public void EvaluateClusterDebugView(RenderGraph renderGraph, HDCamera hdCamera, TextureHandle depthStencilBuffer, TextureHandle depthPyramid)
{
TextureHandle debugTexture;
using (var builder = renderGraph.AddRenderPass <LightClusterDebugPassData>("Debug Texture for the Light Cluster", out var passData, ProfilingSampler.Get(HDProfileId.RaytracingDebugCluster)))
{
builder.EnableAsyncCompute(false);
passData.parameters = PrepareLightClusterDebugParameters(hdCamera);
passData.depthStencilBuffer = builder.UseDepthBuffer(depthStencilBuffer, DepthAccess.Read);
passData.depthPyramid = builder.ReadTexture(depthStencilBuffer);
passData.outputBuffer = builder.WriteTexture(renderGraph.CreateTexture(new TextureDesc(Vector2.one, true, true)
{
colorFormat = GraphicsFormat.R16G16B16A16_SFloat, enableRandomWrite = true, name = "Light Cluster Debug Texture"
}));
builder.SetRenderFunc(
(LightClusterDebugPassData data, RenderGraphContext ctx) =>
{
// We need to fill the structure that holds the various resources
LightClusterDebugResources resources = new LightClusterDebugResources();
resources.depthStencilBuffer = data.depthStencilBuffer;
resources.depthTexture = data.depthPyramid;
resources.debugLightClusterTexture = data.outputBuffer;
ExecuteLightClusterDebug(ctx.cmd, data.parameters, resources);
});
debugTexture = passData.outputBuffer;
}
m_RenderPipeline.PushFullScreenDebugTexture(renderGraph, debugTexture, FullScreenDebugMode.LightCluster);
}
LightClusterDebugResources PrepareLightClusterDebugResources(RTHandle outputDebugLightBuffer)
{
LightClusterDebugResources resources = new LightClusterDebugResources();
resources.debugLightClusterTexture = outputDebugLightBuffer;
resources.depthTexture = m_RenderPipeline.sharedRTManager.GetDepthTexture();
resources.depthStencilBuffer = m_RenderPipeline.sharedRTManager.GetDepthStencilBuffer();
return(resources);
}
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);
}
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);
}