示例#1
0
// Updated transforms
void PolygonSortModelRenderer::UpdateModelData(CModel* model, void* data, int updateflags)
{
    PSModel* psmdl = (PSModel*)data;

    if (updateflags & (RENDERDATA_UPDATE_VERTICES|RENDERDATA_UPDATE_COLOR))
    {
        CModelDefPtr mdef = model->GetModelDef();
        size_t numVertices = mdef->GetNumVertices();

        // build vertices

        // allocate working space for computing normals
        if (numVertices > m->normalsNumVertices)
        {
            rtl_FreeAligned(m->normals);

            size_t newSize = round_up_to_pow2(numVertices);
            m->normals = (char*)rtl_AllocateAligned(newSize*16, 16);
            m->normalsNumVertices = newSize;
        }

        VertexArrayIterator<CVector3D> Position = psmdl->m_Position.GetIterator<CVector3D>();
        VertexArrayIterator<CVector3D> Normal = VertexArrayIterator<CVector3D>(m->normals, 16);

        ModelRenderer::BuildPositionAndNormals(model, Position, Normal);

        VertexArrayIterator<SColor4ub> Color = psmdl->m_Color.GetIterator<SColor4ub>();

        ModelRenderer::BuildColor4ub(model, Normal, Color);

        // upload everything to vertex buffer
        psmdl->m_Array.Upload();
    }

    // resort model indices from back to front, according to the view camera position - and store
    // the returned sqrd distance to the centre of the nearest triangle
    // Use the view camera instead of the cull camera because:
    //  a) polygon sorting implicitly uses the view camera (and changing that would be costly)
    //  b) using the cull camera is likely not interesting from a debugging POV
    PROFILE_START( "sorting transparent" );

    CMatrix3D worldToCam;
    g_Renderer.GetViewCamera().m_Orientation.GetInverse(worldToCam);

    psmdl->BackToFrontIndexSort(worldToCam);
    PROFILE_END( "sorting transparent" );
}
示例#2
0
//////////////////////////////////////////////////////////////////////////
// Create the shadow map
void ShadowMapInternals::CreateTexture()
{
	// Cleanup
	if (Texture)
	{
		glDeleteTextures(1, &Texture);
		Texture = 0;
	}
	if (DummyTexture)
	{
		glDeleteTextures(1, &DummyTexture);
		DummyTexture = 0;
	}
	if (Framebuffer)
	{
		pglDeleteFramebuffersEXT(1, &Framebuffer);
		Framebuffer = 0;
	}

	pglGenFramebuffersEXT(1, &Framebuffer);

	if (g_Renderer.m_ShadowMapSize != 0)
	{
		// non-default option to override the size
		Width = Height = g_Renderer.m_ShadowMapSize;
	}
	else
	{
		// get shadow map size as next power of two up from view width and height
		Width = (int)round_up_to_pow2((unsigned)g_Renderer.GetWidth());
		Height = (int)round_up_to_pow2((unsigned)g_Renderer.GetHeight());
	}
	// Clamp to the maximum texture size
	Width = std::min(Width, (int)ogl_max_tex_size);
	Height = std::min(Height, (int)ogl_max_tex_size);

	// Since we're using a framebuffer object, the whole texture is available
	EffectiveWidth = Width;
	EffectiveHeight = Height;

	const char* formatname;

	switch(DepthTextureBits)
	{
	case 16: formatname = "DEPTH_COMPONENT16"; break;
	case 24: formatname = "DEPTH_COMPONENT24"; break;
	case 32: formatname = "DEPTH_COMPONENT32"; break;
	default: formatname = "DEPTH_COMPONENT"; break;
	}

	LOGMESSAGE(L"Creating shadow texture (size %dx%d) (format = %hs)",
		Width, Height, formatname);


	if (g_Renderer.m_Options.m_ShadowAlphaFix)
	{
		glGenTextures(1, &DummyTexture);
		g_Renderer.BindTexture(0, DummyTexture);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, Width, Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
	}

	glGenTextures(1, &Texture);
	g_Renderer.BindTexture(0, Texture);

	GLenum format;

	switch(DepthTextureBits)
	{
	case 16: format = GL_DEPTH_COMPONENT16; break;
	case 24: format = GL_DEPTH_COMPONENT24; break;
	case 32: format = GL_DEPTH_COMPONENT32; break;
	default: format = GL_DEPTH_COMPONENT; break;
	}

	glTexImage2D(GL_TEXTURE_2D, 0, format, Width, Height, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);

	glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);

	// set texture parameters
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER, GL_LINEAR);

	// bind to framebuffer object
	glBindTexture(GL_TEXTURE_2D, 0);
	pglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, Framebuffer);

	pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, Texture, 0);

	if (g_Renderer.m_Options.m_ShadowAlphaFix)
	{
		pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, DummyTexture, 0);
	}
	else
	{
		glDrawBuffer(GL_NONE);
	}

	glReadBuffer(GL_NONE);

	GLenum status = pglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);

	pglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);

	if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
	{
		LOGWARNING(L"Framebuffer object incomplete: %04d", status);

		// Disable shadow rendering (but let the user try again if they want)
		g_Renderer.m_Options.m_Shadows = false;
	}

	FilterOffsets[0] = -0.4f/Width;
	FilterOffsets[1] = 1.0f/Height;

	FilterOffsets[2] = -1.0f/Width;
	FilterOffsets[3] = -0.4f/Height;

	FilterOffsets[4] = 0.4f/Width;
	FilterOffsets[5] = -1.0f/Height;

	FilterOffsets[6] = 1.0f/Width;
	FilterOffsets[7] = 0.4f/Height;
}
示例#3
0
///////////////////////////////////////////////////////////////////
// Progressive load of water textures
int WaterManager::LoadWaterTextures()
{
	// TODO: this doesn't need to be progressive-loading any more
	// (since texture loading is async now)

	wchar_t pathname[PATH_MAX];
	
	// Load diffuse grayscale images (for non-fancy water)
	for (size_t i = 0; i < ARRAY_SIZE(m_WaterTexture); ++i)
	{
		swprintf_s(pathname, ARRAY_SIZE(pathname), L"art/textures/animated/water/default/diffuse%02d.dds", (int)i+1);
		CTextureProperties textureProps(pathname);
		textureProps.SetWrap(GL_REPEAT);

		CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
		texture->Prefetch();
		m_WaterTexture[i] = texture;
	}

	if (!g_Renderer.GetCapabilities().m_PrettyWater)
	{
		// Enable rendering, now that we've succeeded this far
		m_RenderWater = true;
		return 0;
	}

#if CONFIG2_GLES
#warning Fix WaterManager::LoadWaterTextures on GLES
#else
	// Load normalmaps (for fancy water)
	for (size_t i = 0; i < ARRAY_SIZE(m_NormalMap); ++i)
	{
		swprintf_s(pathname, ARRAY_SIZE(pathname), L"art/textures/animated/water/%ls/normal00%02d.png", m_WaterType.c_str(), (int)i+1);
		CTextureProperties textureProps(pathname);
		textureProps.SetWrap(GL_REPEAT);
		textureProps.SetMaxAnisotropy(4);
		
		CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
		texture->Prefetch();
		m_NormalMap[i] = texture;
	}
	
	// Load CoastalWaves
	{
		CTextureProperties textureProps(L"art/textures/terrain/types/water/coastalWave.png");
		textureProps.SetWrap(GL_REPEAT);
		CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
		texture->Prefetch();
		m_WaveTex = texture;
	}
	
	// Load Foam
	{
		CTextureProperties textureProps(L"art/textures/terrain/types/water/foam.png");
		textureProps.SetWrap(GL_REPEAT);
		CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
		texture->Prefetch();
		m_FoamTex = texture;
	}
	
	// Use screen-sized textures for minimum artifacts.
	m_RefTextureSize = g_Renderer.GetHeight();
	
	m_RefTextureSize = round_up_to_pow2(m_RefTextureSize);
	
	// Create reflection texture
	glGenTextures(1, &m_ReflectionTexture);
	glBindTexture(GL_TEXTURE_2D, m_ReflectionTexture);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
	glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA8, (GLsizei)m_RefTextureSize, (GLsizei)m_RefTextureSize, 0,  GL_RGBA, GL_UNSIGNED_BYTE, 0);
	
	// Create refraction texture
	glGenTextures(1, &m_RefractionTexture);
	glBindTexture(GL_TEXTURE_2D, m_RefractionTexture);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
	glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB8, (GLsizei)m_RefTextureSize, (GLsizei)m_RefTextureSize, 0,  GL_RGB, GL_UNSIGNED_BYTE, 0);

	// Create depth textures
	glGenTextures(1, &m_ReflFboDepthTexture);
	glBindTexture(GL_TEXTURE_2D, m_ReflFboDepthTexture);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
	glTexImage2D( GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT32, (GLsizei)m_RefTextureSize, (GLsizei)m_RefTextureSize, 0,  GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NULL);
	
	glGenTextures(1, &m_RefrFboDepthTexture);
	glBindTexture(GL_TEXTURE_2D, m_RefrFboDepthTexture);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
	glTexImage2D( GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT32, (GLsizei)m_RefTextureSize, (GLsizei)m_RefTextureSize, 0,  GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NULL);

	// Create the Fancy Effects texture
	glGenTextures(1, &m_FancyTextureNormal);
	glBindTexture(GL_TEXTURE_2D, m_FancyTextureNormal);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

	glGenTextures(1, &m_FancyTextureOther);
	glBindTexture(GL_TEXTURE_2D, m_FancyTextureOther);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

	glGenTextures(1, &m_FancyTextureDepth);
	glBindTexture(GL_TEXTURE_2D, m_FancyTextureDepth);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

	glBindTexture(GL_TEXTURE_2D, 0);

	Resize();

	// Create the water framebuffers

	GLint currentFbo;
	glGetIntegerv(GL_FRAMEBUFFER_BINDING_EXT, &currentFbo);

	m_ReflectionFbo = 0;
	pglGenFramebuffersEXT(1, &m_ReflectionFbo);
	pglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_ReflectionFbo);
	pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, m_ReflectionTexture, 0);
	pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, m_ReflFboDepthTexture, 0);

	ogl_WarnIfError();
	
	GLenum status = pglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
	if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
	{
		LOGWARNING("Reflection framebuffer object incomplete: 0x%04X", status);
		g_Renderer.m_Options.m_WaterReflection = false;
	}

	m_RefractionFbo = 0;
	pglGenFramebuffersEXT(1, &m_RefractionFbo);
	pglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_RefractionFbo);
	pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, m_RefractionTexture, 0);
	pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, m_RefrFboDepthTexture, 0);

	ogl_WarnIfError();
	
	status = pglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
	if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
	{
		LOGWARNING("Refraction framebuffer object incomplete: 0x%04X", status);
		g_Renderer.m_Options.m_WaterRefraction = false;
	}
	
	pglGenFramebuffersEXT(1, &m_FancyEffectsFBO);
	pglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, m_FancyEffectsFBO);
	pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, m_FancyTextureNormal, 0);
	pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_2D, m_FancyTextureOther, 0);
	pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, m_FancyTextureDepth, 0);
	
	ogl_WarnIfError();
	
	status = pglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
	if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
	{
		LOGWARNING("Fancy Effects framebuffer object incomplete: 0x%04X", status);
		g_Renderer.m_Options.m_WaterRefraction = false;
	}
	
	pglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, currentFbo);

	// Enable rendering, now that we've succeeded this far
	m_RenderWater = true;
#endif
	return 0;
}
示例#4
0
文件: MiniMap.cpp 项目: stev47/0ad
void CMiniMap::Draw()
{
	PROFILE3("render minimap");

	// The terrain isn't actually initialized until the map is loaded, which
	// happens when the game is started, so abort until then.
	if(!(GetGUI() && g_Game && g_Game->IsGameStarted()))
		return;

	CSimulation2* sim = g_Game->GetSimulation2();
	CmpPtr<ICmpRangeManager> cmpRangeManager(*sim, SYSTEM_ENTITY);
	ENSURE(cmpRangeManager);

