(64); ImGui::Text("Zoom out.");
				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "=");     ImGui::SameLine(64); ImGui::Text("Zoom in.");
				ImGui::NextLine();

				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), ",");     ImGui::SameLine(64); ImGui::Text("MIP level up.");
				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), ".");     ImGui::SameLine(64); ImGui::Text("MIP level down.");
				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "/");     ImGui::SameLine(64); ImGui::Text("Toggle linear/point texture sampling.");
				ImGui::NextLine();

				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "left");  ImGui::SameLine(64); ImGui::Text("Previous layer in texture array.");
				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "right"); ImGui::SameLine(64); ImGui::Text("Next layer in texture array.");
				ImGui::NextLine();

				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "up");    ImGui::SameLine(64); ImGui::Text("Previous texture.");
				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "down");  ImGui::SameLine(64); ImGui::Text("Next texture.");
				ImGui::NextLine();

				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "r/g/b"); ImGui::SameLine(64); ImGui::Text("Toggle R, G, or B color channel.");
				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "a");     ImGui::SameLine(64); ImGui::Text("Toggle alpha blending.");
				ImGui::NextLine();

				ImGui::TextColored(ImVec4(1.0f, 1.0f, 0.0f, 1.0f), "s");     ImGui::SameLine(64); ImGui::Text("Toggle Multi-channel SDF rendering");

				ImGui::PopFont();

				ImGui::NextLine();

				ImGui::Dummy(ImVec2(0.0f, 0.0f) );
				ImGui::SameLine(ImGui::GetWindowWidth() - 136.0f);
				if (ImGui::Button("Close", ImVec2(128.0f, 0.0f) )
				|| !view.m_help)
				{
					view.m_help = false;
					ImGui::CloseCurrentPopup();
				}

				ImGui::EndPopup();
			}

			help = view.m_help;

			imguiEndFrame();

			if (!bgfx::isValid(texture)
			||  view.m_fileIndex != fileIndex)
			{
				if (bgfx::isValid(texture) )
				{
					bgfx::destroyTexture(texture);
				}

				fileIndex = view.m_fileIndex;

				filePath = view.m_fileList[view.m_fileIndex].c_str();

				texture = loadTexture(filePath
						, 0
						| BGFX_TEXTURE_U_CLAMP
						| BGFX_TEXTURE_V_CLAMP
						| BGFX_TEXTURE_W_CLAMP
						, 0
						, &view.m_info
						);

				std::string title;
				bx::stringPrintf(title, "%s (%d x %d%s, %s)"
					, filePath
					, view.m_info.width
					, view.m_info.height
					, view.m_info.cubeMap ? " CubeMap" : ""
					, bgfx::getName(view.m_info.format)
					);
				entry::WindowHandle handle = { 0 };
				entry::setWindowTitle(handle, title.c_str() );
			}

			int64_t now = bx::getHPCounter();
			static int64_t last = now;
			const int64_t frameTime = now - last;
			last = now;
			const double freq = double(bx::getHPFrequency() );

			time += (float)(frameTime*speed/freq);

			float ortho[16];
			bx::mtxOrtho(ortho, 0.0f, (float)width, (float)height, 0.0f, 0.0f, 1000.0f);
			bgfx::setViewTransform(0, NULL, ortho);
			bgfx::setViewRect(0, 0, 0, width, height);
			bgfx::touch(0);

			bgfx::dbgTextClear();

			scale.set(
				  bx::fmin( float(width) / float(view.m_info.width)
				, float(height) / float(view.m_info.height)
				)
				, 0.1f
				);
			zoom.set(view.m_zoom, 0.25);

			float ss = scale.getValue() * zoom.getValue();

			screenQuad( int(width  - view.m_info.width  * ss)/2
				, int(height - view.m_info.height * ss)/2
				, int(view.m_info.width  * ss)
				, int(view.m_info.height * ss)
				, view.m_abgr
				);

			float mtx[16];
			bx::mtxRotateXY(mtx, 0.0f, time);
			bgfx::setUniform(u_mtx, mtx);

			mip.set(float(view.m_mip), 0.5f);
			layer.set(float(view.m_layer), 0.25f);

			float params[4] = { mip.getValue(), layer.getValue(), 0.0f, 0.0f };
			bgfx::setUniform(u_params, params);

			bgfx::setTexture(0
				, s_texColor
				, texture
				, view.m_filter
				? BGFX_TEXTURE_NONE
				: 0
				| BGFX_TEXTURE_MIN_POINT
				| BGFX_TEXTURE_MIP_POINT
				| BGFX_TEXTURE_MAG_POINT
				);
			bgfx::setState(0
				| BGFX_STATE_RGB_WRITE
				| BGFX_STATE_ALPHA_WRITE
				| (view.m_alpha ? BGFX_STATE_BLEND_ALPHA : BGFX_STATE_NONE)
				);
			bgfx::submit(0
					,     view.m_info.cubeMap   ? textureCubeProgram
					: 1 < view.m_info.numLayers ? textureArrayProgram
					:     view.m_sdf            ? textureSDFProgram
					:                             textureProgram
					);

			bgfx::frame();
		}
	}

	if (bgfx::isValid(texture) )
	{
		bgfx::destroyTexture(texture);
	}
	bgfx::destroyUniform(s_texColor);
	bgfx::destroyUniform(u_mtx);
	bgfx::destroyUniform(u_params);
	bgfx::destroyProgram(textureProgram);
	bgfx::destroyProgram(textureArrayProgram);
	bgfx::destroyProgram(textureCubeProgram);

	imguiDestroy();

	bgfx::shutdown();

	return exitcode;
}
예제 #6
0
int _main_(int /*_argc*/, char** /*_argv*/)
{
	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_VSYNC;

	bgfx::init();
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set clear color palette for index 0
	bgfx::setClearColor(0, UINT32_C(0x00000000) );

	// Set clear color palette for index 1
	bgfx::setClearColor(1, UINT32_C(0x303030ff) );

	// Set geometry pass view clear state.
	bgfx::setViewClear(RENDER_PASS_GEOMETRY_ID
		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
		, 1.0f
		, 0
		, 1
		);

	// Set light pass view clear state.
	bgfx::setViewClear(RENDER_PASS_LIGHT_ID
		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
		, 1.0f
		, 0
		, 0
		);

	// Create vertex stream declaration.
	PosNormalTangentTexcoordVertex::init();
	PosTexCoord0Vertex::init();
	DebugVertex::init();

	calcTangents(s_cubeVertices
		, BX_COUNTOF(s_cubeVertices)
		, PosNormalTangentTexcoordVertex::ms_decl
		, s_cubeIndices
		, BX_COUNTOF(s_cubeIndices)
		);

	// Create static vertex buffer.
	bgfx::VertexBufferHandle vbh = bgfx::createVertexBuffer(
		  bgfx::makeRef(s_cubeVertices, sizeof(s_cubeVertices) )
		, PosNormalTangentTexcoordVertex::ms_decl
		);

	// Create static index buffer.
	bgfx::IndexBufferHandle ibh = bgfx::createIndexBuffer(bgfx::makeRef(s_cubeIndices, sizeof(s_cubeIndices) ) );

	// Create texture sampler uniforms.
	bgfx::UniformHandle s_texColor  = bgfx::createUniform("s_texColor",  bgfx::UniformType::Uniform1iv);
	bgfx::UniformHandle s_texNormal = bgfx::createUniform("s_texNormal", bgfx::UniformType::Uniform1iv);

	bgfx::UniformHandle s_albedo = bgfx::createUniform("s_albedo", bgfx::UniformType::Uniform1iv);
	bgfx::UniformHandle s_normal = bgfx::createUniform("s_normal", bgfx::UniformType::Uniform1iv);
	bgfx::UniformHandle s_depth  = bgfx::createUniform("s_depth",  bgfx::UniformType::Uniform1iv);
	bgfx::UniformHandle s_light  = bgfx::createUniform("s_light",  bgfx::UniformType::Uniform1iv);

	bgfx::UniformHandle u_mtx            = bgfx::createUniform("u_mtx",            bgfx::UniformType::Uniform4x4fv);
	bgfx::UniformHandle u_lightPosRadius = bgfx::createUniform("u_lightPosRadius", bgfx::UniformType::Uniform4fv);
	bgfx::UniformHandle u_lightRgbInnerR = bgfx::createUniform("u_lightRgbInnerR", bgfx::UniformType::Uniform4fv);

	// Create program from shaders.
	bgfx::ProgramHandle geomProgram    = loadProgram("vs_deferred_geom",       "fs_deferred_geom");
	bgfx::ProgramHandle lightProgram   = loadProgram("vs_deferred_light",      "fs_deferred_light");
	bgfx::ProgramHandle combineProgram = loadProgram("vs_deferred_combine",    "fs_deferred_combine");
	bgfx::ProgramHandle debugProgram   = loadProgram("vs_deferred_debug",      "fs_deferred_debug");
	bgfx::ProgramHandle lineProgram    = loadProgram("vs_deferred_debug_line", "fs_deferred_debug_line");

	// Load diffuse texture.
	bgfx::TextureHandle textureColor  = loadTexture("fieldstone-rgba.dds");

	// Load normal texture.
	bgfx::TextureHandle textureNormal = loadTexture("fieldstone-n.dds");

	bgfx::TextureHandle gbufferTex[3] = { BGFX_INVALID_HANDLE, BGFX_INVALID_HANDLE, BGFX_INVALID_HANDLE };
	bgfx::FrameBufferHandle gbuffer = BGFX_INVALID_HANDLE;
	bgfx::FrameBufferHandle lightBuffer = BGFX_INVALID_HANDLE;

	// Imgui.
	imguiCreate();

	const int64_t timeOffset = bx::getHPCounter();
	const bgfx::RendererType::Enum renderer = bgfx::getRendererType();
	const float texelHalf = bgfx::RendererType::Direct3D9 == renderer ? 0.5f : 0.0f;
	s_originBottomLeft = bgfx::RendererType::OpenGL == renderer || bgfx::RendererType::OpenGLES == renderer;

	// Get renderer capabilities info.
	const bgfx::Caps* caps = bgfx::getCaps();

	uint32_t oldWidth  = 0;
	uint32_t oldHeight = 0;
	uint32_t oldReset  = reset;

	int32_t scrollArea = 0;
	int32_t numLights = 512;
	float lightAnimationSpeed = 0.3f;
	bool animateMesh = true;
	bool showScissorRects = false;
	bool showGBuffer = true;

	float view[16];
	float initialPos[3] = { 0.0f, 0.0f, -15.0f };
	cameraCreate();
	cameraSetPosition(initialPos);
	cameraSetVerticalAngle(0.0f);
	cameraGetViewMtx(view);

	entry::MouseState mouseState;
	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		int64_t now = bx::getHPCounter();
		static int64_t last = now;
		const int64_t frameTime = now - last;
		last = now;
		const double freq = double(bx::getHPFrequency() );
		const double toMs = 1000.0/freq;
		const float deltaTime = float(frameTime/freq);

		float time = (float)( (now-timeOffset)/freq);

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/21-deferred");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: MRT rendering and deferred shading.");
		bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);

		if (2 > caps->maxFBAttachments)
		{
			// When multiple render targets (MRT) is not supported by GPU,
			// implement alternative code path that doesn't use MRT.
			bool blink = uint32_t(time*3.0f)&1;
			bgfx::dbgTextPrintf(0, 5, blink ? 0x1f : 0x01, " MRT not supported by GPU. ");

			// Set view 0 default viewport.
			bgfx::setViewRect(0, 0, 0, width, height);

			// This dummy draw call is here to make sure that view 0 is cleared
			// if no other draw calls are submitted to view 0.
			bgfx::submit(0);
		}
		else
		{
			if (oldWidth  != width
			||  oldHeight != height
			||  oldReset  != reset
			||  !bgfx::isValid(gbuffer) )
			{
				// Recreate variable size render targets when resolution changes.
				oldWidth  = width;
				oldHeight = height;
				oldReset  = reset;

				if (bgfx::isValid(gbuffer) )
				{
					bgfx::destroyFrameBuffer(gbuffer);
				}

				const uint32_t samplerFlags = 0
					| BGFX_TEXTURE_RT
					| BGFX_TEXTURE_MIN_POINT
					| BGFX_TEXTURE_MAG_POINT
					| BGFX_TEXTURE_MIP_POINT
					| BGFX_TEXTURE_U_CLAMP
					| BGFX_TEXTURE_V_CLAMP
					;
				gbufferTex[0] = bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::BGRA8, samplerFlags);
				gbufferTex[1] = bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::BGRA8, samplerFlags);
				gbufferTex[2] = bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::D24,   samplerFlags);
				gbuffer = bgfx::createFrameBuffer(BX_COUNTOF(gbufferTex), gbufferTex, true);

				if (bgfx::isValid(lightBuffer) )
				{
					bgfx::destroyFrameBuffer(lightBuffer);
				}

				lightBuffer = bgfx::createFrameBuffer(width, height, bgfx::TextureFormat::BGRA8, samplerFlags);
			}

			imguiBeginFrame(mouseState.m_mx
				, mouseState.m_my
				, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT  : 0)
				| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
				, 0
				, width
				, height
				);

			imguiBeginScrollArea("Settings", width - width / 5 - 10, 10, width / 5, height / 3, &scrollArea);
			imguiSeparatorLine();

			imguiSlider("Num lights", numLights, 1, 2048);

			if (imguiCheck("Show G-Buffer.", showGBuffer) )
			{
				showGBuffer = !showGBuffer;
			}

			if (imguiCheck("Show light scissor.", showScissorRects) )
			{
				showScissorRects = !showScissorRects;
			}

			if (imguiCheck("Animate mesh.", animateMesh) )
			{
				animateMesh = !animateMesh;
			}

			imguiSlider("Lights animation speed", lightAnimationSpeed, 0.0f, 0.4f, 0.01f);

			imguiEndScrollArea();
			imguiEndFrame();

