TempRenderTarget* PostProcessor::Bloom(ID3D11ShaderResourceView* input)
{
PIXEvent pixEvent(L"Bloom");
TempRenderTarget* downscale1 = GetTempRenderTarget(inputWidth / 2, inputHeight / 2, DXGI_FORMAT_R16G16B16A16_FLOAT);
inputs.push_back(input);
outputs.push_back(downscale1->RTView);
PostProcess(bloom, L"Bloom Initial Pass");
// Blur it
for(uint64 i = 0; i < 2; ++i)
{
TempRenderTarget* blurTemp = GetTempRenderTarget(inputWidth / 2, inputHeight / 2, DXGI_FORMAT_R16G16B16A16_FLOAT);
PostProcess(downscale1->SRView, blurTemp->RTView, blurH, L"Horizontal Bloom Blur");
PostProcess(blurTemp->SRView, downscale1->RTView, blurV, L"Vertical Bloom Blur");
blurTemp->InUse = false;
}
return downscale1;
}
void PostProcessor::Bloom(ID3D11ShaderResourceView* input, TempRenderTarget*& bloomTarget)
{
// Downscale
TempRenderTarget* bloomSrc = GetTempRenderTarget(inputWidth, inputHeight, DXGI_FORMAT_R11G11B10_FLOAT);
inputs.push_back(input);
inputs.push_back(adaptedLuminance[currLumTarget].SRView);
outputs.push_back(bloomSrc->RTView);
PostProcess(bloomThreshold, L"Bloom Threshold");
TempRenderTarget* downscale1 = GetTempRenderTarget(inputWidth / 2, inputHeight / 2, DXGI_FORMAT_R11G11B10_FLOAT);
PostProcess(bloomSrc->SRView, downscale1->RTView, scale, L"Bloom Downscale");
bloomSrc->InUse = false;
TempRenderTarget* downscale2 = GetTempRenderTarget(inputWidth / 4, inputHeight / 4, DXGI_FORMAT_R11G11B10_FLOAT);
PostProcess(downscale1->SRView, downscale2->RTView, scale, L"Bloom Downscale");
TempRenderTarget* downscale3 = GetTempRenderTarget(inputWidth / 8, inputHeight / 8, DXGI_FORMAT_R11G11B10_FLOAT);
PostProcess(downscale2->SRView, downscale3->RTView, scale, L"Bloom Downscale");
// Blur it
for (uint64 i = 0; i < 4; ++i)
{
TempRenderTarget* blurTemp = GetTempRenderTarget(inputWidth / 8, inputHeight / 8, DXGI_FORMAT_R11G11B10_FLOAT);
PostProcess(downscale3->SRView, blurTemp->RTView, bloomBlurH, L"Horizontal Bloom Blur");
PostProcess(blurTemp->SRView, downscale3->RTView, bloomBlurV, L"Vertical Bloom Blur");
blurTemp->InUse = false;
}
PostProcess(downscale3->SRView, downscale2->RTView, scale, L"Bloom Upscale");
downscale3->InUse = false;
PostProcess(downscale2->SRView, downscale1->RTView, scale, L"Bloom Upscale");
downscale2->InUse = false;
bloomTarget = downscale1;
}
void PostProcessor::CalcAvgLuminance(ID3D11ShaderResourceView* input)
{
TempRenderTarget* initialLuminance = GetTempRenderTarget(LumMapSize, LumMapSize, DXGI_FORMAT_R32_FLOAT, 1, 0, 0, TRUE);
// Luminance mapping
PostProcess(input, initialLuminance->RTView, luminanceMap, L"Luminance Map Generation");
// Generate the mip chain
context->GenerateMips(initialLuminance->SRView);
// Adaptation
inputs.push_back(adaptedLuminance[!currLumTarget].SRView);
inputs.push_back(initialLuminance->SRView);
outputs.push_back(adaptedLuminance[currLumTarget].RTView);
PostProcess(adaptLuminance, L"Luminance Adaptation");
initialLuminance->InUse = FALSE;
}
void PostProcessor::ToneMap(ID3D11ShaderResourceView* input,
ID3D11ShaderResourceView* bloom,
ID3D11RenderTargetView* output)
{
// Use an intermediate render target so that we can render do sRGB conversion ourselves in the shader
TempRenderTarget* tmOutput = GetTempRenderTarget(inputWidth, inputHeight, DXGI_FORMAT_R8G8B8A8_UNORM);
inputs.push_back(input);
inputs.push_back(bloom);
outputs.push_back(tmOutput->RTView);
PostProcess(toneMap, L"Tone Mapping");
ID3D11ResourcePtr outputResource;
output->GetResource(&outputResource);
context->CopyResource(outputResource, tmOutput->Texture);
tmOutput->InUse = false;
}