	// Set our globals in case they hadn't been set before
	m_Camera      = g_Game->GetView()->GetCamera();
	m_Terrain     = g_Game->GetWorld()->GetTerrain();
	m_Width  = (u32)(m_CachedActualSize.right - m_CachedActualSize.left);
	m_Height = (u32)(m_CachedActualSize.bottom - m_CachedActualSize.top);
	m_MapSize = m_Terrain->GetVerticesPerSide();
	m_TextureSize = (GLsizei)round_up_to_pow2((size_t)m_MapSize);
	m_MapScale = (cmpRangeManager->GetLosCircular() ? 1.f : 1.414f);

	if(!m_TerrainTexture || g_GameRestarted)
		CreateTextures();


	// only update 2x / second
	// (note: since units only move a few pixels per second on the minimap,
	// we can get away with infrequent updates; this is slow)
	static double last_time;
	const double cur_time = timer_Time();
	if(cur_time - last_time > 0.5)
	{
		last_time = cur_time;

		if(m_TerrainDirty)
			RebuildTerrainTexture();
	}

	glMatrixMode(GL_PROJECTION);
	glPushMatrix();
	glLoadIdentity();
	glMatrixMode(GL_MODELVIEW);
	glPushMatrix();
	CMatrix3D matrix = GetDefaultGuiMatrix();
	glLoadMatrixf(&matrix._11);

	// Disable depth updates to prevent apparent z-fighting-related issues
	// with some drivers causing units to get drawn behind the texture
	glDepthMask(0);

	const float x = m_CachedActualSize.left, y = m_CachedActualSize.bottom;
	const float x2 = m_CachedActualSize.right, y2 = m_CachedActualSize.top;
	const float z = GetBufferedZ();
	const float texCoordMax = (float)(m_MapSize - 1) / (float)m_TextureSize;
	const float angle = GetAngle();

	// Draw the main textured quad
	g_Renderer.BindTexture(0, m_TerrainTexture);
	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	DrawTexture(texCoordMax, angle, x, y, x2, y2, z);


	// Draw territory boundaries
	CTerritoryTexture& territoryTexture = g_Game->GetView()->GetTerritoryTexture();
	territoryTexture.BindTexture(0);
	glEnable(GL_BLEND);
	glMatrixMode(GL_TEXTURE);
	glLoadMatrixf(territoryTexture.GetMinimapTextureMatrix());
	glMatrixMode(GL_MODELVIEW);

	DrawTexture(1.0f, angle, x, y, x2, y2, z);

	glMatrixMode(GL_TEXTURE);
	glLoadIdentity();
	glMatrixMode(GL_MODELVIEW);
	glDisable(GL_BLEND);


	// Draw the LOS quad in black, using alpha values from the LOS texture
	CLOSTexture& losTexture = g_Game->GetView()->GetLOSTexture();
	losTexture.BindTexture(0);
	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
	glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
	glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PRIMARY_COLOR_ARB);
	glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
	glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
	glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);
	glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_ONE_MINUS_SRC_ALPHA);
	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glColor3f(0.0f, 0.0f, 0.0f);

	glMatrixMode(GL_TEXTURE);
	glLoadMatrixf(losTexture.GetMinimapTextureMatrix());
	glMatrixMode(GL_MODELVIEW);

	DrawTexture(1.0f, angle, x, y, x2, y2, z);

	glMatrixMode(GL_TEXTURE);
	glLoadIdentity();
	glMatrixMode(GL_MODELVIEW);

	glDisable(GL_BLEND);

	// Set up the matrix for drawing points and lines
	glPushMatrix();
	glTranslatef(x, y, z);
	// Rotate around the center of the map
	glTranslatef((x2-x)/2.f, (y2-y)/2.f, 0.f);
	// Scale square maps to fit in circular minimap area
	float unitScale = (cmpRangeManager->GetLosCircular() ? 1.f : m_MapScale/2.f);
	glScalef(unitScale, unitScale, 1.f);
	glRotatef(angle * 180.f/M_PI, 0.f, 0.f, 1.f);
	glTranslatef(-(x2-x)/2.f, -(y2-y)/2.f, 0.f);

	PROFILE_START("minimap units");

	// Don't enable GL_POINT_SMOOTH because it's far too slow
	// (~70msec/frame on a GF4 rendering a thousand points)
	glPointSize(3.f);

	float sx = (float)m_Width / ((m_MapSize - 1) * TERRAIN_TILE_SIZE);
	float sy = (float)m_Height / ((m_MapSize - 1) * TERRAIN_TILE_SIZE);

	CSimulation2::InterfaceList ents = sim->GetEntitiesWithInterface(IID_Minimap);

	std::vector<MinimapUnitVertex> vertexArray;
	vertexArray.reserve(ents.size());

	for (CSimulation2::InterfaceList::const_iterator it = ents.begin(); it != ents.end(); ++it)
	{
		MinimapUnitVertex v;
		ICmpMinimap* cmpMinimap = static_cast<ICmpMinimap*>(it->second);
		entity_pos_t posX, posZ;
		if (cmpMinimap->GetRenderData(v.r, v.g, v.b, posX, posZ))
		{
			ICmpRangeManager::ELosVisibility vis = cmpRangeManager->GetLosVisibility(it->first, g_Game->GetPlayerID());
			if (vis != ICmpRangeManager::VIS_HIDDEN)
			{
				v.a = 255;
				v.x = posX.ToFloat()*sx;
				v.y = -posZ.ToFloat()*sy;
				vertexArray.push_back(v);
			}
		}
	}

	if (!vertexArray.empty())
	{
		glEnableClientState(GL_VERTEX_ARRAY);
		glEnableClientState(GL_COLOR_ARRAY);
		glVertexPointer(2, GL_FLOAT, sizeof(MinimapUnitVertex), &vertexArray[0].x);
		glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(MinimapUnitVertex), &vertexArray[0].r);

		glDrawArrays(GL_POINTS, 0, (GLsizei)vertexArray.size());

		glDisableClientState(GL_COLOR_ARRAY);
		glDisableClientState(GL_VERTEX_ARRAY);
	}

	PROFILE_END("minimap units");

	DrawViewRect();

	glPopMatrix();


	glMatrixMode(GL_PROJECTION);
	glPopMatrix();
	glMatrixMode(GL_MODELVIEW);
	glPopMatrix();

	// Reset everything back to normal
	glPointSize(1.0f);
	glEnable(GL_TEXTURE_2D);
	glDepthMask(1);
}
示例#5
0
// TODO: render the minimap in a framebuffer and just draw the frambuffer texture
//	most of the time, updating the framebuffer twice a frame.
// Here it updates as ping-pong either texture or vertex array each sec to lower gpu stalling
// (those operations cause a gpu sync, which slows down the way gpu works)
void CMiniMap::Draw()
{
	PROFILE3("render minimap");