			// Update camera.
			cameraUpdate(deltaTime, mouseState);
			cameraGetViewMtx(view);

			// Setup views
			float vp[16];
			float invMvp[16];
			{
				bgfx::setViewRect(RENDER_PASS_GEOMETRY_ID,      0, 0, width, height);
				bgfx::setViewRect(RENDER_PASS_LIGHT_ID,         0, 0, width, height);
				bgfx::setViewRect(RENDER_PASS_COMBINE_ID,       0, 0, width, height);
				bgfx::setViewRect(RENDER_PASS_DEBUG_LIGHTS_ID,  0, 0, width, height);
				bgfx::setViewRect(RENDER_PASS_DEBUG_GBUFFER_ID, 0, 0, width, height);

				bgfx::setViewFrameBuffer(RENDER_PASS_LIGHT_ID, lightBuffer);

				float proj[16];
				mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);

				bgfx::setViewFrameBuffer(RENDER_PASS_GEOMETRY_ID, gbuffer);
				bgfx::setViewTransform(RENDER_PASS_GEOMETRY_ID, view, proj);

				bx::mtxMul(vp, view, proj);
				bx::mtxInverse(invMvp, vp);

				bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);
				bgfx::setViewTransform(RENDER_PASS_LIGHT_ID,   NULL, proj);
				bgfx::setViewTransform(RENDER_PASS_COMBINE_ID, NULL, proj);

				const float aspectRatio = float(height)/float(width);
				const float size = 10.0f;
				bx::mtxOrtho(proj, -size, size, size*aspectRatio, -size*aspectRatio, 0.0f, 1000.0f);
				bgfx::setViewTransform(RENDER_PASS_DEBUG_GBUFFER_ID, NULL, proj);

				bx::mtxOrtho(proj, 0.0f, (float)width, 0.0f, (float)height, 0.0f, 1000.0f);
				bgfx::setViewTransform(RENDER_PASS_DEBUG_LIGHTS_ID, NULL, proj);
			}

			const uint32_t dim = 11;
			const float offset = (float(dim-1) * 3.0f) * 0.5f;

			// Draw into geometry pass.
			for (uint32_t yy = 0; yy < dim; ++yy)
			{
				for (uint32_t xx = 0; xx < dim; ++xx)
				{
					float mtx[16];
					if (animateMesh)
					{
						bx::mtxRotateXY(mtx, time*1.023f + xx*0.21f, time*0.03f + yy*0.37f);
					}
					else
					{
						bx::mtxIdentity(mtx);
					}
					mtx[12] = -offset + float(xx)*3.0f;
					mtx[13] = -offset + float(yy)*3.0f;
					mtx[14] = 0.0f;

					// Set transform for draw call.
					bgfx::setTransform(mtx);

					// Set vertex and fragment shaders.
					bgfx::setProgram(geomProgram);

					// Set vertex and index buffer.
					bgfx::setVertexBuffer(vbh);
					bgfx::setIndexBuffer(ibh);

					// Bind textures.
					bgfx::setTexture(0, s_texColor,  textureColor);
					bgfx::setTexture(1, s_texNormal, textureNormal);

					// Set render states.
					bgfx::setState(0
						| BGFX_STATE_RGB_WRITE
						| BGFX_STATE_ALPHA_WRITE
						| BGFX_STATE_DEPTH_WRITE
						| BGFX_STATE_DEPTH_TEST_LESS
						| BGFX_STATE_MSAA
						);

					// Submit primitive for rendering to view 0.
					bgfx::submit(RENDER_PASS_GEOMETRY_ID);
				}
			}

			// Draw lights into light buffer.
			for (int32_t light = 0; light < numLights; ++light)
			{
				Sphere lightPosRadius;

				float lightTime = time * lightAnimationSpeed * (sinf(light/float(numLights) * bx::piHalf ) * 0.5f + 0.5f);
				lightPosRadius.m_center[0] = sinf( ( (lightTime + light*0.47f) + bx::piHalf*1.37f ) )*offset;
				lightPosRadius.m_center[1] = cosf( ( (lightTime + light*0.69f) + bx::piHalf*1.49f ) )*offset;
				lightPosRadius.m_center[2] = sinf( ( (lightTime + light*0.37f) + bx::piHalf*1.57f ) )*2.0f;
				lightPosRadius.m_radius = 2.0f;

				Aabb aabb;
				sphereToAabb(aabb, lightPosRadius);

				float box[8][3] =
				{
					{ aabb.m_min[0], aabb.m_min[1], aabb.m_min[2] },
					{ aabb.m_min[0], aabb.m_min[1], aabb.m_max[2] },
					{ aabb.m_min[0], aabb.m_max[1], aabb.m_min[2] },
					{ aabb.m_min[0], aabb.m_max[1], aabb.m_max[2] },
					{ aabb.m_max[0], aabb.m_min[1], aabb.m_min[2] },
					{ aabb.m_max[0], aabb.m_min[1], aabb.m_max[2] },
					{ aabb.m_max[0], aabb.m_max[1], aabb.m_min[2] },
					{ aabb.m_max[0], aabb.m_max[1], aabb.m_max[2] },
				};

				float xyz[3];
				bx::vec3MulMtxH(xyz, box[0], vp);
				float minx = xyz[0];
				float miny = xyz[1];
				float maxx = xyz[0];
				float maxy = xyz[1];
				float maxz = xyz[2];

				for (uint32_t ii = 1; ii < 8; ++ii)
				{
					bx::vec3MulMtxH(xyz, box[ii], vp);
					minx = bx::fmin(minx, xyz[0]);
					miny = bx::fmin(miny, xyz[1]);
					maxx = bx::fmax(maxx, xyz[0]);
					maxy = bx::fmax(maxy, xyz[1]);
					maxz = bx::fmax(maxz, xyz[2]);
				}

				// Cull light if it's fully behind camera.
				if (maxz >= 0.0f)
				{
					float x0 = bx::fclamp( (minx * 0.5f + 0.5f) * width,  0.0f, (float)width);
					float y0 = bx::fclamp( (miny * 0.5f + 0.5f) * height, 0.0f, (float)height);
					float x1 = bx::fclamp( (maxx * 0.5f + 0.5f) * width,  0.0f, (float)width);
					float y1 = bx::fclamp( (maxy * 0.5f + 0.5f) * height, 0.0f, (float)height);

					if (showScissorRects)
					{
						bgfx::TransientVertexBuffer tvb;
						bgfx::TransientIndexBuffer tib;
						if (bgfx::allocTransientBuffers(&tvb, DebugVertex::ms_decl, 4, &tib, 8) )
						{
							uint32_t abgr = 0x8000ff00;

							DebugVertex* vertex = (DebugVertex*)tvb.data;
							vertex->m_x = x0;
							vertex->m_y = y0;
							vertex->m_z = 0.0f;
							vertex->m_abgr = abgr;
							++vertex;

							vertex->m_x = x1;
							vertex->m_y = y0;
							vertex->m_z = 0.0f;
							vertex->m_abgr = abgr;
							++vertex;

							vertex->m_x = x1;
							vertex->m_y = y1;
							vertex->m_z = 0.0f;
							vertex->m_abgr = abgr;
							++vertex;

							vertex->m_x = x0;
							vertex->m_y = y1;
							vertex->m_z = 0.0f;
							vertex->m_abgr = abgr;

							uint16_t* indices = (uint16_t*)tib.data;
							*indices++ = 0;
							*indices++ = 1;
							*indices++ = 1;
							*indices++ = 2;
							*indices++ = 2;
							*indices++ = 3;
							*indices++ = 3;
							*indices++ = 0;

							bgfx::setProgram(lineProgram);
							bgfx::setVertexBuffer(&tvb);
							bgfx::setIndexBuffer(&tib);
							bgfx::setState(0
								| BGFX_STATE_RGB_WRITE
								| BGFX_STATE_PT_LINES
								| BGFX_STATE_BLEND_ALPHA
								);
							bgfx::submit(RENDER_PASS_DEBUG_LIGHTS_ID);
						}
					}

					uint8_t val = light&7;
					float lightRgbInnerR[4] =
					{
						val & 0x1 ? 1.0f : 0.25f,
						val & 0x2 ? 1.0f : 0.25f,
						val & 0x4 ? 1.0f : 0.25f,
						0.8f,
					};

					// Draw light.
					bgfx::setUniform(u_lightPosRadius, &lightPosRadius);
					bgfx::setUniform(u_lightRgbInnerR, lightRgbInnerR);
					bgfx::setUniform(u_mtx, invMvp);
					const uint16_t scissorHeight = uint16_t(y1-y0);
					bgfx::setScissor(uint16_t(x0), height-scissorHeight-uint16_t(y0), uint16_t(x1-x0), scissorHeight);
					bgfx::setTexture(0, s_normal, gbuffer, 1);
					bgfx::setTexture(1, s_depth,  gbuffer, 2);
					bgfx::setProgram(lightProgram);
					bgfx::setState(0
						| BGFX_STATE_RGB_WRITE
						| BGFX_STATE_ALPHA_WRITE
						| BGFX_STATE_BLEND_ADD
						);
					screenSpaceQuad( (float)width, (float)height, texelHalf, s_originBottomLeft);
					bgfx::submit(RENDER_PASS_LIGHT_ID);
				}
			}

			// Combine color and light buffers.
			bgfx::setTexture(0, s_albedo, gbuffer,     0);
			bgfx::setTexture(1, s_light,  lightBuffer, 0);
			bgfx::setProgram(combineProgram);
			bgfx::setState(0
				| BGFX_STATE_RGB_WRITE
				| BGFX_STATE_ALPHA_WRITE
				);
			screenSpaceQuad( (float)width, (float)height, texelHalf, s_originBottomLeft);
			bgfx::submit(RENDER_PASS_COMBINE_ID);

			if (showGBuffer)
			{
				const float aspectRatio = float(width)/float(height);

				// Draw debug GBuffer.
				for (uint32_t ii = 0; ii < BX_COUNTOF(gbufferTex); ++ii)
				{
					float mtx[16];
					bx::mtxSRT(mtx
						, aspectRatio, 1.0f, 1.0f
						, 0.0f, 0.0f, 0.0f
						, -7.9f - BX_COUNTOF(gbufferTex)*0.1f*0.5f + ii*2.1f*aspectRatio, 4.0f, 0.0f
						);

					bgfx::setTransform(mtx);
					bgfx::setProgram(debugProgram);
					bgfx::setVertexBuffer(vbh);
					bgfx::setIndexBuffer(ibh, 0, 6);
					bgfx::setTexture(0, s_texColor, gbufferTex[ii]);
					bgfx::setState(BGFX_STATE_RGB_WRITE);
					bgfx::submit(RENDER_PASS_DEBUG_GBUFFER_ID);
				}
			}
		}

		// Advance to next frame. Rendering thread will be kicked to
		// process submitted rendering primitives.
		bgfx::frame();
	}

	// Cleanup.
	cameraDestroy();
	imguiDestroy();

	if (bgfx::isValid(gbuffer) )
	{
		bgfx::destroyFrameBuffer(gbuffer);
		bgfx::destroyFrameBuffer(lightBuffer);
	}

	bgfx::destroyIndexBuffer(ibh);
	bgfx::destroyVertexBuffer(vbh);

	bgfx::destroyProgram(geomProgram);
	bgfx::destroyProgram(lightProgram);
	bgfx::destroyProgram(combineProgram);
	bgfx::destroyProgram(debugProgram);
	bgfx::destroyProgram(lineProgram);

	bgfx::destroyTexture(textureColor);
	bgfx::destroyTexture(textureNormal);
	bgfx::destroyUniform(s_texColor);
	bgfx::destroyUniform(s_texNormal);

	bgfx::destroyUniform(s_albedo);
	bgfx::destroyUniform(s_normal);
	bgfx::destroyUniform(s_depth);
	bgfx::destroyUniform(s_light);

	bgfx::destroyUniform(u_lightPosRadius);
	bgfx::destroyUniform(u_lightRgbInnerR);
	bgfx::destroyUniform(u_mtx);

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
예제 #7
0
int _main_(int /*_argc*/, char** /*_argv*/)
{
	bgfx::init();
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set view 0 clear state.
	bgfx::setViewClear(0
			, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
			, 0x303030ff
			, 1.0f
			, 0
			);

	// Create vertex stream declaration.
	PosColorVertex::init();

	const bgfx::Memory* vs_drawstress;
	const bgfx::Memory* fs_drawstress;

	switch (bgfx::getRendererType() )
	{
		case bgfx::RendererType::Direct3D9:
			vs_drawstress = bgfx::makeRef(vs_drawstress_dx9, sizeof(vs_drawstress_dx9) );
			fs_drawstress = bgfx::makeRef(fs_drawstress_dx9, sizeof(fs_drawstress_dx9) );
			break;

		case bgfx::RendererType::Direct3D11:
		case bgfx::RendererType::Direct3D12:
			vs_drawstress = bgfx::makeRef(vs_drawstress_dx11, sizeof(vs_drawstress_dx11) );
			fs_drawstress = bgfx::makeRef(fs_drawstress_dx11, sizeof(fs_drawstress_dx11) );
			break;

		default:
			vs_drawstress = bgfx::makeRef(vs_drawstress_glsl, sizeof(vs_drawstress_glsl) );
			fs_drawstress = bgfx::makeRef(fs_drawstress_glsl, sizeof(fs_drawstress_glsl) );
			break;
	}

	// Create program from shaders.
	program = bgfx::createProgram(
		  bgfx::createShader(vs_drawstress)
		, bgfx::createShader(fs_drawstress)
		, true /* destroy shaders when program is destroyed */
		);

	const bgfx::Memory* mem;

