public override RenderableLightPrimitive GetRenderablePrimitive()
{
LightShader shader = new LightShader(Renderer);
using (ShaderBytecode bytecode = new ShaderBytecode(new DataStream(File.ReadAllBytes("Shaders\\DeferredPointLight.vs"), true, false)))
{
shader.VertexShader = new VertexShader(Renderer.Device, bytecode);
shader.InputLayout = new InputLayout(Renderer.Device, bytecode, new[]
{
new InputElement("Position", 0, Format.R32G32B32_Float, sizeof(float) * 0, 0),
});
}
using (ShaderBytecode bytecode = new ShaderBytecode(new DataStream(File.ReadAllBytes("Shaders\\DeferredPointLightShadowless.ps"), true, false)))
{
shader.PixelShader = new PixelShader(Renderer.Device, bytecode);
}
using (ShaderBytecode bytecode = new ShaderBytecode(new DataStream(File.ReadAllBytes("Shaders\\DeferredPointLightShadowless.ps"), true, false)))
{
shader.PixelShaderShadowless = new PixelShader(Renderer.Device, bytecode);
}
shader.Topology = PrimitiveTopology.TriangleList;
ConstantBufferWrapper MatricesCBuffer = new ConstantBufferWrapper(Renderer, sizeof(float) * 32, ShaderType.VertexShader, 0);
ConstantBufferWrapper LightCBuffer = new ConstantBufferWrapper(Renderer, sizeof(float) * 64, ShaderType.PixelShader, 0);
ConstantBufferWrapper ShadowCBuffer = new ConstantBufferWrapper(Renderer, sizeof(float) * 16 * 4, ShaderType.PixelShader, 1);
MatricesCBuffer.Semantics.Add(Semantic.WorldViewProj);
MatricesCBuffer.Semantics.Add(Semantic.World);
LightCBuffer.Semantics.Add(Semantic.View);
LightCBuffer.Semantics.Add(Semantic.ViewInverse);
LightCBuffer.Semantics.Add(Semantic.ViewProjInverse);
LightCBuffer.Semantics.Add(Semantic.CameraPosition);
shader.ConstantBuffers.Add(MatricesCBuffer);
shader.ConstantBuffers.Add(LightCBuffer);
shader.ConstantBuffers.Add(ShadowCBuffer);
GeometricPrimitive prim = new SpherePrimitive(Renderer, 1, 16);
DataStream str = new DataStream(prim.GeometryData.Positions, true, false);
Buffer vertexBuffer = new Buffer(Renderer.Device, str, new BufferDescription()
{
SizeInBytes = (int)str.Length,
BindFlags = BindFlags.VertexBuffer,
StructureByteStride = 3 * sizeof(float),
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.None,
Usage = ResourceUsage.Default,
});
int vertexCount = prim.GeometryData.VertexCount;
DataStream IndicesStream = new DataStream(prim.GeometryData.Indices.ToArray(), true, true);
int indexCount = prim.GeometryData.IndexCount;
Buffer indexBuffer = new Buffer(Renderer.Device, IndicesStream, sizeof(ushort) * indexCount,
ResourceUsage.Default, BindFlags.IndexBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, sizeof(ushort));
prim.Dispose();
return new RenderableLightPrimitive(shader, vertexBuffer, vertexCount, indexBuffer, indexCount);
}
public override void Initialize()
{
base.Initialize();
plStruct = new PointLightStruct[maxLights];
pLightBuffer = new StructuredBuffer<PointLightStruct>(maxLights, false, true);
cBuffer = new ConstantBufferWrapper(Renderer, sizeof(float) * 32, ShaderType.PixelShader, 0);
cBuffer.Semantics.Add(Semantic.Projection);
cBuffer.Semantics.Add(Semantic.CameraNearFar);
GBuffer = new GBuffer(Renderer);
BlendStateDescription disabledBlendDesc = States.BlendDefault();
BlendStateDescription additiveDesc = States.BlendDefault();
additiveDesc.RenderTargets[0] = new RenderTargetBlendDescription()
{
BlendEnable = true,
SourceBlend = BlendOption.One,
DestinationBlend = BlendOption.One,
BlendOperation = BlendOperation.Add,
SourceBlendAlpha = BlendOption.One,
DestinationBlendAlpha = BlendOption.One,
BlendOperationAlpha = BlendOperation.Add,
RenderTargetWriteMask = ColorWriteMaskFlags.All,
};
DepthStencilStateDescription defaultDepthDesc = States.DepthDefault();
defaultDepthDesc.DepthComparison = Comparison.GreaterEqual;
DepthStencilStateDescription equalDesc = new DepthStencilStateDescription()
{
IsDepthEnabled = true,
DepthWriteMask = DepthWriteMask.Zero,
DepthComparison = Comparison.GreaterEqual,
IsStencilEnabled = true,
StencilWriteMask = 0xFF,
StencilReadMask = 0xFF,
FrontFace = new DepthStencilOperationDescription()
{
FailOperation = StencilOperation.Keep,
DepthFailOperation = StencilOperation.Keep,
PassOperation = StencilOperation.Keep,
Comparison = Comparison.Equal,
},
BackFace = new DepthStencilOperationDescription()
{
FailOperation = StencilOperation.Keep,
DepthFailOperation = StencilOperation.Keep,
PassOperation = StencilOperation.Keep,
Comparison = Comparison.Equal,
}
};
DepthStencilStateDescription writeDesc = new DepthStencilStateDescription()
{
IsDepthEnabled = false,
DepthWriteMask = DepthWriteMask.Zero,
DepthComparison = Comparison.GreaterEqual,
IsStencilEnabled = true,
StencilWriteMask = 0xFF,
StencilReadMask = 0xFF,
FrontFace = new DepthStencilOperationDescription()
{
FailOperation = StencilOperation.Replace,
DepthFailOperation = StencilOperation.Replace,
PassOperation = StencilOperation.Replace,
Comparison = Comparison.Always,
},
BackFace = new DepthStencilOperationDescription()
{
FailOperation = StencilOperation.Replace,
DepthFailOperation = StencilOperation.Replace,
PassOperation = StencilOperation.Replace,
Comparison = Comparison.Always,
}
};
RasterizerStateDescription rsDesc = States.RasterizerDefault();
mGeometryBlendState = BlendState.FromDescription(Renderer.Device, disabledBlendDesc);
mLightingBlendState = BlendState.FromDescription(Renderer.Device, additiveDesc);
mDepthState = DepthStencilState.FromDescription(Renderer.Device, defaultDepthDesc);
mEqualStencilState = DepthStencilState.FromDescription(Renderer.Device, equalDesc);
mWriteStencilState = DepthStencilState.FromDescription(Renderer.Device, writeDesc);
mRasterizerState = RasterizerState.FromDescription(Renderer.Device, rsDesc);
InitializeBuffers();
InitializeShaders();
}