	// The terrain isn't actually initialized until the map is loaded, which
	// happens when the game is started, so abort until then.
	if(!(GetGUI() && g_Game && g_Game->IsGameStarted()))
		return;

	CSimulation2* sim = g_Game->GetSimulation2();
	CmpPtr<ICmpRangeManager> cmpRangeManager(*sim, SYSTEM_ENTITY);
	ENSURE(cmpRangeManager);

	// Set our globals in case they hadn't been set before
	m_Camera      = g_Game->GetView()->GetCamera();
	m_Terrain     = g_Game->GetWorld()->GetTerrain();
	m_Width  = (u32)(m_CachedActualSize.right - m_CachedActualSize.left);
	m_Height = (u32)(m_CachedActualSize.bottom - m_CachedActualSize.top);
	m_MapSize = m_Terrain->GetVerticesPerSide();
	m_TextureSize = (GLsizei)round_up_to_pow2((size_t)m_MapSize);
	m_MapScale = (cmpRangeManager->GetLosCircular() ? 1.f : 1.414f);

	if(!m_TerrainTexture || g_GameRestarted)
		CreateTextures();


	// only update 2x / second
	// (note: since units only move a few pixels per second on the minimap,
	// we can get away with infrequent updates; this is slow)
	// TODO: store frequency in a config file?
	static double last_time;
	const double cur_time = timer_Time();
	const bool doUpdate = cur_time - last_time > 0.5;
	if(doUpdate)
	{	
		last_time = cur_time;
		if(m_TerrainDirty)
			RebuildTerrainTexture();
	}

	glMatrixMode(GL_PROJECTION);
	glPushMatrix();
	glLoadIdentity();
	glMatrixMode(GL_MODELVIEW);
	glPushMatrix();
	CMatrix3D matrix = GetDefaultGuiMatrix();
	glLoadMatrixf(&matrix._11);

	// Disable depth updates to prevent apparent z-fighting-related issues
	// with some drivers causing units to get drawn behind the texture
	glDepthMask(0);
	
	CShaderProgramPtr shader;
	CShaderTechniquePtr tech;
	
	if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
	{
		CShaderDefines defines;
		defines.Add(str_MINIMAP_BASE, str_1);
		tech = g_Renderer.GetShaderManager().LoadEffect(str_minimap, g_Renderer.GetSystemShaderDefines(), defines);
		tech->BeginPass();
		shader = tech->GetShader();
	}

	const float x = m_CachedActualSize.left, y = m_CachedActualSize.bottom;
	const float x2 = m_CachedActualSize.right, y2 = m_CachedActualSize.top;
	const float z = GetBufferedZ();
	const float texCoordMax = (float)(m_MapSize - 1) / (float)m_TextureSize;
	const float angle = GetAngle();

	// Draw the main textured quad
	if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
		shader->BindTexture(str_baseTex, m_TerrainTexture);
	else
		g_Renderer.BindTexture(0, m_TerrainTexture);
	
	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	DrawTexture(shader, texCoordMax, angle, x, y, x2, y2, z);


	// Draw territory boundaries
	CTerritoryTexture& territoryTexture = g_Game->GetView()->GetTerritoryTexture();
	
	if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
		shader->BindTexture(str_baseTex, territoryTexture.GetTexture());
	else
		territoryTexture.BindTexture(0);
	
	glEnable(GL_BLEND);
	glMatrixMode(GL_TEXTURE);
	glLoadMatrixf(territoryTexture.GetMinimapTextureMatrix());
	glMatrixMode(GL_MODELVIEW);

	DrawTexture(shader, 1.0f, angle, x, y, x2, y2, z);

	glMatrixMode(GL_TEXTURE);
	glLoadIdentity();
	glMatrixMode(GL_MODELVIEW);
	glDisable(GL_BLEND);


	// Draw the LOS quad in black, using alpha values from the LOS texture
	CLOSTexture& losTexture = g_Game->GetView()->GetLOSTexture();
	
	if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
	{
		tech->EndPass();

		CShaderDefines defines;
		defines.Add(str_MINIMAP_LOS, str_1);
		tech = g_Renderer.GetShaderManager().LoadEffect(str_minimap, g_Renderer.GetSystemShaderDefines(), defines);
		tech->BeginPass();
		shader = tech->GetShader();
		shader->BindTexture(str_baseTex, losTexture.GetTexture());
	}
	else
	{
		losTexture.BindTexture(0);
	}
	
	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
	glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
	glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PRIMARY_COLOR_ARB);
	glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
	glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_REPLACE);
	glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);
	glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_ONE_MINUS_SRC_ALPHA);
	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glColor3f(0.0f, 0.0f, 0.0f);

	glMatrixMode(GL_TEXTURE);
	glLoadMatrixf(losTexture.GetMinimapTextureMatrix());
	glMatrixMode(GL_MODELVIEW);

	DrawTexture(shader, 1.0f, angle, x, y, x2, y2, z);

	glMatrixMode(GL_TEXTURE);
	glLoadIdentity();
	glMatrixMode(GL_MODELVIEW);

	glDisable(GL_BLEND);
	
	if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
	{
		tech->EndPass();

		CShaderDefines defines;
		defines.Add(str_MINIMAP_POINT, str_1);
		tech = g_Renderer.GetShaderManager().LoadEffect(str_minimap, g_Renderer.GetSystemShaderDefines(), defines);
		tech->BeginPass();
		shader = tech->GetShader();
	}
	
	// Set up the matrix for drawing points and lines
	glPushMatrix();
	glTranslatef(x, y, z);
	// Rotate around the center of the map
	glTranslatef((x2-x)/2.f, (y2-y)/2.f, 0.f);
	// Scale square maps to fit in circular minimap area
	float unitScale = (cmpRangeManager->GetLosCircular() ? 1.f : m_MapScale/2.f);
	glScalef(unitScale, unitScale, 1.f);
	glRotatef(angle * 180.f/M_PI, 0.f, 0.f, 1.f);
	glTranslatef(-(x2-x)/2.f, -(y2-y)/2.f, 0.f);