	// Create static vertex buffer.
	mem = bgfx::makeRef(s_cubeVertices, sizeof(s_cubeVertices) );
	vbh = bgfx::createVertexBuffer(mem, PosColorVertex::ms_decl);

	// Create static index buffer.
	mem = bgfx::makeRef(s_cubeIndices, sizeof(s_cubeIndices) );
	ibh = bgfx::createIndexBuffer(mem);

	// Imgui.
	imguiCreate();

#if BX_PLATFORM_EMSCRIPTEN
	emscripten_set_main_loop(&loop, -1, 1);
#else
	while (!mainloop() );
#endif // BX_PLATFORM_EMSCRIPTEN

	// Cleanup.
	imguiDestroy();
	bgfx::destroyIndexBuffer(ibh);
	bgfx::destroyVertexBuffer(vbh);
	bgfx::destroyProgram(program);

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
예제 #8
0
파일: oit.cpp 프로젝트: davidlee80/bgfx
int _main_(int /*_argc*/, char** /*_argv*/)
{
	// Create vertex stream declaration.
	PosColorVertex::init();
	PosColorTexCoord0Vertex::init();

	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_VSYNC;

	bgfx::init();
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Get renderer capabilities info.
	const bgfx::Caps* caps = bgfx::getCaps();

	// Setup root path for binary shaders. Shader binaries are different 
	// for each renderer.
	switch (caps->rendererType)
	{
	default:
		break;

	case bgfx::RendererType::OpenGL:
	case bgfx::RendererType::OpenGLES:
		s_flipV = true;
		break;
	}

	// Imgui.
	void* data = load("font/droidsans.ttf");
	imguiCreate(data);
	free(data);

	const bgfx::Memory* mem;

	// Create static vertex buffer.
	mem = bgfx::makeRef(s_cubeVertices, sizeof(s_cubeVertices) );
	bgfx::VertexBufferHandle vbh = bgfx::createVertexBuffer(mem, PosColorVertex::ms_decl);

	// Create static index buffer.
	mem = bgfx::makeRef(s_cubeIndices, sizeof(s_cubeIndices) );
	bgfx::IndexBufferHandle ibh = bgfx::createIndexBuffer(mem);

	// Create texture sampler uniforms.
	bgfx::UniformHandle u_texColor0 = bgfx::createUniform("u_texColor0", bgfx::UniformType::Uniform1iv);
	bgfx::UniformHandle u_texColor1 = bgfx::createUniform("u_texColor1", bgfx::UniformType::Uniform1iv);
	bgfx::UniformHandle u_color     = bgfx::createUniform("u_color",     bgfx::UniformType::Uniform4fv);

	bgfx::ProgramHandle blend          = loadProgram("vs_oit",      "fs_oit"                  );
	bgfx::ProgramHandle wbSeparatePass = loadProgram("vs_oit",      "fs_oit_wb_separate"      );
	bgfx::ProgramHandle wbSeparateBlit = loadProgram("vs_oit_blit", "fs_oit_wb_separate_blit" );
	bgfx::ProgramHandle wbPass         = loadProgram("vs_oit",      "fs_oit_wb"               );
	bgfx::ProgramHandle wbBlit         = loadProgram("vs_oit_blit", "fs_oit_wb_blit"          );

	bgfx::TextureHandle fbtextures[2] = { BGFX_INVALID_HANDLE, BGFX_INVALID_HANDLE };
	bgfx::FrameBufferHandle fbh = BGFX_INVALID_HANDLE; 

	int64_t timeOffset = bx::getHPCounter();

	uint32_t mode = 1;
	int32_t scrollArea = 0;
	bool frontToBack = true;
	bool fadeInOut = false;

	uint32_t oldWidth = 0;
	uint32_t oldHeight = 0;
	uint32_t oldReset = reset;

	entry::MouseState mouseState;
	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		if (oldWidth  != width
		||  oldHeight != height
		||  oldReset  != reset
		||  !bgfx::isValid(fbh) )
		{
			// Recreate variable size render targets when resolution changes.
			oldWidth  = width;
			oldHeight = height;
			oldReset  = reset;

			if (bgfx::isValid(fbh) )
			{
				bgfx::destroyFrameBuffer(fbh);
			}

			fbtextures[0] = bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::RGBA16F, BGFX_TEXTURE_RT);
			fbtextures[1] = bgfx::createTexture2D(width, height, 1, bgfx::TextureFormat::R16F,    BGFX_TEXTURE_RT);
			fbh = bgfx::createFrameBuffer(BX_COUNTOF(fbtextures), fbtextures, true);
		}

		imguiBeginFrame(mouseState.m_mx
			, mouseState.m_my
			, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT  : 0)
			| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
			, 0
			, width
			, height
			);

		imguiBeginScrollArea("Settings", width - width / 4 - 10, 10, width / 4, height / 3, &scrollArea);
		imguiSeparatorLine();

		imguiLabel("Blend mode:");

		mode = imguiChoose(mode
			, "None"
			, "Separate"
			, "MRT Independent"
			);

		imguiSeparatorLine();

		if (imguiCheck("Front to back", frontToBack) )
		{
			frontToBack ^= true;
		}

		if (imguiCheck("Fade in/out", fadeInOut) )
		{
			fadeInOut ^= true;
		}

		imguiEndScrollArea();
		imguiEndFrame();

		// Set view 0 default viewport.
		bgfx::setViewRectMask(0x3, 0, 0, width, height);

		int64_t now = bx::getHPCounter();
		static int64_t last = now;
		const int64_t frameTime = now - last;
		last = now;
		const double freq = double(bx::getHPFrequency() );
		const double toMs = 1000.0/freq;

		float time = (float)( (now-timeOffset)/freq);

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		// Reference:
		// Weighted, Blended Order-Independent Transparency
		// http://jcgt.org/published/0002/02/09/
		// http://casual-effects.blogspot.com/2014/03/weighted-blended-order-independent.html
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/19-oit");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Weighted, Blended Order Independent Transparency.");
		bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);

		float at[3] = { 0.0f, 0.0f, 0.0f };
		float eye[3] = { 0.0f, 0.0f, -7.0f };
	
		float view[16];
		float proj[16];

		// Set view and projection matrix for view 0.
		bx::mtxLookAt(view, eye, at);
		bx::mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);

		bgfx::setViewTransform(0, view, proj);

		bgfx::setViewClearMask(0x3
			, BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT
			, 0x00000000
			, 1.0f
			, 0
			);

		bgfx::FrameBufferHandle invalid = BGFX_INVALID_HANDLE;
		bgfx::setViewFrameBuffer(0, 0 == mode ? invalid : fbh);

		// Set view and projection matrix for view 1.
		bx::mtxIdentity(view);
		bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);
		bgfx::setViewTransform(1, view, proj);

		for (uint32_t depth = 0; depth < 3; ++depth)
		{
			uint32_t zz = frontToBack ? 2-depth : depth;

			for (uint32_t yy = 0; yy < 3; ++yy)
			{
				for (uint32_t xx = 0; xx < 3; ++xx)
				{
					float color[4] = { xx*1.0f/3.0f, zz*1.0f/3.0f, yy*1.0f/3.0f, 0.5f };

					if (fadeInOut
					&&  zz == 1)
					{
						color[3] = sinf(time*3.0f)*0.49f+0.5f;
					}

					bgfx::setUniform(u_color, color);

					BX_UNUSED(time);
					float mtx[16];
					bx::mtxRotateXY(mtx, time*0.023f + xx*0.21f, time*0.03f + yy*0.37f);
					//mtxIdentity(mtx);
					mtx[12] = -2.5f + float(xx)*2.5f;
					mtx[13] = -2.5f + float(yy)*2.5f;
					mtx[14] = -2.5f + float(zz)*2.5f; //0.0f; // sinf(time + ( (xx+1)*(yy+1)/9.0f)*float(M_PI) )*50.0f+50.0f; //90.0f - (xx+1)*(yy+1)*10.0f;

					// Set transform for draw call.
					bgfx::setTransform(mtx);

					// Set vertex and index buffer.
					bgfx::setVertexBuffer(vbh);
					bgfx::setIndexBuffer(ibh);

					const uint64_t state = 0
						| BGFX_STATE_CULL_CW
						| BGFX_STATE_RGB_WRITE
						| BGFX_STATE_ALPHA_WRITE
						| BGFX_STATE_DEPTH_TEST_LESS
						| BGFX_STATE_MSAA
						;

					switch (mode)
					{
						case 0:
							// Set vertex and fragment shaders.
							bgfx::setProgram(blend);

							// Set render states.
							bgfx::setState(state
								| BGFX_STATE_BLEND_ALPHA
								);
							break;

						case 1:
							// Set vertex and fragment shaders.
							bgfx::setProgram(wbSeparatePass);

							// Set render states.
							bgfx::setState(state
								| BGFX_STATE_BLEND_FUNC_SEPARATE(BGFX_STATE_BLEND_ONE, BGFX_STATE_BLEND_ONE, BGFX_STATE_BLEND_ZERO, BGFX_STATE_BLEND_INV_SRC_ALPHA)
								);
							break;

						default:
							// Set vertex and fragment shaders.
							bgfx::setProgram(wbPass);

							// Set render states.
							bgfx::setState(state
								| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_ONE, BGFX_STATE_BLEND_ONE)
								| BGFX_STATE_BLEND_INDEPENDENT
								, 0
								| BGFX_STATE_BLEND_FUNC_RT_1(BGFX_STATE_BLEND_ZERO, BGFX_STATE_BLEND_SRC_COLOR)
								);
							break;
					}

					// Submit primitive for rendering to view 0.
					bgfx::submit(0);
				}
			}
		}

		if (0 != mode)
		{
			bgfx::setTexture(0, u_texColor0, fbtextures[0]);
			bgfx::setTexture(1, u_texColor1, fbtextures[1]);
			bgfx::setProgram(1 == mode ? wbSeparateBlit : wbBlit);
			bgfx::setState(0
				| BGFX_STATE_RGB_WRITE
				| BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_INV_SRC_ALPHA, BGFX_STATE_BLEND_SRC_ALPHA)
				);
			screenSpaceQuad( (float)width, (float)height, s_flipV);
			bgfx::submit(1);
		}

		// Advance to next frame. Rendering thread will be kicked to 
		// process submitted rendering primitives.
		bgfx::frame();
	}

	// Cleanup.
	imguiDestroy();

	bgfx::destroyFrameBuffer(fbh);
	bgfx::destroyIndexBuffer(ibh);
	bgfx::destroyVertexBuffer(vbh);
	bgfx::destroyProgram(blend);
	bgfx::destroyProgram(wbSeparatePass);
	bgfx::destroyProgram(wbSeparateBlit);
	bgfx::destroyProgram(wbPass);
	bgfx::destroyProgram(wbBlit);
	bgfx::destroyUniform(u_texColor0);
	bgfx::destroyUniform(u_texColor1);
	bgfx::destroyUniform(u_color);

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
예제 #9
0
파일: ibl.cpp 프로젝트: Tauwasser/mame
int _main_(int _argc, char** _argv)
{
	Args args(_argc, _argv);

	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset  = 0
		| BGFX_RESET_VSYNC
		| BGFX_RESET_MSAA_X16
		;

	bgfx::init(args.m_type, args.m_pciId);
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set views  clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
		, 0x303030ff
		, 1.0f
		, 0
		);

	// Imgui.
	imguiCreate();

	// Uniforms.
	Uniforms uniforms;
	uniforms.init();

	// Vertex declarations.
	PosColorTexCoord0Vertex::init();

	LightProbe lightProbes[LightProbe::Count];
	lightProbes[LightProbe::Bolonga].load("bolonga");
	lightProbes[LightProbe::Kyoto  ].load("kyoto");
	LightProbe::Enum currentLightProbe = LightProbe::Bolonga;

	bgfx::UniformHandle u_mtx        = bgfx::createUniform("u_mtx",        bgfx::UniformType::Mat4);
	bgfx::UniformHandle u_params     = bgfx::createUniform("u_params",     bgfx::UniformType::Vec4);
	bgfx::UniformHandle u_flags      = bgfx::createUniform("u_flags",      bgfx::UniformType::Vec4);
	bgfx::UniformHandle u_camPos     = bgfx::createUniform("u_camPos",     bgfx::UniformType::Vec4);
	bgfx::UniformHandle s_texCube    = bgfx::createUniform("s_texCube",    bgfx::UniformType::Int1);
	bgfx::UniformHandle s_texCubeIrr = bgfx::createUniform("s_texCubeIrr", bgfx::UniformType::Int1);

	bgfx::ProgramHandle programMesh  = loadProgram("vs_ibl_mesh",   "fs_ibl_mesh");
	bgfx::ProgramHandle programSky   = loadProgram("vs_ibl_skybox", "fs_ibl_skybox");

	Mesh* meshBunny;
	meshBunny = meshLoad("meshes/bunny.bin");

	Mesh* meshOrb;
	meshOrb = meshLoad("meshes/orb.bin");

