Пример #1
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_NONE;

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

	// 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;
	}

	// Create vertex stream declaration.
	s_PosColorTexCoord0Decl.begin();
	s_PosColorTexCoord0Decl.add(bgfx::Attrib::Position, 3, bgfx::AttribType::Float);
	s_PosColorTexCoord0Decl.add(bgfx::Attrib::Color0, 4, bgfx::AttribType::Uint8, true);
	s_PosColorTexCoord0Decl.add(bgfx::Attrib::TexCoord0, 2, bgfx::AttribType::Float);
	s_PosColorTexCoord0Decl.end();  

	bgfx::UniformHandle u_time = bgfx::createUniform("u_time", bgfx::UniformType::Uniform1f);
	bgfx::UniformHandle u_mtx = bgfx::createUniform("u_mtx", bgfx::UniformType::Uniform4x4fv);
	bgfx::UniformHandle u_lightDir = bgfx::createUniform("u_lightDir", bgfx::UniformType::Uniform3fv);

	bgfx::ProgramHandle raymarching = loadProgram("vs_raymarching", "fs_raymarching");

	while (!processEvents(width, height, debug, reset) )
	{
		// Set view 0 default viewport.
		bgfx::setViewRect(0, 0, 0, width, height);

		// Set view 1 default viewport.
		bgfx::setViewRect(1, 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 viewZ 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/03-raymarch");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Updating shader uniforms.");
		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, -15.0f };
		
		float view[16];
		float proj[16];
		mtxLookAt(view, eye, at);
		mtxProj(proj, 60.0f, 16.0f/9.0f, 0.1f, 100.0f);

		// Set view and projection matrix for view 1.
		bgfx::setViewTransform(0, view, proj);

		float ortho[16];
		mtxOrtho(ortho, 0.0f, 1280.0f, 720.0f, 0.0f, 0.0f, 100.0f);

		// Set view and projection matrix for view 0.
		bgfx::setViewTransform(1, NULL, ortho);

		float time = (float)(bx::getHPCounter()/double(bx::getHPFrequency() ) );

		float vp[16];
		mtxMul(vp, view, proj);

		float mtx[16];
		mtxRotateXY(mtx
			, time
			, time*0.37f
			); 

		float mtxInv[16];
		mtxInverse(mtxInv, mtx);
		float lightDirModel[4] = { -0.4f, -0.5f, -1.0f, 0.0f };
		float lightDirModelN[4];
		vec3Norm(lightDirModelN, lightDirModel);
		float lightDir[4];
		vec4MulMtx(lightDir, lightDirModelN, mtxInv);
		bgfx::setUniform(u_lightDir, lightDir);

		float mvp[16];
		mtxMul(mvp, mtx, vp);

		float invMvp[16];
		mtxInverse(invMvp, mvp);
		bgfx::setUniform(u_mtx, invMvp);

		bgfx::setUniform(u_time, &time);

		renderScreenSpaceQuad(1, raymarching, 0.0f, 0.0f, 1280.0f, 720.0f);

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

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

	bgfx::destroyUniform(u_time);
	bgfx::destroyUniform(u_mtx);
	bgfx::destroyUniform(u_lightDir);

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

	return 0;
}
Пример #2
0
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_NONE;

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

	// 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::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_RGBA|BGFX_RENDER_TARGET_DEPTH|BGFX_RENDER_TARGET_MSAA_X8);

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

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

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

	uint32_t oldWidth = 0;
	uint32_t oldHeight = 0;

	while (!processEvents(width, height, debug, reset) )
	{
		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_RGBA|BGFX_RENDER_TARGET_DEPTH|BGFX_RENDER_TARGET_MSAA_X8);
			bright = bgfx::createRenderTarget(width/2, height/2, BGFX_RENDER_TARGET_COLOR_RGBA);
			blur = bgfx::createRenderTarget(width/8, height/8, BGFX_RENDER_TARGET_COLOR_RGBA);
		}