	PROFILE_START("minimap units");


	const float sx = (float)m_Width / ((m_MapSize - 1) * TERRAIN_TILE_SIZE);
	const float sy = (float)m_Height / ((m_MapSize - 1) * TERRAIN_TILE_SIZE);

	CSimulation2::InterfaceList ents = sim->GetEntitiesWithInterface(IID_Minimap);

	if (doUpdate)
	{

		VertexArrayIterator<float[2]> attrPos = m_AttributePos.GetIterator<float[2]>();
		VertexArrayIterator<u8[4]> attrColor = m_AttributeColor.GetIterator<u8[4]>();

		m_EntitiesDrawn = 0;
		MinimapUnitVertex v;
		std::vector<MinimapUnitVertex> pingingVertices;
		pingingVertices.reserve(MAX_ENTITIES_DRAWN/2);

		const double time = timer_Time();

		if (time > m_NextBlinkTime)
		{
			m_BlinkState = !m_BlinkState;
			m_NextBlinkTime = time + m_HalfBlinkDuration;
		}

		entity_pos_t posX, posZ;
		for (CSimulation2::InterfaceList::const_iterator it = ents.begin(); it != ents.end(); ++it)
		{
			ICmpMinimap* cmpMinimap = static_cast<ICmpMinimap*>(it->second);
			if (cmpMinimap->GetRenderData(v.r, v.g, v.b, posX, posZ))
			{
				ICmpRangeManager::ELosVisibility vis = cmpRangeManager->GetLosVisibility(it->first, g_Game->GetPlayerID());
				if (vis != ICmpRangeManager::VIS_HIDDEN)
				{
					v.a = 255;
					v.x = posX.ToFloat()*sx;
					v.y = -posZ.ToFloat()*sy;
					
					// Check minimap pinging to indicate something
					if (m_BlinkState && cmpMinimap->CheckPing(time, m_PingDuration))
					{
						v.r = 255; // ping color is white
						v.g = 255;
						v.b = 255;

						pingingVertices.push_back(v);
					}
					else
					{
						addVertex(v, attrColor, attrPos);
						++m_EntitiesDrawn;
					}
				}
			}
		}

		// Add the pinged vertices at the end, so they are drawn on top
		for (size_t v = 0; v < pingingVertices.size(); ++v)
		{
			addVertex(pingingVertices[v], attrColor, attrPos);
			++m_EntitiesDrawn;
		}

		ENSURE(m_EntitiesDrawn < MAX_ENTITIES_DRAWN);
		m_VertexArray.Upload();
	}

	if (m_EntitiesDrawn > 0)
	{		
		// Don't enable GL_POINT_SMOOTH because it's far too slow
		// (~70msec/frame on a GF4 rendering a thousand points)
		glPointSize(3.f);

		u8* indexBase = m_IndexArray.Bind();
		u8* base = m_VertexArray.Bind();
		const GLsizei stride = (GLsizei)m_VertexArray.GetStride();

		if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
		{
			shader->VertexPointer(2, GL_FLOAT, stride, base + m_AttributePos.offset);
			shader->ColorPointer(4, GL_UNSIGNED_BYTE, stride, base + m_AttributeColor.offset);
			shader->AssertPointersBound();
		}
		else
		{	
			glEnableClientState(GL_VERTEX_ARRAY);
			glEnableClientState(GL_COLOR_ARRAY);

			glDisable(GL_TEXTURE_2D);
			glVertexPointer(2, GL_FLOAT, stride, base + m_AttributePos.offset);
			glColorPointer(4, GL_UNSIGNED_BYTE, stride, base + m_AttributeColor.offset);
		}
		
		if (!g_Renderer.m_SkipSubmit)
		{
			glDrawElements(GL_POINTS, (GLsizei)(m_EntitiesDrawn), GL_UNSIGNED_SHORT, indexBase);
		}

		
		g_Renderer.GetStats().m_DrawCalls++;
		CVertexBuffer::Unbind();
	}

	PROFILE_END("minimap units");

	if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
	{
		tech->EndPass();

		CShaderDefines defines;
		defines.Add(str_MINIMAP_LINE, str_1);
		tech = g_Renderer.GetShaderManager().LoadEffect(str_minimap, g_Renderer.GetSystemShaderDefines(), defines);
		tech->BeginPass();
		shader = tech->GetShader();
	}
	else
	{
		glEnable(GL_TEXTURE_2D);
		glDisableClientState(GL_VERTEX_ARRAY);
		glDisableClientState(GL_COLOR_ARRAY);
	}

	DrawViewRect();

	glPopMatrix();
	
	glMatrixMode(GL_PROJECTION);
	glPopMatrix();
	glMatrixMode(GL_MODELVIEW);
	glPopMatrix();
	
	if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
	{
		tech->EndPass();
	}

	// Reset everything back to normal
	glPointSize(1.0f);
	glEnable(GL_TEXTURE_2D);
	glDepthMask(1);
}
示例#6
0
//////////////////////////////////////////////////////////////////////////
// Create the shadow map
void ShadowMapInternals::CreateTexture()
{
	// Cleanup
	if (Texture)
	{
		glDeleteTextures(1, &Texture);
		Texture = 0;
	}
	if (DummyTexture)
	{
		glDeleteTextures(1, &DummyTexture);
		DummyTexture = 0;
	}
	if (Framebuffer)
	{
		pglDeleteFramebuffersEXT(1, &Framebuffer);
		Framebuffer = 0;
	}

	pglGenFramebuffersEXT(1, &Framebuffer);

	if (g_Renderer.m_ShadowMapSize != 0)
	{
		// non-default option to override the size
		Width = Height = g_Renderer.m_ShadowMapSize;
	}
	else
	{
		// get shadow map size as next power of two up from view width/height
		Width = Height = (int)round_up_to_pow2((unsigned)std::max(g_Renderer.GetWidth(), g_Renderer.GetHeight()));
	}
	// Clamp to the maximum texture size
	Width = std::min(Width, (int)ogl_max_tex_size);
	Height = std::min(Height, (int)ogl_max_tex_size);