	Camera camera;
	Mouse mouse;

	struct Settings
	{
		Settings()
		{
			m_envRotCurr = 0.0f;
			m_envRotDest = 0.0f;
			m_lightDir[0] = -0.8f;
			m_lightDir[1] = 0.2f;
			m_lightDir[2] = -0.5f;
			m_lightCol[0] = 1.0f;
			m_lightCol[1] = 1.0f;
			m_lightCol[2] = 1.0f;
			m_glossiness = 0.7f;
			m_exposure = 0.0f;
			m_bgType = 3.0f;
			m_radianceSlider = 2.0f;
			m_reflectivity = 0.85f;
			m_rgbDiff[0] = 1.0f;
			m_rgbDiff[1] = 1.0f;
			m_rgbDiff[2] = 1.0f;
			m_rgbSpec[0] = 1.0f;
			m_rgbSpec[1] = 1.0f;
			m_rgbSpec[2] = 1.0f;
			m_lod = 0.0f;
			m_doDiffuse = false;
			m_doSpecular = false;
			m_doDiffuseIbl = true;
			m_doSpecularIbl = true;
			m_showLightColorWheel = true;
			m_showDiffColorWheel = true;
			m_showSpecColorWheel = true;
			m_metalOrSpec = 0;
			m_meshSelection = 0;
			m_crossCubemapPreview = ImguiCubemap::Latlong;
		}

		float m_envRotCurr;
		float m_envRotDest;
		float m_lightDir[3];
		float m_lightCol[3];
		float m_glossiness;
		float m_exposure;
		float m_radianceSlider;
		float m_bgType;
		float m_reflectivity;
		float m_rgbDiff[3];
		float m_rgbSpec[3];
		float m_lod;
		bool m_doDiffuse;
		bool m_doSpecular;
		bool m_doDiffuseIbl;
		bool m_doSpecularIbl;
		bool m_showLightColorWheel;
		bool m_showDiffColorWheel;
		bool m_showSpecColorWheel;
		uint8_t m_metalOrSpec;
		uint8_t m_meshSelection;
		ImguiCubemap::Enum m_crossCubemapPreview;
	};

	Settings settings;

	int32_t leftScrollArea = 0;

	entry::MouseState mouseState;
	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		imguiBeginFrame(mouseState.m_mx
			, mouseState.m_my
			, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT   : 0)
			| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT  : 0)
			| (mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
			, mouseState.m_mz
			, uint16_t(width)
			, uint16_t(height)
			);

		static int32_t rightScrollArea = 0;
		imguiBeginScrollArea("", width - 256 - 10, 10, 256, 700, &rightScrollArea);

		imguiLabel("Environment light:");
		imguiIndent();
		imguiBool("IBL Diffuse",  settings.m_doDiffuseIbl);
		imguiBool("IBL Specular", settings.m_doSpecularIbl);
		currentLightProbe = LightProbe::Enum(imguiTabs(
								  uint8_t(currentLightProbe)
								, true
								, ImguiAlign::LeftIndented
								, 16
								, 2
								, 2
								, "Bolonga"
								, "Kyoto"
								) );
		if (imguiCube(lightProbes[currentLightProbe].m_tex, settings.m_lod, settings.m_crossCubemapPreview, true) )
		{
			settings.m_crossCubemapPreview = ImguiCubemap::Enum( (settings.m_crossCubemapPreview+1) % ImguiCubemap::Count);
		}
		imguiSlider("Texture LOD", settings.m_lod, 0.0f, 10.1f, 0.1f);
		imguiUnindent();

		imguiSeparator(8);
		imguiLabel("Directional light:");
		imguiIndent();
		imguiBool("Diffuse",  settings.m_doDiffuse);
		imguiBool("Specular", settings.m_doSpecular);
		const bool doDirectLighting = settings.m_doDiffuse || settings.m_doSpecular;
		imguiSlider("Light direction X", settings.m_lightDir[0], -1.0f, 1.0f, 0.1f, doDirectLighting);
		imguiSlider("Light direction Y", settings.m_lightDir[1], -1.0f, 1.0f, 0.1f, doDirectLighting);
		imguiSlider("Light direction Z", settings.m_lightDir[2], -1.0f, 1.0f, 0.1f, doDirectLighting);
		imguiColorWheel("Color:", settings.m_lightCol, settings.m_showLightColorWheel, 0.6f, doDirectLighting);
		imguiUnindent();

		imguiSeparator(8);
		imguiLabel("Background:");
		imguiIndent();
		{
			int32_t selection;
			if      (0.0f == settings.m_bgType) { selection = UINT8_C(0); }
			else if (7.0f == settings.m_bgType) { selection = UINT8_C(2); }
			else                                { selection = UINT8_C(1); }

			selection = imguiTabs(
							  uint8_t(selection)
							, true
							, ImguiAlign::LeftIndented
							, 16
							, 2
							, 3
							, "Skybox"
							, "Radiance"
							, "Irradiance"
							);
			if      (0 == selection) { settings.m_bgType = 0.0f; }
			else if (2 == selection) { settings.m_bgType = 7.0f; }
			else                     { settings.m_bgType = settings.m_radianceSlider; }
			const bool isRadiance = (selection == 1);
			imguiSlider("Mip level", settings.m_radianceSlider, 1.0f, 6.0f, 0.1f, isRadiance);
		}
		imguiUnindent();

		imguiSeparator(8);
		imguiLabel("Post processing:");
		imguiIndent();
		imguiSlider("Exposure", settings.m_exposure, -4.0f, 4.0f, 0.1f);
		imguiUnindent();

		imguiSeparator();

		imguiEndScrollArea();

		imguiBeginScrollArea("", 10, 70, 256, 636, &leftScrollArea);

		imguiLabel("Mesh:");
		imguiIndent();
		settings.m_meshSelection = uint8_t(imguiChoose(settings.m_meshSelection, "Bunny", "Orbs") );
		imguiUnindent();

		const bool isBunny = (0 == settings.m_meshSelection);
		if (!isBunny)
		{
			settings.m_metalOrSpec = 0;
		}

		imguiSeparator(4);
		imguiLabel("Workflow:");
		imguiIndent();
		if (imguiCheck("Metalness", 0 == settings.m_metalOrSpec, isBunny) ) { settings.m_metalOrSpec = 0; }
		if (imguiCheck("Specular",  1 == settings.m_metalOrSpec, isBunny) ) { settings.m_metalOrSpec = 1; }
		imguiUnindent();

		imguiSeparator(4);
		imguiLabel("Material:");
		imguiIndent();
		imguiSlider("Glossiness", settings.m_glossiness, 0.0f, 1.0f, 0.01f, isBunny);
		imguiSlider(0 == settings.m_metalOrSpec ? "Metalness" : "Diffuse - Specular", settings.m_reflectivity, 0.0f, 1.0f, 0.01f, isBunny);
		imguiUnindent();

		imguiColorWheel("Diffuse:", &settings.m_rgbDiff[0], settings.m_showDiffColorWheel, 0.7f);
		imguiSeparator();
		imguiColorWheel("Specular:", &settings.m_rgbSpec[0], settings.m_showSpecColorWheel, 0.7f, (1 == settings.m_metalOrSpec) && isBunny);

		imguiEndScrollArea();

		imguiEndFrame();

		uniforms.m_glossiness   = settings.m_glossiness;
		uniforms.m_reflectivity = settings.m_reflectivity;
		uniforms.m_exposure     = settings.m_exposure;
		uniforms.m_bgType       = settings.m_bgType;
		uniforms.m_metalOrSpec   = float(settings.m_metalOrSpec);
		uniforms.m_doDiffuse     = float(settings.m_doDiffuse);
		uniforms.m_doSpecular    = float(settings.m_doSpecular);
		uniforms.m_doDiffuseIbl  = float(settings.m_doDiffuseIbl);
		uniforms.m_doSpecularIbl = float(settings.m_doSpecularIbl);
		bx::memCopy(uniforms.m_rgbDiff,  settings.m_rgbDiff,  3*sizeof(float) );
		bx::memCopy(uniforms.m_rgbSpec,  settings.m_rgbSpec,  3*sizeof(float) );
		bx::memCopy(uniforms.m_lightDir, settings.m_lightDir, 3*sizeof(float) );
		bx::memCopy(uniforms.m_lightCol, settings.m_lightCol, 3*sizeof(float) );

		int64_t now = bx::getHPCounter();
		static int64_t last = now;
		const int64_t frameTime = now - last;
		last = now;
		const double freq = double(bx::getHPFrequency() );
		const double toMs = 1000.0/freq;
		const float deltaTimeSec = float(double(frameTime)/freq);

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/18-ibl");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Image-based lighting.");
		bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);

		// Camera.
		const bool mouseOverGui = imguiMouseOverArea();
		mouse.update(float(mouseState.m_mx), float(mouseState.m_my), mouseState.m_mz, width, height);
		if (!mouseOverGui)
		{
			if (mouseState.m_buttons[entry::MouseButton::Left])
			{
				camera.orbit(mouse.m_dx, mouse.m_dy);
			}
			else if (mouseState.m_buttons[entry::MouseButton::Right])
			{
				camera.dolly(mouse.m_dx + mouse.m_dy);
			}
			else if (mouseState.m_buttons[entry::MouseButton::Middle])
			{
				settings.m_envRotDest += mouse.m_dx*2.0f;
			}
			else if (0 != mouse.m_scroll)
			{
				camera.dolly(float(mouse.m_scroll)*0.05f);
			}
		}
		camera.update(deltaTimeSec);
		bx::memCopy(uniforms.m_cameraPos, camera.m_pos.curr, 3*sizeof(float) );

		// View Transform 0.
		float view[16];
		float proj[16];
		bx::mtxIdentity(view);
		bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);
		bgfx::setViewTransform(0, view, proj);

		// View Transform 1.
		camera.mtxLookAt(view);
		bx::mtxProj(proj, 45.0f, float(width)/float(height), 0.1f, 100.0f, bgfx::getCaps()->homogeneousDepth);
		bgfx::setViewTransform(1, view, proj);

		// View rect.
		bgfx::setViewRect(0, 0, 0, uint16_t(width), uint16_t(height) );
		bgfx::setViewRect(1, 0, 0, uint16_t(width), uint16_t(height) );

		// Env rotation.
		const float amount = bx::fmin(deltaTimeSec/0.12f, 1.0f);
		settings.m_envRotCurr = bx::flerp(settings.m_envRotCurr, settings.m_envRotDest, amount);

		// Env mtx.
		float mtxEnvView[16];
		camera.envViewMtx(mtxEnvView);
		float mtxEnvRot[16];
		bx::mtxRotateY(mtxEnvRot, settings.m_envRotCurr);
		bx::mtxMul(uniforms.m_mtx, mtxEnvView, mtxEnvRot); // Used for Skybox.

		// Submit view 0.
		bgfx::setTexture(0, s_texCube, lightProbes[currentLightProbe].m_tex);
		bgfx::setTexture(1, s_texCubeIrr, lightProbes[currentLightProbe].m_texIrr);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width, (float)height, true);
		uniforms.submit();
		bgfx::submit(0, programSky);

		// Submit view 1.
		bx::memCopy(uniforms.m_mtx, mtxEnvRot, 16*sizeof(float)); // Used for IBL.
		if (0 == settings.m_meshSelection)
		{
			// Submit bunny.
			float mtx[16];
			bx::mtxSRT(mtx, 1.0f, 1.0f, 1.0f, 0.0f, bx::pi, 0.0f, 0.0f, -0.80f, 0.0f);
			bgfx::setTexture(0, s_texCube,    lightProbes[currentLightProbe].m_tex);
			bgfx::setTexture(1, s_texCubeIrr, lightProbes[currentLightProbe].m_texIrr);
			uniforms.submit();
			meshSubmit(meshBunny, 1, programMesh, mtx);
		}
		else
		{
			// Submit orbs.
			for (float yy = 0, yend = 5.0f; yy < yend; yy+=1.0f)
			{
				for (float xx = 0, xend = 5.0f; xx < xend; xx+=1.0f)
				{
					const float scale   =  1.2f;
					const float spacing =  2.2f;
					const float yAdj    = -0.8f;

					float mtx[16];
					bx::mtxSRT(mtx
							, scale/xend
							, scale/xend
							, scale/xend
							, 0.0f
							, 0.0f
							, 0.0f
							, 0.0f      + (xx/xend)*spacing - (1.0f + (scale-1.0f)*0.5f - 1.0f/xend)
							, yAdj/yend + (yy/yend)*spacing - (1.0f + (scale-1.0f)*0.5f - 1.0f/yend)
							, 0.0f
							);

					uniforms.m_glossiness   =        xx*(1.0f/xend);
					uniforms.m_reflectivity = (yend-yy)*(1.0f/yend);
					uniforms.m_metalOrSpec = 0.0f;
					uniforms.submit();

					bgfx::setTexture(0, s_texCube,    lightProbes[currentLightProbe].m_tex);
					bgfx::setTexture(1, s_texCubeIrr, lightProbes[currentLightProbe].m_texIrr);
					meshSubmit(meshOrb, 1, programMesh, mtx);
				}
			}
		}

		// Advance to next frame. Rendering thread will be kicked to
		// process submitted rendering primitives.
		bgfx::frame();
	}

	meshUnload(meshBunny);
	meshUnload(meshOrb);

	// Cleanup.
	bgfx::destroyProgram(programMesh);
	bgfx::destroyProgram(programSky);

	bgfx::destroyUniform(u_camPos);
	bgfx::destroyUniform(u_flags);
	bgfx::destroyUniform(u_params);
	bgfx::destroyUniform(u_mtx);

	bgfx::destroyUniform(s_texCube);
	bgfx::destroyUniform(s_texCubeIrr);

	for (uint8_t ii = 0; ii < LightProbe::Count; ++ii)
	{
		lightProbes[ii].destroy();
	}

	uniforms.destroy();

	imguiDestroy();

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
예제 #10
0
int _main_(int _argc, char** _argv)
{
	Args args(_argc, _argv);

	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_VSYNC;

	bgfx::init(args.m_type, args.m_pciId);
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set views  clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
		, 0x303030ff
		, 1.0f
		, 0
		);

	// Imgui.
	imguiCreate();

	// Uniforms.
	s_uniforms.init();

	// Vertex declarations.
	PosColorTexCoord0Vertex::init();