		// 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;

		float time = (float)(now/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*0.37f
			); 

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

		mtxLookAt(view, temp, at);
		mtxProj(proj, 60.0f, 16.0f/9.0f, 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] = { 0.18f, square(1.1f), 1.5f, 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();
	}

	// 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;
}
Пример #3
0
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);

	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;
	uint32_t oldReset = reset;

	entry::MouseState mouseState;

	float time = 0.0f;

	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.
		bgfx::setViewRectMask(0x1f, 0, 0, width, height);
		bgfx::setViewFrameBufferMask(0x3, 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];

		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);
		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_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, 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_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, 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_flipV);
		bgfx::submit(9);

		// Advance to next frame. Rendering thread will be kicked to 
		// process submitted rendering primitives.
		bgfx::frame();
	}
Пример #4
0
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:
	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::OpenGLES:
		s_shaderPath = "shaders/gles/";
		s_flipV = true;
		break;
	}

	// Imgui.
	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);

	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.
		mtxLookAt(view, eye, at);
		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.
		mtxIdentity(view);
		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];
					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;
}
Пример #5
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);

	// 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;
	}

	// Uniforms.
	u_shadowMap = bgfx::createUniform("u_shadowMap", bgfx::UniformType::Uniform1iv);

	bgfx::UniformHandle u_lightPos = bgfx::createUniform("u_lightPos", bgfx::UniformType::Uniform4fv);
	bgfx::UniformHandle u_lightMtx = bgfx::createUniform("u_lightMtx", bgfx::UniformType::Uniform4x4fv);

	// Programs.
	bgfx::ProgramHandle progPackDepth = loadProgram("vs_smsimple_packdepth", "fs_smsimple_packdepth");
	bgfx::ProgramHandle progDraw      = loadProgram("vs_smsimple_draw",      "fs_smsimple_draw");

	// Vertex declarations.
	bgfx::VertexDecl PosNormalDecl;
	PosNormalDecl.begin();
	PosNormalDecl.add(bgfx::Attrib::Position,  3, bgfx::AttribType::Float);
	PosNormalDecl.add(bgfx::Attrib::Normal,    4, bgfx::AttribType::Uint8, true, true);
	PosNormalDecl.end();

	// Meshes.
	Mesh bunnyMesh;
	Mesh cubeMesh;
	Mesh hollowcubeMesh;
	Mesh hplaneMesh;
	bunnyMesh.load("meshes/bunny.bin");
	cubeMesh.load("meshes/cube.bin");
	hollowcubeMesh.load("meshes/hollowcube.bin");
	hplaneMesh.load(s_hplaneVertices, s_numHPlaneVertices, PosNormalDecl, s_planeIndices, s_numPlaneIndices);

	// Render targets.
	uint16_t shadowMapSize = 512;

	bgfx::TextureHandle fbtextures[] =
	{
		bgfx::createTexture2D(shadowMapSize, shadowMapSize, 1, bgfx::TextureFormat::BGRA8, BGFX_TEXTURE_RT),
		bgfx::createTexture2D(shadowMapSize, shadowMapSize, 1, bgfx::TextureFormat::D16, BGFX_TEXTURE_RT_BUFFER_ONLY),
	};
	s_shadowMapFB = bgfx::createFrameBuffer(BX_COUNTOF(fbtextures), fbtextures, true);

	// Set view and projection matrices.
	float view[16];
	float proj[16];

	const float eye[3] = { 0.0f, 30.0f, -60.0f };
	const float at[3]  = { 0.0f, 5.0f, 0.0f };
	mtxLookAt(view, eye, at);

	const float aspect = float(int32_t(width) ) / float(int32_t(height) );
	mtxProj(proj, 60.0f, aspect, 0.1f, 1000.0f);

	// Time acumulators.
	float timeAccumulatorLight = 0.0f;
	float timeAccumulatorScene = 0.0f;

	entry::MouseState mouseState;
	while (!entry::processEvents(width, height, debug, reset, &mouseState) )
	{
		// Time.
		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);