	// Since we're using a framebuffer object, the whole texture is available
	EffectiveWidth = Width;
	EffectiveHeight = Height;

	const char* formatname;

	switch(DepthTextureBits)
	{
	case 16: formatname = "DEPTH_COMPONENT16"; break;
	case 24: formatname = "DEPTH_COMPONENT24"; break;
	case 32: formatname = "DEPTH_COMPONENT32"; break;
	default: formatname = "DEPTH_COMPONENT"; break;
	}

	LOGMESSAGE(L"Creating shadow texture (size %dx%d) (format = %hs)",
		Width, Height, formatname);


	if (g_Renderer.m_Options.m_ShadowAlphaFix)
	{
		glGenTextures(1, &DummyTexture);
		g_Renderer.BindTexture(0, DummyTexture);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, Width, Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
	}

	glGenTextures(1, &Texture);
	g_Renderer.BindTexture(0, Texture);

	GLenum format;

#if CONFIG2_GLES
	format = GL_DEPTH_COMPONENT;
#else
	switch (DepthTextureBits)
	{
	case 16: format = GL_DEPTH_COMPONENT16; break;
	case 24: format = GL_DEPTH_COMPONENT24; break;
	case 32: format = GL_DEPTH_COMPONENT32; break;
	default: format = GL_DEPTH_COMPONENT; break;
	}
#endif

	glTexImage2D(GL_TEXTURE_2D, 0, format, Width, Height, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, NULL);
	// GLES requires type == UNSIGNED_SHORT or UNSIGNED_INT

	// set texture parameters
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);

#if CONFIG2_GLES
	// GLES doesn't do depth comparisons, so treat it as a
	// basic unfiltered depth texture
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
#else
	// Enable automatic depth comparisons
	glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_TEXTURE_MODE, GL_INTENSITY);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL);

	// Use GL_LINEAR to trigger automatic PCF on some devices
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
#endif

	ogl_WarnIfError();

	// bind to framebuffer object
	glBindTexture(GL_TEXTURE_2D, 0);
	pglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, Framebuffer);

	pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, Texture, 0);

	if (g_Renderer.m_Options.m_ShadowAlphaFix)
	{
		pglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, DummyTexture, 0);
	}
	else
	{
#if CONFIG2_GLES
#warning TODO: figure out whether the glDrawBuffer/glReadBuffer stuff is needed, since it is not supported by GLES
#else
		glDrawBuffer(GL_NONE);
#endif
	}

#if !CONFIG2_GLES
	glReadBuffer(GL_NONE);
#endif

	ogl_WarnIfError();

	GLenum status = pglCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);

	pglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);

	if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
	{
		LOGWARNING(L"Framebuffer object incomplete: 0x%04X", status);

		// Disable shadow rendering (but let the user try again if they want)
		g_Renderer.m_Options.m_Shadows = false;
	}
}
示例#7
0
///////////////////////////////////////////////////////////////////
// Progressive load of water textures
int WaterManager::LoadWaterTextures()
{
	// TODO: this doesn't need to be progressive-loading any more
	// (since texture loading is async now)

	// TODO: add a member variable and setter for this. (can't make this
	// a parameter because this function is called via delay-load code)
	static const wchar_t* const water_type = L"default";

	wchar_t pathname[PATH_MAX];

	// Load diffuse grayscale images (for non-fancy water)
	for (size_t i = 0; i < ARRAY_SIZE(m_WaterTexture); ++i)
	{
		swprintf_s(pathname, ARRAY_SIZE(pathname), L"art/textures/animated/water/%ls/diffuse%02d.dds", water_type, (int)i+1);
		CTextureProperties textureProps(pathname);
		textureProps.SetWrap(GL_REPEAT);

		CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
		texture->Prefetch();
		m_WaterTexture[i] = texture;
	}

	// Load normalmaps (for fancy water)
	for (size_t i = 0; i < ARRAY_SIZE(m_NormalMap); ++i)
	{
		swprintf_s(pathname, ARRAY_SIZE(pathname), L"art/textures/animated/water/%ls/normal%02d.dds", water_type, (int)i+1);
		CTextureProperties textureProps(pathname);
		textureProps.SetWrap(GL_REPEAT);

		CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
		texture->Prefetch();
		m_NormalMap[i] = texture;
	}
	// Load foam (for fancy water)
	{
		CTextureProperties textureProps("art/textures/terrain/types/water/foam.png");
		textureProps.SetWrap(GL_REPEAT);
		
		CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
		texture->Prefetch();
		m_Foam = texture;
	}
	// Load waves (for fancy water)
	{
		CTextureProperties textureProps("art/textures/terrain/types/water/shore_wave.png");
		textureProps.SetWrap(GL_REPEAT);
		
		CTexturePtr texture = g_Renderer.GetTextureManager().CreateTexture(textureProps);
		texture->Prefetch();
		m_Wave = texture;
	}
	// Set the size to the largest power of 2 that is <= to the window height, so
	// the reflection/refraction images will fit within the window
	// (alternative: use FBO's, which can have arbitrary size - but do we need
	// the reflection/refraction textures to be that large?)
	int size = (int)round_up_to_pow2((unsigned)g_Renderer.GetHeight());
	if(size > g_Renderer.GetHeight()) size /= 2;
	m_ReflectionTextureSize = size;
	m_RefractionTextureSize = size;

	// Create reflection texture
	glGenTextures(1, &m_ReflectionTexture);
	glBindTexture(GL_TEXTURE_2D, m_ReflectionTexture);
	glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB,
		(GLsizei)m_ReflectionTextureSize, (GLsizei)m_ReflectionTextureSize,
		0,  GL_RGB, GL_UNSIGNED_BYTE, 0);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
	
	// Create refraction texture
	glGenTextures(1, &m_RefractionTexture);
	glBindTexture(GL_TEXTURE_2D, m_RefractionTexture);
	glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, 
		(GLsizei)m_RefractionTextureSize, (GLsizei)m_RefractionTextureSize,
		0,  GL_RGB, GL_UNSIGNED_BYTE, 0);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);

	// Enable rendering, now that we've succeeded this far
	m_RenderWater = true;

	return 0;
}
示例#8
0
文件: LOSTexture.cpp 项目: stev47/0ad
void CLOSTexture::ConstructTexture(int unit)
{
	CmpPtr<ICmpTerrain> cmpTerrain(m_Simulation, SYSTEM_ENTITY);
	if (!cmpTerrain)
		return;

	m_MapSize = cmpTerrain->GetVerticesPerSide();

	m_TextureSize = (GLsizei)round_up_to_pow2((size_t)m_MapSize + g_BlurSize - 1);

	glGenTextures(1, &m_Texture);

