private void DownSampling()
{
DownScaleConstStruct constData = new DownScaleConstStruct()
{
ResX = (uint)(GetDisplay.Width / 4),
ResY = (uint)(GetDisplay.Height / 4),
Domain = (uint)((GetDisplay.Width * GetDisplay.Height) / 16),
GroupSize = (uint)((GetDisplay.Width * GetDisplay.Height) / (16 * 1024)),
Adaptation = Math.Min(RenderBackend.EngineRef.Time.DeltaTime / AdaptationPercent, 0.9999f),
};
D3DUtils.WriteToDynamicBuffer(GetContext, DownScaleConstantsBuffer, constData);
SetComputeShader(DownsamplingFirsPassCSName);
GetContext.ComputeShader.SetShaderResource(0, HDRTarget.ResourceView);
GetContext.ComputeShader.SetUnorderedAccessView(0, CSLuminanceUAV);
if (DwnSmplPrev)
{
GetContext.ComputeShader.SetShaderResource(1, CSAvgLuminanceSRV);
}
else
{
GetContext.ComputeShader.SetShaderResource(1, CSPrevAvgLuminanceSRV);
}
GetContext.Dispatch((GetDisplay.Width * GetDisplay.Height) / (16 * 1024), 1, 1);
GetContext.ComputeShader.SetShaderResource(0, null);
GetContext.ComputeShader.SetUnorderedAccessView(0, null);
GetContext.ComputeShader.SetShaderResource(2, CSLuminanceSRV);
if (DwnSmplPrev)
{
GetContext.ComputeShader.SetUnorderedAccessView(0, CSPrevAvgLuminanceUAV);
}
else
{
GetContext.ComputeShader.SetUnorderedAccessView(0, CSAvgLuminanceUAV);
}
SetComputeShader(DownsamplingSecondPassCSName);
GetContext.Dispatch(1, 1, 1);
GetContext.ComputeShader.SetShaderResource(1, null);
GetContext.ComputeShader.SetShaderResource(2, null);
GetContext.ComputeShader.SetUnorderedAccessView(0, null);
DwnSmplPrev = !DwnSmplPrev;
}
private void LightCullingPass(StandardFrameData frameData)
{
CurrentPass = Pass.LightCulling;
UpdateLights(frameData.LightsList);
m_PerFrameConstBuffer.NumLights = NonDirLightsCount;
m_PerFrameConstBuffer.DirLightsNum = DirLightsCount;
m_PerFrameConstBuffer.MaxNumLightsPerTile = (uint)GetMaxNumLightsPerTile();
GetContext.UpdateSubresource(ref m_PerFrameConstBuffer, PerFrameConstantBuffer);
m_PerObjectConstBuffer = new CommonStructs.ConstBufferPerObjectStruct()
{
WorldMatrix = Matrix.Identity,
WorldViewMatrix = Matrix.Identity * frameData.CamerasList[0].View,
WorldViewProjMatrix = Matrix.Identity * frameData.CamerasList[0].ViewProjection,
};
GetContext.UpdateSubresource(ref m_PerObjectConstBuffer, PerObjConstantBuffer);
GetContext.ComputeShader.SetConstantBuffer(0, PerObjConstantBuffer);
GetContext.ComputeShader.SetConstantBuffer(1, PerFrameConstantBuffer);
GetContext.OutputMerger.SetRenderTargets(null, (RenderTargetView)null);
SetNullVertexShader();
SetNullPixelShader();
SetNullRasterizerState();
SetBlendState(BlendStates.Opaque);
GetContext.ComputeShader.Set(AssetsLoader.GetShader <ComputeShader>("LightCullingCS"));
GetContext.ComputeShader.SetShaderResource(0, LightCenterAndRadiusSRV);
GetContext.ComputeShader.SetShaderResource(1, GetDisplay.DepthStencilSRVRef);
GetContext.ComputeShader.SetUnorderedAccessView(0, LightIndexURV);
GetContext.Dispatch(GetNumTilesX(), GetNumTilesY(), 1);
GetContext.ComputeShader.Set(null);
GetContext.ComputeShader.SetShaderResource(0, null);
GetContext.ComputeShader.SetShaderResource(1, null);
GetContext.ComputeShader.SetUnorderedAccessView(0, null);
}