	LightProbe lightProbes[LightProbe::Count];
	lightProbes[LightProbe::Wells ].load("wells");
	lightProbes[LightProbe::Uffizi].load("uffizi");
	lightProbes[LightProbe::Pisa  ].load("pisa");
	lightProbes[LightProbe::Ennis ].load("ennis");
	lightProbes[LightProbe::Grace ].load("grace");
	LightProbe::Enum currentLightProbe = LightProbe::Wells;

	bgfx::UniformHandle u_mtx        = bgfx::createUniform("u_mtx",        bgfx::UniformType::Mat4);
	bgfx::UniformHandle u_params     = bgfx::createUniform("u_params",     bgfx::UniformType::Vec4);
	bgfx::UniformHandle u_flags      = bgfx::createUniform("u_flags",      bgfx::UniformType::Vec4);
	bgfx::UniformHandle u_camPos     = bgfx::createUniform("u_camPos",     bgfx::UniformType::Vec4);
	bgfx::UniformHandle s_texCube    = bgfx::createUniform("s_texCube",    bgfx::UniformType::Int1);
	bgfx::UniformHandle s_texCubeIrr = bgfx::createUniform("s_texCubeIrr", bgfx::UniformType::Int1);

	bgfx::ProgramHandle programMesh  = loadProgram("vs_ibl_mesh",   "fs_ibl_mesh");
	bgfx::ProgramHandle programSky   = loadProgram("vs_ibl_skybox", "fs_ibl_skybox");

	Mesh* meshBunny;
	meshBunny = meshLoad("meshes/bunny.bin");

	struct Settings
	{
		float m_speed;
		float m_glossiness;
		float m_exposure;
		float m_diffspec;
		float m_rgbDiff[3];
		float m_rgbSpec[3];
		bool m_diffuse;
		bool m_specular;
		bool m_diffuseIbl;
		bool m_specularIbl;
		bool m_showDiffColorWheel;
		bool m_showSpecColorWheel;
		ImguiCubemap::Enum m_crossCubemapPreview;
	};

	Settings settings;
	settings.m_speed = 0.37f;
	settings.m_glossiness = 1.0f;
	settings.m_exposure = 0.0f;
	settings.m_diffspec = 0.65f;
	settings.m_rgbDiff[0] = 0.2f;
	settings.m_rgbDiff[1] = 0.2f;
	settings.m_rgbDiff[2] = 0.2f;
	settings.m_rgbSpec[0] = 1.0f;
	settings.m_rgbSpec[1] = 1.0f;
	settings.m_rgbSpec[2] = 1.0f;
	settings.m_diffuse = true;
	settings.m_specular = true;
	settings.m_diffuseIbl = true;
	settings.m_specularIbl = true;
	settings.m_showDiffColorWheel = true;
	settings.m_showSpecColorWheel = false;
	settings.m_crossCubemapPreview = ImguiCubemap::Cross;

	float time = 0.0f;

	int32_t leftScrollArea = 0;

	entry::MouseState mouseState;
	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		imguiBeginFrame(mouseState.m_mx
			, mouseState.m_my
			, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT   : 0)
			| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT  : 0)
			| (mouseState.m_buttons[entry::MouseButton::Middle] ? IMGUI_MBUT_MIDDLE : 0)
			, mouseState.m_mz
			, width
			, height
			);

		static int32_t rightScrollArea = 0;
		imguiBeginScrollArea("Settings", width - 256 - 10, 10, 256, 540, &rightScrollArea);

		imguiLabel("Shade:");
		imguiSeparator();
		imguiBool("Diffuse",      settings.m_diffuse);
		imguiBool("Specular",     settings.m_specular);
		imguiBool("IBL Diffuse",  settings.m_diffuseIbl);
		imguiBool("IBL Specular", settings.m_specularIbl);

		imguiSeparatorLine();
		imguiSlider("Speed", settings.m_speed, 0.0f, 1.0f, 0.01f);
		imguiSeparatorLine();

		imguiSeparator();
		imguiSlider("Exposure", settings.m_exposure, -8.0f, 8.0f, 0.01f);
		imguiSeparator();

		imguiLabel("Environment:");
		currentLightProbe = LightProbe::Enum(imguiChoose(currentLightProbe
													   , "Wells"
													   , "Uffizi"
													   , "Pisa"
													   , "Ennis"
													   , "Grace"
													   ) );
		static float lod = 0.0f;
		if (imguiCube(lightProbes[currentLightProbe].m_tex, lod, settings.m_crossCubemapPreview, true) )
		{
			settings.m_crossCubemapPreview = ImguiCubemap::Enum( (settings.m_crossCubemapPreview+1) % ImguiCubemap::Count);
		}
		imguiSlider("Texture LOD", lod, 0.0f, 10.1f, 0.1f);

		imguiEndScrollArea();

		imguiBeginScrollArea("Settings", 10, 70, 256, 576, &leftScrollArea);

		imguiLabel("Material properties:");
		imguiSeparator();
		imguiSlider("Diffuse - Specular", settings.m_diffspec,   0.0f, 1.0f, 0.01f);
		imguiSlider("Glossiness"        , settings.m_glossiness, 0.0f, 1.0f, 0.01f);
		imguiSeparator();

		imguiColorWheel("Diffuse color:", &settings.m_rgbDiff[0], settings.m_showDiffColorWheel);
		imguiSeparator();
		imguiColorWheel("Specular color:", &settings.m_rgbSpec[0], settings.m_showSpecColorWheel);

		imguiSeparator();
		imguiLabel("Predefined materials:");
		imguiSeparator();

		if (imguiButton("Gold") )
		{
			settings.m_glossiness = 0.8f;
			settings.m_diffspec   = 1.0f;

			settings.m_rgbDiff[0] = 0.0f;
			settings.m_rgbDiff[1] = 0.0f;
			settings.m_rgbDiff[2] = 0.0f;

			settings.m_rgbSpec[0] = 1.0f;
			settings.m_rgbSpec[1] = 0.86f;
			settings.m_rgbSpec[2] = 0.58f;
		}

		if (imguiButton("Copper") )
		{
			settings.m_glossiness = 0.67f;
			settings.m_diffspec   = 1.0f;

			settings.m_rgbDiff[0] = 0.0f;
			settings.m_rgbDiff[1] = 0.0f;
			settings.m_rgbDiff[2] = 0.0f;

			settings.m_rgbSpec[0] = 0.98f;
			settings.m_rgbSpec[1] = 0.82f;
			settings.m_rgbSpec[2] = 0.76f;
		}

		if (imguiButton("Titanium") )
		{
			settings.m_glossiness = 0.57f;
			settings.m_diffspec   = 1.0f;

			settings.m_rgbDiff[0] = 0.0f;
			settings.m_rgbDiff[1] = 0.0f;
			settings.m_rgbDiff[2] = 0.0f;

			settings.m_rgbSpec[0] = 0.76f;
			settings.m_rgbSpec[1] = 0.73f;
			settings.m_rgbSpec[2] = 0.71f;
		}

		if (imguiButton("Steel") )
		{
			settings.m_glossiness = 0.82f;
			settings.m_diffspec   = 1.0f;

			settings.m_rgbDiff[0] = 0.0f;
			settings.m_rgbDiff[1] = 0.0f;
			settings.m_rgbDiff[2] = 0.0f;

			settings.m_rgbSpec[0] = 0.77f;
			settings.m_rgbSpec[1] = 0.78f;
			settings.m_rgbSpec[2] = 0.77f;
		}

		imguiEndScrollArea();

		imguiEndFrame();

		s_uniforms.m_glossiness = settings.m_glossiness;
		s_uniforms.m_exposure = settings.m_exposure;
		s_uniforms.m_diffspec = settings.m_diffspec;
		s_uniforms.m_flags[0] = float(settings.m_diffuse);
		s_uniforms.m_flags[1] = float(settings.m_specular);
		s_uniforms.m_flags[2] = float(settings.m_diffuseIbl);
		s_uniforms.m_flags[3] = float(settings.m_specularIbl);
		memcpy(s_uniforms.m_rgbDiff, settings.m_rgbDiff, 3*sizeof(float) );
		memcpy(s_uniforms.m_rgbSpec, settings.m_rgbSpec, 3*sizeof(float) );

		s_uniforms.submitPerFrameUniforms();

		int64_t now = bx::getHPCounter();
		static int64_t last = now;
		const int64_t frameTime = now - last;
		last = now;
		const double freq = double(bx::getHPFrequency() );
		const double toMs = 1000.0/freq;

		time += (float)(frameTime*settings.m_speed/freq);
		s_uniforms.m_camPosTime[3] = time;

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/18-ibl");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Image based lightning.");
		bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);

		float at[3] = { 0.0f, 0.0f, 0.0f };
		float eye[3] = { 0.0f, 0.0f, -3.0f };

		bx::mtxRotateXY(s_uniforms.m_mtx
			, 0.0f
			, time
			);

		float view[16];
		float proj[16];

		bx::mtxIdentity(view);
		bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);
		bgfx::setViewTransform(0, view, proj);

		bx::mtxLookAt(view, eye, at);
		memcpy(s_uniforms.m_camPosTime, eye, 3*sizeof(float) );
		bx::mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);
		bgfx::setViewTransform(1, view, proj);

		bgfx::setViewRect(0, 0, 0, width, height);
		bgfx::setViewRect(1, 0, 0, width, height);

		// View 0.
		bgfx::setTexture(0, s_texCube, lightProbes[currentLightProbe].m_tex);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width, (float)height, true);
		s_uniforms.submitPerDrawUniforms();
		bgfx::submit(0, programSky);

		// View 1.
		float mtx[16];
		bx::mtxSRT(mtx
				, 1.0f
				, 1.0f
				, 1.0f
				, 0.0f
				, bx::pi+time
				, 0.0f
				, 0.0f
				, -1.0f
				, 0.0f
				);

		bgfx::setTexture(0, s_texCube,    lightProbes[currentLightProbe].m_tex);
		bgfx::setTexture(1, s_texCubeIrr, lightProbes[currentLightProbe].m_texIrr);
		meshSubmit(meshBunny, 1, programMesh, mtx);

		// Advance to next frame. Rendering thread will be kicked to
		// process submitted rendering primitives.
		bgfx::frame();
	}

	meshUnload(meshBunny);

	// Cleanup.
	bgfx::destroyProgram(programMesh);
	bgfx::destroyProgram(programSky);

	bgfx::destroyUniform(u_camPos);
	bgfx::destroyUniform(u_flags);
	bgfx::destroyUniform(u_params);
	bgfx::destroyUniform(u_mtx);

	bgfx::destroyUniform(s_texCube);
	bgfx::destroyUniform(s_texCubeIrr);

	for (uint8_t ii = 0; ii < LightProbe::Count; ++ii)
	{
		lightProbes[ii].destroy();
	}

	s_uniforms.destroy();

	imguiDestroy();

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
예제 #11
0
파일: fontsdf.cpp 프로젝트: lxlpp123/bgfx
int _main_(int /*_argc*/, char** /*_argv*/)
{
	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_VSYNC;

	bgfx::init();

	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH
		, 0x303030ff
		, 1.0f
		, 0
		);

	// Imgui.
	imguiCreate();

	char* bigText = loadText( "text/sherlock_holmes_a_scandal_in_bohemia_arthur_conan_doyle.txt");

	// Init the text rendering system.
	FontManager* fontManager = new FontManager(512);
	TextBufferManager* textBufferManager = new TextBufferManager(fontManager);

	TrueTypeHandle font = loadTtf(fontManager, "font/special_elite.ttf");

	// Create a distance field font.
	FontHandle fontSdf = fontManager->createFontByPixelSize(font, 0, 48, FONT_TYPE_DISTANCE);

	// Create a scaled down version of the same font (without adding anything to the atlas).
	FontHandle fontScaled = fontManager->createScaledFontToPixelSize(fontSdf, 14);

	TextLineMetrics metrics(fontManager->getFontInfo(fontScaled) );
	uint32_t lineCount = metrics.getLineCount(bigText);

	float visibleLineCount = 20.0f;

	const char* textBegin = 0;
	const char* textEnd = 0;
	metrics.getSubText(bigText, 0, (uint32_t)visibleLineCount, textBegin, textEnd);

	TextBufferHandle scrollableBuffer = textBufferManager->createTextBuffer(FONT_TYPE_DISTANCE, BufferType::Transient);
	textBufferManager->setTextColor(scrollableBuffer, 0xFFFFFFFF);

	textBufferManager->appendText(scrollableBuffer, fontScaled, textBegin, textEnd);

	entry::MouseState mouseState;
	int32_t scrollArea = 0;
	const int32_t guiPanelWidth = 250;
	const int32_t guiPanelHeight = 200;
	float textScroll = 0.0f;
	float textRotation = 0.0f;
	float textScale = 1.0f;
	float textSize = 14.0f;

	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		imguiBeginFrame(mouseState.m_mx
			, mouseState.m_my
			, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT  : 0)
			| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
			, mouseState.m_mz
			, width
			, height
			);

		imguiBeginScrollArea("Text Area"
			, width - guiPanelWidth - 10
			, 10
			, guiPanelWidth
			, guiPanelHeight
			, &scrollArea
			);
		imguiSeparatorLine();

		bool recomputeVisibleText = false;
		recomputeVisibleText |= imguiSlider("Number of lines", visibleLineCount, 1.0f, 177.0f , 1.0f);
		if (imguiSlider("Font size", textSize, 6.0f, 64.0f , 1.0f) )
		{
			fontManager->destroyFont(fontScaled);
			fontScaled = fontManager->createScaledFontToPixelSize(fontSdf, (uint32_t) textSize);
			metrics = TextLineMetrics(fontManager->getFontInfo(fontScaled) );
			recomputeVisibleText = true;
		}

		recomputeVisibleText |= imguiSlider("Scroll", textScroll, 0.0f, (lineCount-visibleLineCount) , 1.0f);
		imguiSlider("Rotate", textRotation, 0.0f, bx::pi*2.0f , 0.1f);
		recomputeVisibleText |= imguiSlider("Scale", textScale, 0.1f, 10.0f , 0.1f);

		if (recomputeVisibleText)
		{
			textBufferManager->clearTextBuffer(scrollableBuffer);
			metrics.getSubText(bigText,(uint32_t)textScroll, (uint32_t)(textScroll+visibleLineCount), textBegin, textEnd);
			textBufferManager->appendText(scrollableBuffer, fontScaled, textBegin, textEnd);
		}

		imguiEndScrollArea();

		imguiEndFrame();