	// Initialise texture with SoD colour, for the areas we don't
	// overwrite with glTexSubImage2D later
	u8* texData = new u8[m_TextureSize * m_TextureSize * 4];
	memset(texData, 0x00, m_TextureSize * m_TextureSize * 4);
	
	if (CRenderer::IsInitialised() && g_Renderer.m_Options.m_SmoothLOS)
	{
		glGenTextures(1, &m_TextureSmooth1);
		glGenTextures(1, &m_TextureSmooth2);
		
		g_Renderer.BindTexture(unit, m_TextureSmooth1);
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, m_TextureSize, m_TextureSize, 0, GL_ALPHA, GL_UNSIGNED_BYTE, texData);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);

		g_Renderer.BindTexture(unit, m_TextureSmooth2);
		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, m_TextureSize, m_TextureSize, 0, GL_ALPHA, GL_UNSIGNED_BYTE, texData);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
	}
	
	g_Renderer.BindTexture(unit, m_Texture);
	glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, m_TextureSize, m_TextureSize, 0, GL_ALPHA, GL_UNSIGNED_BYTE, texData);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
	
	delete[] texData;	
	
	{
		// Texture matrix: We want to map
		//   world pos (0, y, 0)  (i.e. first vertex)
		//     onto texcoord (0.5/texsize, 0.5/texsize)  (i.e. middle of first texel);
		//   world pos ((mapsize-1)*cellsize, y, (mapsize-1)*cellsize)  (i.e. last vertex)
		//     onto texcoord ((mapsize-0.5) / texsize, (mapsize-0.5) / texsize)  (i.e. middle of last texel)

		float s = (m_MapSize-1) / (float)(m_TextureSize * (m_MapSize-1) * TERRAIN_TILE_SIZE);
		float t = 0.5f / m_TextureSize;
		m_TextureMatrix.SetZero();
		m_TextureMatrix._11 = s;
		m_TextureMatrix._23 = s;
		m_TextureMatrix._14 = t;
		m_TextureMatrix._24 = t;
		m_TextureMatrix._44 = 1;
	}

	{
		// Minimap matrix: We want to map UV (0,0)-(1,1) onto (0,0)-(mapsize/texsize, mapsize/texsize)

		float s = m_MapSize / (float)m_TextureSize;
		m_MinimapTextureMatrix.SetZero();
		m_MinimapTextureMatrix._11 = s;
		m_MinimapTextureMatrix._22 = s;
		m_MinimapTextureMatrix._44 = 1;
	}
}
示例#9
0
文件: MiniMap.cpp 项目: bdnaor/0ad
// TODO: render the minimap in a framebuffer and just draw the frambuffer texture
//	most of the time, updating the framebuffer twice a frame.
// Here it updates as ping-pong either texture or vertex array each sec to lower gpu stalling
// (those operations cause a gpu sync, which slows down the way gpu works)
void CMiniMap::Draw()
{
	PROFILE3("render minimap");

	// The terrain isn't actually initialized until the map is loaded, which
	// happens when the game is started, so abort until then.
	if (!(GetGUI() && g_Game && g_Game->IsGameStarted()))
		return;

	CSimulation2* sim = g_Game->GetSimulation2();
	CmpPtr<ICmpRangeManager> cmpRangeManager(*sim, SYSTEM_ENTITY);
	ENSURE(cmpRangeManager);

	// Set our globals in case they hadn't been set before
	m_Camera = g_Game->GetView()->GetCamera();
	m_Terrain = g_Game->GetWorld()->GetTerrain();
	m_Width  = (u32)(m_CachedActualSize.right - m_CachedActualSize.left);
	m_Height = (u32)(m_CachedActualSize.bottom - m_CachedActualSize.top);
	m_MapSize = m_Terrain->GetVerticesPerSide();
	m_TextureSize = (GLsizei)round_up_to_pow2((size_t)m_MapSize);
	m_MapScale = (cmpRangeManager->GetLosCircular() ? 1.f : 1.414f);

	if (!m_TerrainTexture || g_GameRestarted)
		CreateTextures();


	// only update 2x / second
	// (note: since units only move a few pixels per second on the minimap,
	// we can get away with infrequent updates; this is slow)
	// TODO: Update all but camera at same speed as simulation
	static double last_time;
	const double cur_time = timer_Time();
	const bool doUpdate = cur_time - last_time > 0.5;
	if (doUpdate)
	{
		last_time = cur_time;
		if (m_TerrainDirty)
			RebuildTerrainTexture();
	}

	const float x = m_CachedActualSize.left, y = m_CachedActualSize.bottom;
	const float x2 = m_CachedActualSize.right, y2 = m_CachedActualSize.top;
	const float z = GetBufferedZ();
	const float texCoordMax = (float)(m_MapSize - 1) / (float)m_TextureSize;
	const float angle = GetAngle();
	const float unitScale = (cmpRangeManager->GetLosCircular() ? 1.f : m_MapScale/2.f);

	// Disable depth updates to prevent apparent z-fighting-related issues
	//  with some drivers causing units to get drawn behind the texture.
	glDepthMask(0);

	CShaderProgramPtr shader;
	CShaderTechniquePtr tech;

	CShaderDefines baseDefines;
	baseDefines.Add(str_MINIMAP_BASE, str_1);
	tech = g_Renderer.GetShaderManager().LoadEffect(str_minimap, g_Renderer.GetSystemShaderDefines(), baseDefines);
	tech->BeginPass();
	shader = tech->GetShader();

	// Draw the main textured quad
	shader->BindTexture(str_baseTex, m_TerrainTexture);
	const CMatrix3D baseTransform = GetDefaultGuiMatrix();
	CMatrix3D baseTextureTransform;
	baseTextureTransform.SetIdentity();
	shader->Uniform(str_transform, baseTransform);
	shader->Uniform(str_textureTransform, baseTextureTransform);

	DrawTexture(shader, texCoordMax, angle, x, y, x2, y2, z);

	// Draw territory boundaries
	glEnable(GL_BLEND);