		// Update time accumulators.
		timeAccumulatorLight += deltaTime;
		timeAccumulatorScene += deltaTime;

		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/15-shadowmaps-simple");
		bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Shadow maps example.");
		bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);

		// Setup lights.
		float lightPos[4];
		lightPos[0] = -cos(timeAccumulatorLight);
		lightPos[1] = -1.0f;
		lightPos[2] = -sin(timeAccumulatorLight);
		lightPos[3] = 0.0f;

		bgfx::setUniform(u_lightPos, lightPos);

		// Setup instance matrices.
		float mtxFloor[16];
		mtxScaleRotateTranslate(mtxFloor
			, 30.0f //scaleX
			, 30.0f //scaleY
			, 30.0f //scaleZ
			, 0.0f  //rotX
			, 0.0f  //rotY
			, 0.0f  //rotZ
			, 0.0f  //translateX
			, 0.0f  //translateY
			, 0.0f  //translateZ
			);

		float mtxBunny[16];
		mtxScaleRotateTranslate(mtxBunny
			, 5.0f
			, 5.0f
			, 5.0f
			, 0.0f
			, float(M_PI) - timeAccumulatorScene
			, 0.0f
			, 15.0f
			, 5.0f
			, 0.0f
			);

		float mtxHollowcube[16];
		mtxScaleRotateTranslate(mtxHollowcube
			, 2.5f
			, 2.5f
			, 2.5f
			, 0.0f
			, 1.56f - timeAccumulatorScene
			, 0.0f
			, 0.0f
			, 10.0f
			, 0.0f
			);

		float mtxCube[16];
		mtxScaleRotateTranslate(mtxCube
			, 2.5f
			, 2.5f
			, 2.5f
			, 0.0f
			, 1.56f - timeAccumulatorScene
			, 0.0f
			, -15.0f
			, 5.0f
			, 0.0f
			);

		// Define matrices.
		float screenView[16];
		float screenProj[16];
		mtxIdentity(screenView);
		mtxOrtho(screenProj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);

		float lightView[16];
		float lightProj[16];

		const float eye[3] =
		{
			-lightPos[0],
			-lightPos[1],
			-lightPos[2],
		};
		const float at[3] = { 0.0f, 0.0f, 0.0f };
		mtxLookAt(lightView, eye, at);

		const float area = 30.0f;
		mtxOrtho(lightProj, -area, area, -area, area, -100.0f, 100.0f);

		bgfx::setViewRect(RENDER_SHADOW_PASS_ID, 0, 0, shadowMapSize, shadowMapSize);
		bgfx::setViewRect(RENDER_SCENE_PASS_ID, 0, 0, width, height);

		bgfx::setViewTransform(RENDER_SHADOW_PASS_ID, lightView, lightProj);
		bgfx::setViewTransform(RENDER_SCENE_PASS_ID, view, proj);

		bgfx::setViewFrameBuffer(RENDER_SHADOW_PASS_ID, s_shadowMapFB);

		// Clear backbuffer and shadowmap framebuffer at beginning.
		bgfx::setViewClearMask(0x3, BGFX_CLEAR_COLOR_BIT | BGFX_CLEAR_DEPTH_BIT, 0x303030ff, 1.0f, 0);
		bgfx::submitMask(0x3);

		// Render.

		{ // Craft shadow map.

			hplaneMesh.submit(RENDER_SHADOW_PASS_ID, mtxFloor, progPackDepth);
			bunnyMesh.submit(RENDER_SHADOW_PASS_ID, mtxBunny, progPackDepth);
			hollowcubeMesh.submit(RENDER_SHADOW_PASS_ID, mtxHollowcube, progPackDepth);
			cubeMesh.submit(RENDER_SHADOW_PASS_ID, mtxCube, progPackDepth);
		}

		{ // Draw Scene.

