static public void ExecuteLightClusterDebug(CommandBuffer cmd, LightClusterDebugParameters parameters, LightClusterDebugResources resources)
{
// Bind the output texture
CoreUtils.SetRenderTarget(cmd, resources.debugLightClusterTexture, resources.depthStencilBuffer, clearFlag: ClearFlag.Color, clearColor: Color.black);
// Inject all the parameters to the debug compute
cmd.SetComputeBufferParam(parameters.lightClusterDebugCS, parameters.lightClusterDebugKernel, HDShaderIDs._RaytracingLightCluster, parameters.lightCluster);
cmd.SetComputeVectorParam(parameters.lightClusterDebugCS, _ClusterCellSize, parameters.clusterCellSize);
cmd.SetComputeTextureParam(parameters.lightClusterDebugCS, parameters.lightClusterDebugKernel, HDShaderIDs._CameraDepthTexture, resources.depthStencilBuffer);
// Target output texture
cmd.SetComputeTextureParam(parameters.lightClusterDebugCS, parameters.lightClusterDebugKernel, _DebutLightClusterTexture, resources.debugLightClusterTexture);
// Dispatch the compute
int lightVolumesTileSize = 8;
int numTilesX = (parameters.texWidth + (lightVolumesTileSize - 1)) / lightVolumesTileSize;
int numTilesY = (parameters.texHeight + (lightVolumesTileSize - 1)) / lightVolumesTileSize;
cmd.DispatchCompute(parameters.lightClusterDebugCS, parameters.lightClusterDebugKernel, numTilesX, numTilesY, 1);
// Bind the parameters
parameters.debugMaterialProperties.SetBuffer(HDShaderIDs._RaytracingLightCluster, parameters.lightCluster);
parameters.debugMaterialProperties.SetVector(_ClusterCellSize, parameters.clusterCellSize);
parameters.debugMaterialProperties.SetTexture(HDShaderIDs._CameraDepthTexture, resources.depthTexture);
// Draw the faces
cmd.DrawProcedural(Matrix4x4.identity, parameters.debugMaterial, 1, MeshTopology.Lines, 48, 64 * 64 * 32, parameters.debugMaterialProperties);
cmd.DrawProcedural(Matrix4x4.identity, parameters.debugMaterial, 0, MeshTopology.Triangles, 36, 64 * 64 * 32, parameters.debugMaterialProperties);
}
public void EvaluateClusterDebugView(CommandBuffer cmd, HDCamera hdCamera)
{
LightClusterDebugParameters parameters = PrepareLightClusterDebugParameters(hdCamera);
LightClusterDebugResources resources = PrepareLightClusterDebugResources(m_DebugLightClusterTexture);
ExecuteLightClusterDebug(cmd, parameters, resources);
// Bind the result
m_RenderPipeline.PushFullScreenDebugTexture(hdCamera, cmd, m_DebugLightClusterTexture, FullScreenDebugMode.LightCluster);
}
LightClusterDebugParameters PrepareLightClusterDebugParameters(HDCamera hdCamera)
{
LightClusterDebugParameters parameters = new LightClusterDebugParameters();
parameters.texWidth = hdCamera.actualWidth;
parameters.texHeight = hdCamera.actualHeight;
parameters.clusterCellSize = clusterCellSize;
parameters.lightCluster = m_LightCluster;
parameters.lightClusterDebugCS = m_RenderPipelineRayTracingResources.lightClusterDebugCS;
parameters.lightClusterDebugKernel = parameters.lightClusterDebugCS.FindKernel("DebugLightCluster");
parameters.debugMaterial = m_DebugMaterial;
return(parameters);
}