	CTerritoryTexture& territoryTexture = g_Game->GetView()->GetTerritoryTexture();

	shader->BindTexture(str_baseTex, territoryTexture.GetTexture());
	const CMatrix3D* territoryTransform = territoryTexture.GetMinimapTextureMatrix();
	shader->Uniform(str_transform, baseTransform);
	shader->Uniform(str_textureTransform, *territoryTransform);

	DrawTexture(shader, 1.0f, angle, x, y, x2, y2, z);
	tech->EndPass();

	// Draw the LOS quad in black, using alpha values from the LOS texture
	CLOSTexture& losTexture = g_Game->GetView()->GetLOSTexture();

	CShaderDefines losDefines;
	losDefines.Add(str_MINIMAP_LOS, str_1);
	tech = g_Renderer.GetShaderManager().LoadEffect(str_minimap, g_Renderer.GetSystemShaderDefines(), losDefines);
	tech->BeginPass();
	shader = tech->GetShader();
	shader->BindTexture(str_baseTex, losTexture.GetTexture());

	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

	const CMatrix3D* losTransform = losTexture.GetMinimapTextureMatrix();
	shader->Uniform(str_transform, baseTransform);
	shader->Uniform(str_textureTransform, *losTransform);

	DrawTexture(shader, 1.0f, angle, x, y, x2, y2, z);
	tech->EndPass();

	glDisable(GL_BLEND);

	PROFILE_START("minimap units");

	CShaderDefines pointDefines;
	pointDefines.Add(str_MINIMAP_POINT, str_1);
	tech = g_Renderer.GetShaderManager().LoadEffect(str_minimap, g_Renderer.GetSystemShaderDefines(), pointDefines);
	tech->BeginPass();
	shader = tech->GetShader();
	shader->Uniform(str_transform, baseTransform);
	shader->Uniform(str_pointSize, 3.f);

	CMatrix3D unitMatrix;
	unitMatrix.SetIdentity();
	// Center the minimap on the origin of the axis of rotation.
	unitMatrix.Translate(-(x2 - x) / 2.f, -(y2 - y) / 2.f, 0.f);
	// Rotate the map.
	unitMatrix.RotateZ(angle);
	// Scale square maps to fit.
	unitMatrix.Scale(unitScale, unitScale, 1.f);
	// Move the minimap back to it's starting position.
	unitMatrix.Translate((x2 - x) / 2.f, (y2 - y) / 2.f, 0.f);
	// Move the minimap to it's final location.
	unitMatrix.Translate(x, y, z);
	// Apply the gui matrix.
	unitMatrix *= GetDefaultGuiMatrix();
	// Load the transform into the shader.
	shader->Uniform(str_transform, unitMatrix);

	const float sx = (float)m_Width / ((m_MapSize - 1) * TERRAIN_TILE_SIZE);
	const float sy = (float)m_Height / ((m_MapSize - 1) * TERRAIN_TILE_SIZE);

	CSimulation2::InterfaceList ents = sim->GetEntitiesWithInterface(IID_Minimap);

	if (doUpdate)
	{
		VertexArrayIterator<float[2]> attrPos = m_AttributePos.GetIterator<float[2]>();
		VertexArrayIterator<u8[4]> attrColor = m_AttributeColor.GetIterator<u8[4]>();

		m_EntitiesDrawn = 0;
		MinimapUnitVertex v;
		std::vector<MinimapUnitVertex> pingingVertices;
		pingingVertices.reserve(MAX_ENTITIES_DRAWN / 2);

		if (cur_time > m_NextBlinkTime)
		{
			m_BlinkState = !m_BlinkState;
			m_NextBlinkTime = cur_time + m_HalfBlinkDuration;
		}

		entity_pos_t posX, posZ;
		for (CSimulation2::InterfaceList::const_iterator it = ents.begin(); it != ents.end(); ++it)
		{
			ICmpMinimap* cmpMinimap = static_cast<ICmpMinimap*>(it->second);
			if (cmpMinimap->GetRenderData(v.r, v.g, v.b, posX, posZ))
			{
				ICmpRangeManager::ELosVisibility vis = cmpRangeManager->GetLosVisibility(it->first, g_Game->GetPlayerID());
				if (vis != ICmpRangeManager::VIS_HIDDEN)
				{
					v.a = 255;
					v.x = posX.ToFloat() * sx;
					v.y = -posZ.ToFloat() * sy;

					// Check minimap pinging to indicate something
					if (m_BlinkState && cmpMinimap->CheckPing(cur_time, m_PingDuration))
					{
						v.r = 255; // ping color is white
						v.g = 255;
						v.b = 255;
						pingingVertices.push_back(v);
					}
					else
					{
						addVertex(v, attrColor, attrPos);
						++m_EntitiesDrawn;
					}
				}
			}
		}

		// Add the pinged vertices at the end, so they are drawn on top
		for (size_t v = 0; v < pingingVertices.size(); ++v)
		{
			addVertex(pingingVertices[v], attrColor, attrPos);
			++m_EntitiesDrawn;
		}

		ENSURE(m_EntitiesDrawn < MAX_ENTITIES_DRAWN);
		m_VertexArray.Upload();
	}

	m_VertexArray.PrepareForRendering();

	if (m_EntitiesDrawn > 0)
	{
#if !CONFIG2_GLES
		if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
			glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
#endif

		u8* indexBase = m_IndexArray.Bind();
		u8* base = m_VertexArray.Bind();
		const GLsizei stride = (GLsizei)m_VertexArray.GetStride();

		shader->VertexPointer(2, GL_FLOAT, stride, base + m_AttributePos.offset);
		shader->ColorPointer(4, GL_UNSIGNED_BYTE, stride, base + m_AttributeColor.offset);
		shader->AssertPointersBound();

		if (!g_Renderer.m_SkipSubmit)
			glDrawElements(GL_POINTS, (GLsizei)(m_EntitiesDrawn), GL_UNSIGNED_SHORT, indexBase);

		g_Renderer.GetStats().m_DrawCalls++;
		CVertexBuffer::Unbind();

#if !CONFIG2_GLES
		if (g_Renderer.GetRenderPath() == CRenderer::RP_SHADER)
			glDisable(GL_VERTEX_PROGRAM_POINT_SIZE);
#endif
	}

	tech->EndPass();

	DrawViewRect(unitMatrix);

	PROFILE_END("minimap units");

	// Reset depth mask
	glDepthMask(1);
}