/// <summary> /// Creates a frame buffer with a 1x1 RGB color attachment. /// </summary> public static Framebuffer CreateFramebuffer(Context context) { Framebuffer framebuffer = context.CreateFramebuffer(); framebuffer.ColorAttachments[0] = Device.CreateTexture2D( new Texture2DDescription(1, 1, TextureFormat.RedGreenBlue8, false)); framebuffer.DepthAttachment = Device.CreateTexture2D( new Texture2DDescription(1, 1, TextureFormat.Depth24, false)); return framebuffer; }
public ClipmapUpdater(Context context, ClipmapLevel[] clipmapLevels) { ShaderVertexAttributeCollection vertexAttributes = new ShaderVertexAttributeCollection(); vertexAttributes.Add(new ShaderVertexAttribute("position", VertexLocations.Position, ShaderVertexAttributeType.FloatVector2, 1)); Mesh unitQuad = RectangleTessellator.Compute(new RectangleD(new Vector2D(0.0, 0.0), new Vector2D(1.0, 1.0)), 1, 1); _unitQuad = context.CreateVertexArray(unitQuad, vertexAttributes, BufferHint.StaticDraw); _unitQuadPrimitiveType = unitQuad.PrimitiveType; _sceneState = new SceneState(); _framebuffer = context.CreateFramebuffer(); _updateShader = Device.CreateShaderProgram( EmbeddedResources.GetText("OpenGlobe.Scene.Terrain.ClipmapTerrain.ClipmapUpdateVS.glsl"), EmbeddedResources.GetText("OpenGlobe.Scene.Terrain.ClipmapTerrain.ClipmapUpdateFS.glsl")); _updateTexelOutput = _updateShader.FragmentOutputs["texelOutput"]; _updateDrawState = new DrawState(new RenderState(), _updateShader, _unitQuad); _updateDrawState.RenderState.FacetCulling.FrontFaceWindingOrder = unitQuad.FrontFaceWindingOrder; _updateDrawState.RenderState.DepthTest.Enabled = false; _updateDestinationOffset = (Uniform<Vector2F>)_updateShader.Uniforms["u_destinationOffset"]; _updateUpdateSize = (Uniform<Vector2F>)_updateShader.Uniforms["u_updateSize"]; _updateSourceOrigin = (Uniform<Vector2F>)_updateShader.Uniforms["u_sourceOrigin"]; _upsampleShader = Device.CreateShaderProgram( EmbeddedResources.GetText("OpenGlobe.Scene.Terrain.ClipmapTerrain.ClipmapUpsampleVS.glsl"), EmbeddedResources.GetText("OpenGlobe.Scene.Terrain.ClipmapTerrain.ClipmapUpsampleFS.glsl")); _upsampleTexelOutput = _upsampleShader.FragmentOutputs["texelOutput"]; _upsampleDrawState = new DrawState(new RenderState(), _upsampleShader, _unitQuad); _upsampleDrawState.RenderState.FacetCulling.FrontFaceWindingOrder = unitQuad.FrontFaceWindingOrder; _upsampleDrawState.RenderState.DepthTest.Enabled = false; _upsampleSourceOrigin = (Uniform<Vector2F>)_upsampleShader.Uniforms["u_sourceOrigin"]; _upsampleUpdateSize = (Uniform<Vector2F>)_upsampleShader.Uniforms["u_updateSize"]; _upsampleDestinationOffset = (Uniform<Vector2F>)_upsampleShader.Uniforms["u_destinationOffset"]; _upsampleOneOverTextureSize = (Uniform<Vector2F>)_upsampleShader.Uniforms["u_oneOverTextureSize"]; _computeNormalsShader = Device.CreateShaderProgram( EmbeddedResources.GetText("OpenGlobe.Scene.Terrain.ClipmapTerrain.ClipmapComputeNormalsVS.glsl"), EmbeddedResources.GetText("OpenGlobe.Scene.Terrain.ClipmapTerrain.ClipmapComputeNormalsFS.glsl")); _normalOutput = _computeNormalsShader.FragmentOutputs["normalOutput"]; _computeNormalsDrawState = new DrawState(new RenderState(), _computeNormalsShader, _unitQuad); _computeNormalsDrawState.RenderState.FacetCulling.FrontFaceWindingOrder = unitQuad.FrontFaceWindingOrder; _computeNormalsDrawState.RenderState.DepthTest.Enabled = false; _computeNormalsOrigin = (Uniform<Vector2F>)_computeNormalsShader.Uniforms["u_origin"]; _computeNormalsUpdateSize = (Uniform<Vector2F>)_computeNormalsShader.Uniforms["u_updateSize"]; _computeNormalsOneOverHeightMapSize = (Uniform<Vector2F>)_computeNormalsShader.Uniforms["u_oneOverHeightMapSize"]; _heightExaggeration = (Uniform<float>)_computeNormalsShader.Uniforms["u_heightExaggeration"]; _postDelta = (Uniform<float>)_computeNormalsShader.Uniforms["u_postDelta"]; HeightExaggeration = 1.0f; ClipmapLevel levelZero = clipmapLevels[0]; InitializeRequestThreads(context, _terrain, levelZero, levelZero.Terrain); InitializeRequestThreads(context, _imagery, levelZero, levelZero.Imagery); }
public HighResolutionSnapFramebuffer(Context context, double widthInInches, int dotsPerInch, double aspectRatio) { _widthInInches = widthInInches; _dotsPerInch = dotsPerInch; _aspectRatio = aspectRatio; Texture2DDescription colorDescription = new Texture2DDescription(WidthInPixels, HeightInPixels, TextureFormat.RedGreenBlue8, false); _colorTexture = Device.CreateTexture2D(colorDescription); Texture2DDescription depthDescription = new Texture2DDescription(WidthInPixels, HeightInPixels, TextureFormat.Depth24, false); _depthTexture = Device.CreateTexture2D(depthDescription); _framebuffer = context.CreateFramebuffer(); _framebuffer.ColorAttachments[0] = _colorTexture; _framebuffer.DepthAttachment = _depthTexture; }
public HighResolutionSnapFramebuffer(Context context, double widthInInches, int dotsPerInch, double aspectRatio) { _widthInInches = widthInInches; _dotsPerInch = dotsPerInch; _aspectRatio = aspectRatio; Texture2DDescription colorDescription = new Texture2DDescription(WidthInPixels, HeightInPixels, TextureFormat.RedGreenBlue8, false); _colorTexture = Device.CreateTexture2D(colorDescription); Texture2DDescription depthDescription = new Texture2DDescription(WidthInPixels, HeightInPixels, TextureFormat.Depth24, false); _depthTexture = Device.CreateTexture2D(depthDescription); _framebuffer = context.CreateFramebuffer(); _framebuffer.ColorAttachments[0] = _colorTexture; _framebuffer.DepthAttachment = _depthTexture; }
private void CreateDepthAndSilhouetteData(Context context) { if ((_depthTexture == null) || (_depthTexture.Description.Width != context.Viewport.Width) || (_depthTexture.Description.Height != context.Viewport.Height)) { // // Dispose as necessary // if (_depthTexture != null) { _depthTexture.Dispose(); } if (_silhouetteTexture != null) { _silhouetteTexture.Dispose(); } if (_colorTexture != null) { _colorTexture.Dispose(); } // // Textures // _depthTexture = Device.CreateTexture2D(new Texture2DDescription(context.Viewport.Width, context.Viewport.Height, TextureFormat.Depth24)); _silhouetteTexture = Device.CreateTexture2D(new Texture2DDescription(context.Viewport.Width, context.Viewport.Height, TextureFormat.Red8)); _colorTexture = Device.CreateTexture2D(new Texture2DDescription(context.Viewport.Width, context.Viewport.Height, TextureFormat.RedGreenBlue8)); // // Terrain FBO // if (_terrainFramebuffer == null) { _terrainFramebuffer = context.CreateFramebuffer(); } _terrainFramebuffer.DepthAttachment = _depthTexture; _terrainFramebuffer.ColorAttachments[0] = _colorTexture; // // Silhouette FBO // if (_silhouetteFramebuffer == null) { _silhouetteFramebuffer = context.CreateFramebuffer(); } _silhouetteFramebuffer.DepthAttachment = _depthTexture; _silhouetteFramebuffer.ColorAttachments[0] = _silhouetteTexture; } }