		// Set view 0 default viewport.
		bgfx::setViewRect(0, 0, 0, width, height);

		// This dummy draw call is here to make sure that view 0 is cleared
		// if no other draw calls are submitted to view 0.
		bgfx::submit(0);

		int64_t now = bx::getHPCounter();
		static int64_t last = now;
		const int64_t frameTime = now - last;
		last = now;
		const double freq = double(bx::getHPFrequency() );
		const double toMs = 1000.0 / freq;

		// Use debug font to print32_t information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/11-fontsdf");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Use a single distance field font to render text of various size.");
		bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime) * toMs);

		float at[3]  = { 0, 0, 0.0f };
		float eye[3] = {0, 0, -1.0f };

		float view[16];
		bx::mtxLookAt(view, eye, at);

		const float centering = 0.5f;

		// Setup a top-left ortho matrix for screen space drawing.
		const bgfx::HMD* hmd = bgfx::getHMD();
		if (NULL != hmd && 0 != (hmd->flags & BGFX_HMD_RENDERING) )
		{
			float proj[16];
			bx::mtxProj(proj, hmd->eye[0].fov, 0.1f, 100.0f);

			static float time = 0.0f;
			time += 0.05f;

			const float dist = 10.0f;
			const float offset0 = -proj[8] + (hmd->eye[0].viewOffset[0] / dist * proj[0]);
			const float offset1 = -proj[8] + (hmd->eye[1].viewOffset[0] / dist * proj[0]);

			float ortho[2][16];
			const float viewOffset = width/4.0f;
			const float viewWidth  = width/2.0f;
			bx::mtxOrtho(ortho[0], centering + viewOffset, centering + viewOffset + viewWidth, height + centering, centering, -1.0f, 1.0f, offset0);
			bx::mtxOrtho(ortho[1], centering + viewOffset, centering + viewOffset + viewWidth, height + centering, centering, -1.0f, 1.0f, offset1);
			bgfx::setViewTransform(0, view, ortho[0], BGFX_VIEW_STEREO, ortho[1]);
			bgfx::setViewRect(0, 0, 0, hmd->width, hmd->height);
		}
		else
		{
			float ortho[16];
			bx::mtxOrtho(ortho, centering, width + centering, height + centering, centering, -1.0f, 1.0f);
			bgfx::setViewTransform(0, view, ortho);
			bgfx::setViewRect(0, 0, 0, width, height);
		}

		//very crude approximation :(
		float textAreaWidth = 0.5f * 66.0f * fontManager->getFontInfo(fontScaled).maxAdvanceWidth;

		float textRotMat[16];
		float textCenterMat[16];
		float textScaleMat[16];
		float screenCenterMat[16];

		bx::mtxRotateZ(textRotMat, textRotation);
		bx::mtxTranslate(textCenterMat, -(textAreaWidth * 0.5f), (-visibleLineCount)*metrics.getLineHeight()*0.5f, 0);
		bx::mtxScale(textScaleMat, textScale, textScale, 1.0f);
		bx::mtxTranslate(screenCenterMat, ( (width) * 0.5f), ( (height) * 0.5f), 0);

		//first translate to text center, then scale, then rotate
		float tmpMat[16];
		bx::mtxMul(tmpMat, textCenterMat, textRotMat);

		float tmpMat2[16];
		bx::mtxMul(tmpMat2, tmpMat, textScaleMat);

		float tmpMat3[16];
		bx::mtxMul(tmpMat3, tmpMat2, screenCenterMat);

		// Set model matrix for rendering.
		bgfx::setTransform(tmpMat3);

		// Draw your text.
		textBufferManager->submitTextBuffer(scrollableBuffer, 0);

		// Advance to next frame. Rendering thread will be kicked to
		// process submitted rendering primitives.
		bgfx::frame();
	}

	imguiDestroy();

	free(bigText);

	fontManager->destroyTtf(font);
	// Destroy the fonts.
	fontManager->destroyFont(fontSdf);
	fontManager->destroyFont(fontScaled);

	textBufferManager->destroyTextBuffer(scrollableBuffer);

	delete textBufferManager;
	delete fontManager;

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
예제 #12
0
파일: nanovg.cpp 프로젝트: LSBOSS/bgfx
int _main_(int _argc, char** _argv)
{
	Args args(_argc, _argv);

	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_VSYNC;

	bgfx::init(args.m_type, args.m_pciId);
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
		, 0x303030ff
		, 1.0f
		, 0
		);

	imguiCreate();

	NVGcontext* nvg = nvgCreate(1, 0);
	bgfx::setViewSeq(0, true);

	DemoData data;
	loadDemoData(nvg, &data);

	bndSetFont(nvgCreateFont(nvg, "droidsans", "font/droidsans.ttf") );
	bndSetIconImage(nvgCreateImage(nvg, "images/blender_icons16.png", 0) );

	int64_t timeOffset = bx::getHPCounter();

	entry::MouseState mouseState;
	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		int64_t now = bx::getHPCounter();
		const double freq = double(bx::getHPFrequency() );
		float time = (float)( (now-timeOffset)/freq);

		// Set view 0 default viewport.
		bgfx::setViewRect(0, 0, 0, width, height);

		// This dummy draw call is here to make sure that view 0 is cleared
		// if no other draw calls are submitted to view 0.
		bgfx::touch(0);

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/20-nanovg");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: NanoVG is small antialiased vector graphics rendering library.");

		nvgBeginFrame(nvg, width, height, 1.0f);

		renderDemo(nvg, float(mouseState.m_mx), float(mouseState.m_my), float(width), float(height), time, 0, &data);

		nvgEndFrame(nvg);

		// Advance to next frame. Rendering thread will be kicked to
		// process submitted rendering primitives.
		bgfx::frame();
	}

	freeDemoData(nvg, &data);

	nvgDelete(nvg);

	imguiDestroy();

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
예제 #13
0
파일: hdr.cpp 프로젝트: Bewolf2/bgfx
int _main_(int /*_argc*/, char** /*_argv*/)
{
	PosColorTexCoord0Vertex::init();

	uint32_t width = 1280;
	uint32_t height = 720;
	uint32_t debug = BGFX_DEBUG_TEXT;
	uint32_t reset = BGFX_RESET_VSYNC;

	bgfx::init();
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT
		, 0x303030ff
		, 1.0f
		, 0
		);

	// Setup root path for binary shaders. Shader binaries are different 
	// for each renderer.
	switch (bgfx::getRendererType() )
	{
	default:
	case bgfx::RendererType::Direct3D9:
		s_shaderPath = "shaders/dx9/";
		s_texelHalf = 0.5f;
		break;

	case bgfx::RendererType::Direct3D11:
		s_shaderPath = "shaders/dx11/";
		break;

	case bgfx::RendererType::OpenGL:
		s_shaderPath = "shaders/glsl/";
		s_flipV = true;
		break;

	case bgfx::RendererType::OpenGLES2:
	case bgfx::RendererType::OpenGLES3:
		s_shaderPath = "shaders/gles/";
		s_flipV = true;
		break;
	}

	const bgfx::Memory* mem;

	mem = loadTexture("uffizi.dds");
	bgfx::TextureHandle uffizi = bgfx::createTexture(mem, BGFX_TEXTURE_U_CLAMP|BGFX_TEXTURE_V_CLAMP|BGFX_TEXTURE_W_CLAMP);

	bgfx::UniformHandle u_time      = bgfx::createUniform("u_time",     bgfx::UniformType::Uniform1f);
	bgfx::UniformHandle u_texCube   = bgfx::createUniform("u_texCube",  bgfx::UniformType::Uniform1i);
	bgfx::UniformHandle u_texColor  = bgfx::createUniform("u_texColor", bgfx::UniformType::Uniform1i);
	bgfx::UniformHandle u_texLum    = bgfx::createUniform("u_texLum",   bgfx::UniformType::Uniform1i);
	bgfx::UniformHandle u_texBlur   = bgfx::createUniform("u_texBlur",  bgfx::UniformType::Uniform1i);
	bgfx::UniformHandle u_mtx       = bgfx::createUniform("u_mtx",      bgfx::UniformType::Uniform4x4fv);
	bgfx::UniformHandle u_tonemap   = bgfx::createUniform("u_tonemap",  bgfx::UniformType::Uniform4fv);
	bgfx::UniformHandle u_offset    = bgfx::createUniform("u_offset",   bgfx::UniformType::Uniform4fv, 16);
	bgfx::UniformHandle u_weight    = bgfx::createUniform("u_weight",   bgfx::UniformType::Uniform4fv, 16);

	bgfx::ProgramHandle skyProgram     = loadProgram("vs_hdr_skybox",  "fs_hdr_skybox");
	bgfx::ProgramHandle lumProgram     = loadProgram("vs_hdr_lum",     "fs_hdr_lum");
	bgfx::ProgramHandle lumAvgProgram  = loadProgram("vs_hdr_lumavg",  "fs_hdr_lumavg");
	bgfx::ProgramHandle blurProgram    = loadProgram("vs_hdr_blur",    "fs_hdr_blur");
	bgfx::ProgramHandle brightProgram  = loadProgram("vs_hdr_bright",  "fs_hdr_bright");
	bgfx::ProgramHandle meshProgram    = loadProgram("vs_hdr_mesh",    "fs_hdr_mesh");
	bgfx::ProgramHandle tonemapProgram = loadProgram("vs_hdr_tonemap", "fs_hdr_tonemap");

	Mesh mesh;
	mesh.load("meshes/bunny.bin");

	bgfx::RenderTargetHandle rt = bgfx::createRenderTarget(width, height, BGFX_RENDER_TARGET_COLOR_RGBA8|BGFX_RENDER_TARGET_DEPTH);

	bgfx::RenderTargetHandle lum[5];
	lum[0] = bgfx::createRenderTarget(128, 128, BGFX_RENDER_TARGET_COLOR_RGBA8);
	lum[1] = bgfx::createRenderTarget( 64,  64, BGFX_RENDER_TARGET_COLOR_RGBA8);
	lum[2] = bgfx::createRenderTarget( 16,  16, BGFX_RENDER_TARGET_COLOR_RGBA8);
	lum[3] = bgfx::createRenderTarget(  4,   4, BGFX_RENDER_TARGET_COLOR_RGBA8);
	lum[4] = bgfx::createRenderTarget(  1,   1, BGFX_RENDER_TARGET_COLOR_RGBA8);

	bgfx::RenderTargetHandle bright;
	bright = bgfx::createRenderTarget(width/2, height/2, BGFX_RENDER_TARGET_COLOR_RGBA8);

	bgfx::RenderTargetHandle blur;
	blur = bgfx::createRenderTarget(width/8, height/8, BGFX_RENDER_TARGET_COLOR_RGBA8);

	FILE* file = fopen("font/droidsans.ttf", "rb");
	uint32_t size = (uint32_t)fsize(file);
	void* data = malloc(size);
	size_t ignore = fread(data, 1, size, file);
	BX_UNUSED(ignore);
	fclose(file);

	imguiCreate(data, size);

	free(data);

	float speed      = 0.37f;
	float middleGray = 0.18f;
	float white      = 1.1f;
	float treshold   = 1.5f;

	int32_t scrollArea = 0;

	uint32_t oldWidth = 0;
	uint32_t oldHeight = 0;

	entry::MouseState mouseState;

	float time = 0.0f;

	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		if (oldWidth != width
		||  oldHeight != height)
		{
			// Recreate variable size render targets when resolution changes.
			oldWidth = width;
			oldHeight = height;
			bgfx::destroyRenderTarget(rt);
			bgfx::destroyRenderTarget(bright);
			bgfx::destroyRenderTarget(blur);

			rt = bgfx::createRenderTarget(width, height, BGFX_RENDER_TARGET_COLOR_RGBA8|BGFX_RENDER_TARGET_DEPTH);
			bright = bgfx::createRenderTarget(width/2, height/2, BGFX_RENDER_TARGET_COLOR_RGBA8);
			blur = bgfx::createRenderTarget(width/8, height/8, BGFX_RENDER_TARGET_COLOR_RGBA8);
		}

		imguiBeginFrame(mouseState.m_mx
			, mouseState.m_my
			, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT  : 0)
			| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
			, 0
			, width
			, height
			);

		imguiBeginScrollArea("Settings", width - width / 5 - 10, 10, width / 5, height / 3, &scrollArea);
		imguiSeparatorLine();

		imguiSlider("Speed", &speed, 0.0f, 1.0f, 0.01f);
		imguiSeparator();

		imguiSlider("Middle gray", &middleGray, 0.1f, 1.0f, 0.01f);
		imguiSlider("White point", &white, 0.1f, 2.0f, 0.01f);
		imguiSlider("Treshold", &treshold, 0.1f, 2.0f, 0.01f);

		imguiEndScrollArea();
		imguiEndFrame();

		// This dummy draw call is here to make sure that view 0 is cleared
		// if no other draw calls are submitted to view 0.
		bgfx::submit(0);

		int64_t now = bx::getHPCounter();
		static int64_t last = now;
		const int64_t frameTime = now - last;
		last = now;
		const double freq = double(bx::getHPFrequency() );
		const double toMs = 1000.0/freq;

		time += (float)(frameTime*speed/freq);

		bgfx::setUniform(u_time, &time);