			float mtxShadow[16]; //lightviewProjCrop
			float lightMtx[16];  //modelLightviewProjCrop

			const float s = (s_flipV) ? 1.0f : -1.0f; //sign

			const float mtxCrop[16] =
			{
				0.5f,   0.0f, 0.0f, 0.0f,
				0.0f, s*0.5f, 0.0f, 0.0f,
				0.0f,   0.0f, 0.5f, 0.0f,
				0.5f,   0.5f, 0.5f, 1.0f,
			};

			float mtxTmp[16];
			mtxMul(mtxTmp, lightProj, mtxCrop);
			mtxMul(mtxShadow, lightView, mtxTmp);

			// Floor.
			mtxMul(lightMtx, mtxFloor, mtxShadow);
			bgfx::setUniform(u_lightMtx, lightMtx);
			hplaneMesh.submit(RENDER_SCENE_PASS_ID, mtxFloor, progDraw);

			// Bunny.
			mtxMul(lightMtx, mtxBunny, mtxShadow);
			bgfx::setUniform(u_lightMtx, lightMtx);
			bunnyMesh.submit(RENDER_SCENE_PASS_ID, mtxBunny, progDraw);

			// Hollow cube.
			mtxMul(lightMtx, mtxHollowcube, mtxShadow);
			bgfx::setUniform(u_lightMtx, lightMtx);
			hollowcubeMesh.submit(RENDER_SCENE_PASS_ID, mtxHollowcube, progDraw);

			// Cube.
			mtxMul(lightMtx, mtxCube, mtxShadow);
			bgfx::setUniform(u_lightMtx, lightMtx);
			cubeMesh.submit(RENDER_SCENE_PASS_ID, mtxCube, progDraw);
		}

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

	}

	bunnyMesh.unload();
	cubeMesh.unload();
	hollowcubeMesh.unload();
	hplaneMesh.unload();

	bgfx::destroyProgram(progPackDepth);
	bgfx::destroyProgram(progDraw);

	bgfx::destroyFrameBuffer(s_shadowMapFB);

	bgfx::destroyUniform(u_shadowMap);
	bgfx::destroyUniform(u_lightPos);
	bgfx::destroyUniform(u_lightMtx);

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

	return 0;
}
Пример #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 = 0;

	bgfx::init();

	bgfx::reset(width, height);

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

	// Set view 0 clear state.
	bgfx::setViewClear(0
		, BGFX_CLEAR_COLOR_BIT|BGFX_CLEAR_DEPTH_BIT
		//, 0x303030ff
		//, 0xffffffff
		, 0x000000FF
		, 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/";
		break;

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

	//init the text rendering system
	bgfx_font::FontManager* fontManager = new bgfx_font::FontManager(512);
	bgfx_font::TextBufferManager* textBufferManager = new bgfx_font::TextBufferManager(fontManager);
	textBufferManager->init(s_shaderPath);

	//load a truetype files
	bgfx_font::TrueTypeHandle times_tt = fontManager->loadTrueTypeFromFile("c:/windows/fonts/times.ttf");	
	bgfx_font::FontHandle distance_font = fontManager->createFontByPixelSize(times_tt, 0, 48, bgfx_font::FONT_TYPE_DISTANCE_SUBPIXEL);
	//preload glyph and generate (generate bitmap's)
	fontManager->preloadGlyph(distance_font, L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. \n");

	uint32_t fontsCount = 0;
	bgfx_font::FontHandle fonts[64];
	fonts[fontsCount++] = distance_font;
	//generate various sub distance field fonts at various size
	int step=4;
	for(int i = 64; i>1 ; i-=step)
	{		
		if(i<32) step = 2;
		//instantiate a usable font
		bgfx_font::FontHandle font = fontManager->createScaledFontToPixelSize(distance_font, i);
		fonts[fontsCount++] = font;
	}
	//You can unload the truetype files at this stage, but in that case, the set of glyph's will be limited to the set of preloaded glyph
	fontManager->unloadTrueType(times_tt);
			
	bgfx_font::TextBufferHandle staticText = textBufferManager->createTextBuffer(bgfx_font::FONT_TYPE_DISTANCE_SUBPIXEL, bgfx_font::STATIC);
	
	textBufferManager->setPenPosition(staticText, 10.0f, 10.0f);	
	/*
	for(size_t i = 0; i< fontsCount; ++i)
	{
		textBufferManager->appendText(staticText, fonts[i], L"aqkAQg");
		//textBufferManager->appendText(staticText, fonts[i], L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\n");
		