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/09-hdr");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Using multiple views and render targets.");
		bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);

		// Set views.
		bgfx::setViewRectMask(0x1f, 0, 0, width, height);
		bgfx::setViewRenderTargetMask(0x3, rt);

		bgfx::setViewRect(2, 0, 0, 128, 128);
		bgfx::setViewRenderTarget(2, lum[0]);

		bgfx::setViewRect(3, 0, 0, 64, 64);
		bgfx::setViewRenderTarget(3, lum[1]);

		bgfx::setViewRect(4, 0, 0, 16, 16);
		bgfx::setViewRenderTarget(4, lum[2]);

		bgfx::setViewRect(5, 0, 0, 4, 4);
		bgfx::setViewRenderTarget(5, lum[3]);

		bgfx::setViewRect(6, 0, 0, 1, 1);
		bgfx::setViewRenderTarget(6, lum[4]);

		bgfx::setViewRect(7, 0, 0, width/2, height/2);
		bgfx::setViewRenderTarget(7, bright);

		bgfx::setViewRect(8, 0, 0, width/8, height/8);
		bgfx::setViewRenderTarget(8, blur);

		bgfx::setViewRect(9, 0, 0, width, height);

		float view[16];
		float proj[16];

		mtxIdentity(view);
		mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);

		// Set view and projection matrix for view 0.
		bgfx::setViewTransformMask(0
				|(1<<0)
				|(1<<2)
				|(1<<3)
				|(1<<4)
				|(1<<5)
				|(1<<6)
				|(1<<7)
				|(1<<8)
				|(1<<9)
				, view
				, proj
				);

		float at[3] = { 0.0f, 1.0f, 0.0f };
		float eye[3] = { 0.0f, 1.0f, -2.5f };

		float mtx[16];
		mtxRotateXY(mtx
			, 0.0f
			, time
			); 

		float temp[4];
		vec3MulMtx(temp, eye, mtx);

		mtxLookAt(view, temp, at);
		mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);

		// Set view and projection matrix for view 1.
		bgfx::setViewTransformMask(1<<1, view, proj);

		bgfx::setUniform(u_mtx, mtx);

		// Render skybox into view 0.
		bgfx::setTexture(0, u_texCube, uffizi);
		bgfx::setProgram(skyProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width, (float)height, true);
		bgfx::submit(0);

		// Render mesh into view 1
		bgfx::setTexture(0, u_texCube, uffizi);
		mesh.submit(1, meshProgram, NULL);

		// Calculate luminance.
		setOffsets2x2Lum(u_offset, 128, 128);
		bgfx::setTexture(0, u_texColor, rt);
		bgfx::setProgram(lumProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(128.0f, 128.0f, s_flipV);
		bgfx::submit(2);

		// Downscale luminance 0.
		setOffsets4x4Lum(u_offset, 128, 128);
		bgfx::setTexture(0, u_texColor, lum[0]);
		bgfx::setProgram(lumAvgProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(64.0f, 64.0f, s_flipV);
		bgfx::submit(3);

		// Downscale luminance 1.
		setOffsets4x4Lum(u_offset, 64, 64);
		bgfx::setTexture(0, u_texColor, lum[1]);
		bgfx::setProgram(lumAvgProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(16.0f, 16.0f, s_flipV);
		bgfx::submit(4);

		// Downscale luminance 2.
		setOffsets4x4Lum(u_offset, 16, 16);
		bgfx::setTexture(0, u_texColor, lum[2]);
		bgfx::setProgram(lumAvgProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(4.0f, 4.0f, s_flipV);
		bgfx::submit(5);

		// Downscale luminance 3.
		setOffsets4x4Lum(u_offset, 4, 4);
		bgfx::setTexture(0, u_texColor, lum[3]);
		bgfx::setProgram(lumAvgProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad(1.0f, 1.0f, s_flipV);
		bgfx::submit(6);

		float tonemap[4] = { middleGray, square(white), treshold, 0.0f };
		bgfx::setUniform(u_tonemap, tonemap);

		// Bright pass treshold is tonemap[3].
		setOffsets4x4Lum(u_offset, width/2, height/2);
		bgfx::setTexture(0, u_texColor, rt);
		bgfx::setTexture(1, u_texLum, lum[4]);
		bgfx::setProgram(brightProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width/2.0f, (float)height/2.0f, s_flipV);
		bgfx::submit(7);

		// Blur bright pass vertically.
		bgfx::setTexture(0, u_texColor, bright);
		bgfx::setProgram(blurProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width/8.0f, (float)height/8.0f, s_flipV);
		bgfx::submit(8);

		// Blur bright pass horizontally, do tonemaping and combine.
		bgfx::setTexture(0, u_texColor, rt);
		bgfx::setTexture(1, u_texLum, lum[4]);
		bgfx::setTexture(2, u_texBlur, blur);
		bgfx::setProgram(tonemapProgram);
		bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
		screenSpaceQuad( (float)width, (float)height, s_flipV);
		bgfx::submit(9);

		// Advance to next frame. Rendering thread will be kicked to 
		// process submitted rendering primitives.
		bgfx::frame();
	}

	imguiDestroy();

	// Cleanup.
	mesh.unload();

	bgfx::destroyRenderTarget(lum[0]);
	bgfx::destroyRenderTarget(lum[1]);
	bgfx::destroyRenderTarget(lum[2]);
	bgfx::destroyRenderTarget(lum[3]);
	bgfx::destroyRenderTarget(lum[4]);
	bgfx::destroyRenderTarget(bright);
	bgfx::destroyRenderTarget(blur);
	bgfx::destroyRenderTarget(rt);

	bgfx::destroyProgram(meshProgram);
	bgfx::destroyProgram(skyProgram);
	bgfx::destroyProgram(tonemapProgram);
	bgfx::destroyProgram(lumProgram);
	bgfx::destroyProgram(lumAvgProgram);
	bgfx::destroyProgram(blurProgram);
	bgfx::destroyProgram(brightProgram);
	bgfx::destroyTexture(uffizi);

	bgfx::destroyUniform(u_time);
	bgfx::destroyUniform(u_texCube);
	bgfx::destroyUniform(u_texColor);
	bgfx::destroyUniform(u_texLum);
	bgfx::destroyUniform(u_texBlur);
	bgfx::destroyUniform(u_mtx);
	bgfx::destroyUniform(u_tonemap);
	bgfx::destroyUniform(u_offset);
	bgfx::destroyUniform(u_weight);

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}
예제 #14
0
파일: lod.cpp 프로젝트: jsimmons/bgfx
int _main_(int /*_argc*/, char** /*_argv*/)
{
    uint32_t width = 1280;
    uint32_t height = 720;
    uint32_t debug = BGFX_DEBUG_TEXT;
    uint32_t reset = BGFX_RESET_VSYNC;

    bgfx::init();
    bgfx::reset(width, height, reset);

    // Enable debug text.
    bgfx::setDebug(debug);

    // Set view 0 clear state.
    bgfx::setViewClear(0
                       , BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT
                       , 0x303030ff
                       , 1.0f
                       , 0
                      );

    // Setup root path for binary shaders. Shader binaries are different
    // for each renderer.
    switch (bgfx::getRendererType() )
    {
    default:
    case bgfx::RendererType::Direct3D9:
        s_shaderPath = "shaders/dx9/";
        break;

    case bgfx::RendererType::Direct3D11:
        s_shaderPath = "shaders/dx11/";
        break;

    case bgfx::RendererType::OpenGL:
        s_shaderPath = "shaders/glsl/";
        s_flipV = true;
        break;

    case bgfx::RendererType::OpenGLES2:
    case bgfx::RendererType::OpenGLES3:
        s_shaderPath = "shaders/gles/";
        s_flipV = true;
        break;
    }

    bgfx::UniformHandle u_texColor = bgfx::createUniform("u_texColor", bgfx::UniformType::Uniform1iv);
    bgfx::UniformHandle u_stipple = bgfx::createUniform("u_stipple", bgfx::UniformType::Uniform3fv);
    bgfx::UniformHandle u_texStipple = bgfx::createUniform("u_texStipple", bgfx::UniformType::Uniform1iv);

    bgfx::ProgramHandle program = loadProgram("vs_tree", "fs_tree");

    const bgfx::Memory* mem;
    mem = loadTexture("leafs1.dds");
    bgfx::TextureHandle textureLeafs = bgfx::createTexture(mem);

    mem = loadTexture("bark1.dds");
    bgfx::TextureHandle textureBark = bgfx::createTexture(mem);

    bgfx::TextureHandle textureStipple;

    const bgfx::Memory* stipple = bgfx::alloc(8*4);
    memset(stipple->data, 0, stipple->size);

    for (uint32_t ii = 0; ii < 32; ++ii)
    {
        stipple->data[knightTour[ii].m_y * 8 + knightTour[ii].m_x] = ii*4;
    }

    textureStipple = bgfx::createTexture2D(8, 4, 1, bgfx::TextureFormat::L8, BGFX_TEXTURE_MAG_POINT|BGFX_TEXTURE_MIN_POINT, stipple);

    Mesh mesh_top[3];
    mesh_top[0].load("meshes/tree1b_lod0_1.bin");
    mesh_top[1].load("meshes/tree1b_lod1_1.bin");
    mesh_top[2].load("meshes/tree1b_lod2_1.bin");

    Mesh mesh_trunk[3];
    mesh_trunk[0].load("meshes/tree1b_lod0_2.bin");
    mesh_trunk[1].load("meshes/tree1b_lod1_2.bin");
    mesh_trunk[2].load("meshes/tree1b_lod2_2.bin");

    FILE* file = fopen("font/droidsans.ttf", "rb");
    uint32_t size = (uint32_t)fsize(file);
    void* data = malloc(size);
    size_t ignore = fread(data, 1, size, file);
    BX_UNUSED(ignore);
    fclose(file);

    imguiCreate(data, size);

    free(data);

    int32_t scrollArea = 0;

    bool transitions = true;
    int transitionFrame = 0;
    int currLOD = 0;
    int targetLOD = 0;

    float at[3] = { 0.0f, 1.0f, 0.0f };
    float eye[3] = { 0.0f, 1.0f, -2.0f };

    entry::MouseState mouseState;
    while (!entry::processEvents(width, height, debug, reset, &mouseState) )
    {
        imguiBeginFrame(mouseState.m_mx
                        , mouseState.m_my
                        , (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT  : 0)
                        | (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
                        , 0
                        , width
                        , height
                       );

        imguiBeginScrollArea("Toggle transitions", width - width / 5 - 10, 10, width / 5, height / 6, &scrollArea);
        imguiSeparatorLine();

        if (imguiButton(transitions ? "ON" : "OFF") )
        {
            transitions = !transitions;
        }

        static float distance = 2.0f;
        imguiSlider("Distance", &distance, 2.0f, 6.0f, .01f);

        imguiEndScrollArea();
        imguiEndFrame();

        // Set view 0 default viewport.
        bgfx::setViewRect(0, 0, 0, width, height);

        // This dummy draw call is here to make sure that view 0 is cleared
        // if no other draw calls are submitted to view 0.
        bgfx::submit(0);

        int64_t now = bx::getHPCounter();
        static int64_t last = now;
        const int64_t frameTime = now - last;
        last = now;
        const double freq = double(bx::getHPFrequency() );
        const double toMs = 1000.0/freq;

        // Use debug font to print information about this example.
        bgfx::dbgTextClear();
        bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/12-lod");
        bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Mesh LOD transitions.");
        bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
        bgfx::dbgTextPrintf(0, 4, transitions ? 0x2f : 0x1f, transitions ? "Transitions on" : "Transitions off");

        eye[2] = -distance;

        float view[16];
        float proj[16];
        mtxLookAt(view, eye, at);
        mtxProj(proj, 60.0f, float(width)/float(height), 0.1f, 100.0f);

        // Set view and projection matrix for view 0.
        bgfx::setViewTransform(0, view, proj);

        float mtx[16];
        mtxIdentity(mtx);

        float stipple[3];
        float stippleInv[3];

        const int currentLODframe = transitions ? 32-transitionFrame : 32;
        const int mainLOD = transitions ? currLOD : targetLOD;

        stipple[0] = 0.0f;
        stipple[1] = -1.0f;
        stipple[2] = (float(currentLODframe)*4.0f/255.0f) - (1.0f/255.0f);

        stippleInv[0] = (float(31)*4.0f/255.0f);
        stippleInv[1] = 1.0f;
        stippleInv[2] = (float(transitionFrame)*4.0f/255.0f) - (1.0f/255.0f);

        bgfx::setTexture(0, u_texColor, textureBark);
        bgfx::setTexture(1, u_texStipple, textureStipple);
        bgfx::setUniform(u_stipple, stipple);
        mesh_trunk[mainLOD].submit(program, mtx, false);

        bgfx::setTexture(0, u_texColor, textureLeafs);
        bgfx::setTexture(1, u_texStipple, textureStipple);
        bgfx::setUniform(u_stipple, stipple);
        mesh_top[mainLOD].submit(program, mtx, true);

        if (transitions
                && (transitionFrame != 0) )
        {
            bgfx::setTexture(0, u_texColor, textureBark);
            bgfx::setTexture(1, u_texStipple, textureStipple);
            bgfx::setUniform(u_stipple, stippleInv);
            mesh_trunk[targetLOD].submit(program, mtx, false);

            bgfx::setTexture(0, u_texColor, textureLeafs);
            bgfx::setTexture(1, u_texStipple, textureStipple);
            bgfx::setUniform(u_stipple, stippleInv);
            mesh_top[targetLOD].submit(program, mtx, true);
        }

        int lod = 0;
        if (eye[2] < -2.5f)
        {
            lod = 1;
        }

        if (eye[2] < -5.0f)
        {
            lod = 2;
        }

        if (targetLOD!=lod)
        {
            if (targetLOD==currLOD)
            {
                targetLOD = lod;
            }
        }

        if (currLOD != targetLOD)
        {
            transitionFrame++;
        }

        if (transitionFrame>32)
        {
            currLOD = targetLOD;
            transitionFrame = 0;
        }