	}	
	textBufferManager->appendText(staticText, fonts[0], "\n");
	*/
	textBufferManager->setTextColor(staticText, 0xFFFFFFFF);
	//textBufferManager->setTextColor(staticText, 0x000000FF);
	for(size_t i = 0; i< fontsCount; ++i)
	{
		//textBufferManager->setPenPosition(staticText, 3.0f+ (float)i*0.3f,0);
		//textBufferManager->appendText(staticText, fonts[16], L"The quick brown fox jumps over the lazy dog\n");		
		textBufferManager->appendText(staticText, fonts[i], L"The quick brown fox jumps over the lazy dog\n");		
		//textBufferManager->appendText(staticText, fonts[i], L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\n");
	}	
		
    while (!processEvents(width, height, debug, reset) )
	{
		// 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;
		float time = (float)(bx::getHPCounter()/double(bx::getHPFrequency() ) );
		
		// Use debug font to print information about this example.
		bgfx::dbgTextClear();
		//bgfx::dbgTextPrintf(0, 1, 0x4f, "bgfx/examples/00-helloworld");
		//bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Initialization and debug text.");
		//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];
		float proj[16];
		mtxLookAt(view, eye, at);		
		float centering = 0.5f;
		//setup a top-left ortho matrix for screen space drawing
		mtxOrtho(proj, centering, width+centering,height+centering, centering,-1.0f, 1.0f);		
		
		// Set view and projection matrix for view 0.
		bgfx::setViewTransform(0, view, proj);				
		
		//draw your text
		textBufferManager->submitTextBuffer(staticText, 0);	

        // Advance to next frame. Rendering thread will be kicked to 
		// process submitted rendering primitives.
		bgfx::frame();
		//just to prevent my CG Fan to howl
		Sleep(2);
	}

	//destroy the fonts
	for(size_t i=0; i<fontsCount;++i)
	{
		fontManager->destroyFont(fonts[i]);
	}
	
	textBufferManager->destroyTextBuffer(staticText);
	delete textBufferManager;
	delete fontManager;	
	// Shutdown bgfx.
    bgfx::shutdown();

	return 0;
}
Пример #7
0
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;
}
Пример #8
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_BIT | BGFX_CLEAR_DEPTH_BIT
		, 0x303030ff
		, 1.0f
		, 0
		);

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

	// Load some TTF files.
	const char* fontNames[7] =
	{
		"font/droidsans.ttf",
		"font/chp-fire.ttf",
		"font/bleeding_cowboys.ttf",
		"font/mias_scribblings.ttf",
		"font/ruritania.ttf",
		"font/signika-regular.ttf",
		"font/five_minutes.otf"
	};

	const uint32_t fontCount = countof(fontNames);

	TrueTypeHandle fontFiles[fontCount];
	FontHandle fonts[fontCount];
	for (uint32_t ii = 0; ii < fontCount; ++ii)
	{
		// Instantiate a usable font.
		fontFiles[ii] = loadTtf(fontManager, fontNames[ii]);
		fonts[ii] = fontManager->createFontByPixelSize(fontFiles[ii], 0, 32);

		// Preload glyphs and blit them to atlas.
		fontManager->preloadGlyph(fonts[ii], L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ. \n");

		// You can unload the truetype files at this stage, but in that 
		// case, the set of glyph's will be limited to the set of preloaded 
		// glyph.
		fontManager->destroyTtf(fontFiles[ii]);
	}

	TrueTypeHandle console_tt = loadTtf(fontManager, "font/visitor1.ttf");

	// This font doesn't have any preloaded glyph's but the truetype file 
	// is loaded so glyph will be generated as needed.
	FontHandle consola_16 = fontManager->createFontByPixelSize(console_tt, 0, 10);

	//create a static text buffer compatible with alpha font
	//a static text buffer content cannot be modified after its first submit.
	TextBufferHandle staticText = textBufferManager->createTextBuffer(FONT_TYPE_ALPHA, BufferType::Static);

	// The pen position represent the top left of the box of the first line 
	// of text.
	textBufferManager->setPenPosition(staticText, 24.0f, 100.0f);

	for (uint32_t ii = 0; ii < fontCount; ++ii)
	{
		// Add some text to the buffer.
		// The position of the pen is adjusted when there is an endline.
		textBufferManager->appendText(staticText, fonts[ii], L"The quick brown fox jumps over the lazy dog\n");
	}

	// Now write some styled text.

	// Setup style colors.
	textBufferManager->setBackgroundColor(staticText, 0x551111FF);
	textBufferManager->setUnderlineColor(staticText, 0xFF2222FF);
	textBufferManager->setOverlineColor(staticText, 0x2222FFFF);
	textBufferManager->setStrikeThroughColor(staticText, 0x22FF22FF);

	// Background.
	textBufferManager->setStyle(staticText, STYLE_BACKGROUND);
	textBufferManager->appendText(staticText, fonts[0], L"The quick ");

	// Strike-through.
	textBufferManager->setStyle(staticText, STYLE_STRIKE_THROUGH);
	textBufferManager->appendText(staticText, fonts[0], L"brown fox ");

	// Overline.
	textBufferManager->setStyle(staticText, STYLE_OVERLINE);
	textBufferManager->appendText(staticText, fonts[0], L"jumps over ");

	// Underline.
	textBufferManager->setStyle(staticText, STYLE_UNDERLINE);
	textBufferManager->appendText(staticText, fonts[0], L"the lazy ");

	// Background + strike-through.
	textBufferManager->setStyle(staticText, STYLE_BACKGROUND | STYLE_STRIKE_THROUGH);
	textBufferManager->appendText(staticText, fonts[0], L"dog\n");

	// Create a transient buffer for real-time data.
	TextBufferHandle transientText = textBufferManager->createTextBuffer(FONT_TYPE_ALPHA, BufferType::Transient);

	while (!processEvents(width, height, debug, reset) )
	{
		// 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 transient text to display debug information.
		wchar_t fpsText[64];
		bx::swnprintf(fpsText, countof(fpsText), L"Frame: % 7.3f[ms]", double(frameTime) * toMs);

		textBufferManager->clearTextBuffer(transientText);
		textBufferManager->setPenPosition(transientText, 20.0, 4.0f);
		textBufferManager->appendText(transientText, consola_16, L"bgfx/examples/10-font\n");
		textBufferManager->appendText(transientText, consola_16, L"Description: Use the font system to display text and styled text.\n");
		textBufferManager->appendText(transientText, consola_16, fpsText);

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

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

		// Setup a top-left ortho matrix for screen space drawing.
		float centering = 0.5f;
		mtxOrtho(proj, centering, width + centering, height + centering, centering, -1.0f, 1.0f);

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

		// Submit the debug text.
		textBufferManager->submitTextBuffer(transientText, 0);

		// Submit the static text.
		textBufferManager->submitTextBuffer(staticText, 0);

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

	fontManager->destroyTtf(console_tt);

	// Destroy the fonts.
	fontManager->destroyFont(consola_16);
	for (uint32_t ii = 0; ii < fontCount; ++ii)
	{
		fontManager->destroyFont(fonts[ii]);
	}

	textBufferManager->destroyTextBuffer(staticText);
	textBufferManager->destroyTextBuffer(transientText);

	delete textBufferManager;
	delete fontManager;

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

	return 0;
}