        // Advance to next frame. Rendering thread will be kicked to
        // process submitted rendering primitives.
        bgfx::frame();
    }

    for (uint32_t ii = 0; ii < 3; ++ii)
    {
        mesh_top[ii].unload();
        mesh_trunk[ii].unload();
    }

    // Cleanup.
    bgfx::destroyProgram(program);

    bgfx::destroyUniform(u_texColor);
    bgfx::destroyUniform(u_stipple);
    bgfx::destroyUniform(u_texStipple);

    bgfx::destroyTexture(textureStipple);
    bgfx::destroyTexture(textureLeafs);
    bgfx::destroyTexture(textureBark);

    // Shutdown bgfx.
    bgfx::shutdown();

    return 0;
}
예제 #15
0
int _main_(int /*_argc*/, char** /*_argv*/)
{
	uint32_t width  = 1280;
	uint32_t height = 720;
	uint32_t debug  = BGFX_DEBUG_TEXT;
	uint32_t reset  = BGFX_RESET_VSYNC;

	bgfx::init();
	bgfx::reset(width, height, reset);

	// Enable debug text.
	bgfx::setDebug(debug);

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
		, 0x303030ff
		, 1.0f
		, 0
		);

	const bgfx::Caps* caps = bgfx::getCaps();
	const bool computeSupported  = !!(caps->supported & BGFX_CAPS_COMPUTE);
	const bool indirectSupported = !!(caps->supported & BGFX_CAPS_DRAW_INDIRECT);

	if (computeSupported)
	{
		// Imgui.
		imguiCreate();

		bgfx::VertexDecl quadVertexDecl;
		quadVertexDecl.begin()
			.add(bgfx::Attrib::Position, 2, bgfx::AttribType::Float)
			.end();

		// Create static vertex buffer.
		bgfx::VertexBufferHandle vbh = bgfx::createVertexBuffer(
				// Static data can be passed with bgfx::makeRef
				bgfx::makeRef(s_quadVertices, sizeof(s_quadVertices) )
				, quadVertexDecl
				);

		// Create static index buffer.
		bgfx::IndexBufferHandle ibh = bgfx::createIndexBuffer(
				// Static data can be passed with bgfx::makeRef
				bgfx::makeRef(s_quadIndices, sizeof(s_quadIndices) )
				);

		// Create particle program from shaders.
		bgfx::ProgramHandle particleProgram = loadProgram("vs_particle", "fs_particle");

		// Setup compute buffers
		bgfx::VertexDecl computeVertexDecl;
		computeVertexDecl.begin()
			.add(bgfx::Attrib::TexCoord0, 4, bgfx::AttribType::Float)
			.end();

		const uint32_t threadGroupUpdateSize = 512;
		const uint32_t maxParticleCount = 32 * 1024;

		bgfx::DynamicVertexBufferHandle currPositionBuffer0 = bgfx::createDynamicVertexBuffer(1 << 15, computeVertexDecl, BGFX_BUFFER_COMPUTE_READ_WRITE);
		bgfx::DynamicVertexBufferHandle currPositionBuffer1 = bgfx::createDynamicVertexBuffer(1 << 15, computeVertexDecl, BGFX_BUFFER_COMPUTE_READ_WRITE);
		bgfx::DynamicVertexBufferHandle prevPositionBuffer0 = bgfx::createDynamicVertexBuffer(1 << 15, computeVertexDecl, BGFX_BUFFER_COMPUTE_READ_WRITE);
		bgfx::DynamicVertexBufferHandle prevPositionBuffer1 = bgfx::createDynamicVertexBuffer(1 << 15, computeVertexDecl, BGFX_BUFFER_COMPUTE_READ_WRITE);

		bgfx::UniformHandle u_params = bgfx::createUniform("u_params", bgfx::UniformType::Vec4, 3);

		bgfx::ProgramHandle initInstancesProgram   = bgfx::createProgram(loadShader("cs_init_instances"), true);
		bgfx::ProgramHandle updateInstancesProgram = bgfx::createProgram(loadShader("cs_update_instances"), true);

		bgfx::ProgramHandle indirectProgram       = BGFX_INVALID_HANDLE;
		bgfx::IndirectBufferHandle indirectBuffer = BGFX_INVALID_HANDLE;

		if (indirectSupported)
		{
			indirectProgram = bgfx::createProgram(loadShader("cs_indirect"), true);
			indirectBuffer  = bgfx::createIndirectBuffer(2);
		}

		u_paramsDataStruct u_paramsData;
		InitializeParams(0, &u_paramsData);

		bgfx::setUniform(u_params, &u_paramsData, 3);
		bgfx::setBuffer(0, prevPositionBuffer0, bgfx::Access::Write);
		bgfx::setBuffer(1, currPositionBuffer0, bgfx::Access::Write);
		bgfx::dispatch(0, initInstancesProgram, maxParticleCount / threadGroupUpdateSize, 1, 1);

		float view[16];
		float initialPos[3] = { 0.0f, 0.0f, -45.0f };
		cameraCreate();
		cameraSetPosition(initialPos);
		cameraSetVerticalAngle(0.0f);
		cameraGetViewMtx(view);

		int32_t scrollArea = 0;

		bool useIndirect = false;

		entry::MouseState mouseState;
		while (!entry::processEvents(width, height, debug, reset, &mouseState) )
		{
			int64_t now = bx::getHPCounter();
			static int64_t last = now;
			const int64_t frameTime = now - last;
			last = now;
			const double freq = double(bx::getHPFrequency() );
			const float deltaTime = float(frameTime/freq);

			if (deltaTime > 1000.0)
			{
				abort();
			}

			// Set view 0 default viewport.
			bgfx::setViewRect(0, 0, 0, width, height);

			// Use debug font to print information about this example.
			bgfx::dbgTextClear();
			bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/24-nbody");
			bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: N-body simulation with compute shaders using buffers.");

			imguiBeginFrame(mouseState.m_mx
					, mouseState.m_my
					, (mouseState.m_buttons[entry::MouseButton::Left  ] ? IMGUI_MBUT_LEFT  : 0)
					| (mouseState.m_buttons[entry::MouseButton::Right ] ? IMGUI_MBUT_RIGHT : 0)
					, mouseState.m_mz
					, width
					, height
					);
			imguiBeginScrollArea("Settings", width - width / 4 - 10, 10, width / 4, 500, &scrollArea);
			imguiSlider("Random seed", u_paramsData.baseSeed, 0, 100);
			int32_t shape = imguiChoose(u_paramsData.initialShape, "Point", "Sphere", "Box", "Donut");
			imguiSlider("Initial speed", u_paramsData.initialSpeed, 0.0f, 300.0f, 0.1f);
			bool defaults = imguiButton("Reset");
			imguiSeparatorLine();
			imguiSlider("Particle count (x512)", u_paramsData.dispatchSize, 1, 64);
			imguiSlider("Gravity", u_paramsData.gravity, 0.0f, 0.3f, 0.001f);
			imguiSlider("Damping", u_paramsData.damping, 0.0f, 1.0f, 0.01f);
			imguiSlider("Max acceleration", u_paramsData.maxAccel, 0.0f, 100.0f, 0.01f);
			imguiSlider("Time step", u_paramsData.timeStep, 0.0f, 0.02f, 0.0001f);
			imguiSeparatorLine();
			imguiSlider("Particle intensity", u_paramsData.particleIntensity, 0.0f, 1.0f, 0.001f);
			imguiSlider("Particle size", u_paramsData.particleSize, 0.0f, 1.0f, 0.001f);
			imguiSlider("Particle power", u_paramsData.particlePower, 0.001f, 16.0f, 0.01f);
			imguiSeparatorLine();
			if (imguiCheck("Use draw/dispatch indirect", useIndirect, indirectSupported) )
			{
				useIndirect = !useIndirect;
			}
			imguiEndScrollArea();
			imguiEndFrame();

			// Modify parameters and reset if shape is changed
			if (shape != u_paramsData.initialShape)
			{
				defaults = true;
				InitializeParams(shape, &u_paramsData);
			}

			if (defaults)
			{
				bgfx::setBuffer(0, prevPositionBuffer0, bgfx::Access::Write);
				bgfx::setBuffer(1, currPositionBuffer0, bgfx::Access::Write);
				bgfx::setUniform(u_params, &u_paramsData, 3);
				bgfx::dispatch(0, initInstancesProgram, maxParticleCount / threadGroupUpdateSize, 1, 1);
			}

			if (useIndirect)
			{
				bgfx::setUniform(u_params, &u_paramsData, 3);
				bgfx::setBuffer(0, indirectBuffer, bgfx::Access::Write);
				bgfx::dispatch(0, indirectProgram);
			}

			bgfx::setBuffer(0, prevPositionBuffer0, bgfx::Access::Read);
			bgfx::setBuffer(1, currPositionBuffer0, bgfx::Access::Read);
			bgfx::setBuffer(2, prevPositionBuffer1, bgfx::Access::Write);
			bgfx::setBuffer(3, currPositionBuffer1, bgfx::Access::Write);
			bgfx::setUniform(u_params, &u_paramsData, 3);

			if (useIndirect)
			{
				bgfx::dispatch(0, updateInstancesProgram, indirectBuffer, 1);
			}
			else
			{
				bgfx::dispatch(0, updateInstancesProgram, u_paramsData.dispatchSize, 1, 1);
			}

			bx::xchg(currPositionBuffer0, currPositionBuffer1);
			bx::xchg(prevPositionBuffer0, prevPositionBuffer1);

			// Update camera.
			cameraUpdate(deltaTime, mouseState);
			cameraGetViewMtx(view);

			// Set view and projection matrix for view 0.
			const bgfx::HMD* hmd = bgfx::getHMD();
			if (NULL != hmd && 0 != (hmd->flags & BGFX_HMD_RENDERING) )
			{
				float viewHead[16];
				float eye[3] = {};
				bx::mtxQuatTranslationHMD(viewHead, hmd->eye[0].rotation, eye);

				float tmp[16];
				bx::mtxMul(tmp, view, viewHead);

				float proj[16];
				bx::mtxProj(proj, hmd->eye[0].fov, 0.1f, 10000.0f);

				bgfx::setViewTransform(0, tmp, proj);

				// Set view 0 default viewport.
				//
				// Use HMD's width/height since HMD's internal frame buffer size
				// might be much larger than window size.
				bgfx::setViewRect(0, 0, 0, hmd->width, hmd->height);
			}
			else
			{
				float proj[16];
				bx::mtxProj(proj, 90.0f, float(width)/float(height), 0.1f, 10000.0f);
				bgfx::setViewTransform(0, view, proj);

				// Set view 0 default viewport.
				bgfx::setViewRect(0, 0, 0, width, height);
			}

			// Set vertex and index buffer.
			bgfx::setVertexBuffer(vbh);
			bgfx::setIndexBuffer(ibh);
			bgfx::setInstanceDataBuffer(currPositionBuffer0, 0, u_paramsData.dispatchSize * threadGroupUpdateSize);

			// Set render states.
			bgfx::setState(0
					| BGFX_STATE_RGB_WRITE
					| BGFX_STATE_BLEND_ADD
					| BGFX_STATE_DEPTH_TEST_ALWAYS
					);

			// Submit primitive for rendering to view 0.
			if (useIndirect)
			{
				bgfx::submit(0, particleProgram, indirectBuffer, 0);
			}
			else
			{
				bgfx::submit(0, particleProgram);
			}

			// Advance to next frame. Rendering thread will be kicked to
			// process submitted rendering primitives.
			bgfx::frame();
		}

		// Cleanup.
		cameraDestroy();
		imguiDestroy();

		if (indirectSupported)
		{
			bgfx::destroyProgram(indirectProgram);
			bgfx::destroyIndirectBuffer(indirectBuffer);
		}


		bgfx::destroyUniform(u_params);
		bgfx::destroyDynamicVertexBuffer(currPositionBuffer0);
		bgfx::destroyDynamicVertexBuffer(currPositionBuffer1);
		bgfx::destroyDynamicVertexBuffer(prevPositionBuffer0);
		bgfx::destroyDynamicVertexBuffer(prevPositionBuffer1);
		bgfx::destroyProgram(updateInstancesProgram);
		bgfx::destroyProgram(initInstancesProgram);
		bgfx::destroyIndexBuffer(ibh);
		bgfx::destroyVertexBuffer(vbh);
		bgfx::destroyProgram(particleProgram);
	}
	else
	{
		int64_t timeOffset = bx::getHPCounter();

		entry::MouseState mouseState;
		while (!entry::processEvents(width, height, debug, reset, &mouseState) )
		{
			int64_t now = bx::getHPCounter();
			float time = (float)( (now - timeOffset)/double(bx::getHPFrequency() ) );

			bgfx::setViewRect(0, 0, 0, width, height);

			bgfx::dbgTextClear();
			bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/24-nbody");
			bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: N-body simulation with compute shaders using buffers.");

			bool blink = uint32_t(time*3.0f)&1;
			bgfx::dbgTextPrintf(0, 5, blink ? 0x1f : 0x01, " Compute is not supported by GPU. ");

			bgfx::touch(0);
			bgfx::frame();
		}
	}

	// Shutdown bgfx.
	bgfx::shutdown();

	return 0;
}