void GetPresetCloudMapValues(VolumetricClouds.CloudPresets preset, out CloudModelData cloudModelData)
{
switch (preset)
{
case VolumetricClouds.CloudPresets.Sparse:
{
cloudModelData.densityMultiplier = 0.25f;
cloudModelData.shapeFactor = 0.9f;
cloudModelData.shapeScale = 3.0f;
cloudModelData.erosionFactor = 0.9f;
cloudModelData.erosionScale = 61.4f;
cloudModelData.erosionNoise = VolumetricClouds.CloudErosionNoise.Perlin32;
return;
}
case VolumetricClouds.CloudPresets.Cloudy:
{
cloudModelData.densityMultiplier = 0.3f;
cloudModelData.shapeFactor = 0.9f;
cloudModelData.shapeScale = 5.0f;
cloudModelData.erosionFactor = 0.95f;
cloudModelData.erosionScale = 87.7f;
cloudModelData.erosionNoise = VolumetricClouds.CloudErosionNoise.Perlin32;
return;
}
case VolumetricClouds.CloudPresets.Overcast:
{
cloudModelData.densityMultiplier = 0.3f;
cloudModelData.shapeFactor = 0.6f;
cloudModelData.shapeScale = 6.0f;
cloudModelData.erosionFactor = 0.75f;
cloudModelData.erosionScale = 87.2f;
cloudModelData.erosionNoise = VolumetricClouds.CloudErosionNoise.Perlin32;
return;
}
case VolumetricClouds.CloudPresets.Stormy:
{
cloudModelData.densityMultiplier = 0.3f;
cloudModelData.shapeFactor = 0.85f;
cloudModelData.shapeScale = 3.0f;
cloudModelData.erosionFactor = 0.9f;
cloudModelData.erosionScale = 57.9f;
cloudModelData.erosionNoise = VolumetricClouds.CloudErosionNoise.Perlin32;
return;
}
}
// Default unused values
cloudModelData.densityMultiplier = 0.0f;
cloudModelData.shapeFactor = 0.0f;
cloudModelData.shapeScale = 0.0f;
cloudModelData.erosionFactor = 0.0f;
cloudModelData.erosionScale = 0.0f;
cloudModelData.erosionNoise = VolumetricClouds.CloudErosionNoise.Perlin32;
}
void PrepareVolumetricCloudsSkyLowPassData(RenderGraph renderGraph, RenderGraphBuilder builder, HDCamera hdCamera, int width, int height, Matrix4x4[] pixelCoordToViewDir, CubemapFace cubemapFace, VolumetricClouds settings, VolumetricCloudsSkyLowPassData data)
{
// Compute the cloud model data
CloudModelData cloudModelData = GetCloudModelData(settings);
// Fill the common data
FillVolumetricCloudsCommonData(false, settings, TVolumetricCloudsCameraType.Sky, in cloudModelData, ref data.commonData);
// We need to make sure that the allocated size of the history buffers and the dispatch size are perfectly equal.
// The ideal approach would be to have a function for that returns the converted size from a viewport and texture size.
// but for now we do it like this.
// Final resolution at which the effect should be exported
data.finalWidth = width;
data.finalHeight = height;
// Intermediate resolution at which the effect is accumulated
data.intermediateWidth = Mathf.RoundToInt(0.5f * width);
data.intermediateHeight = Mathf.RoundToInt(0.5f * height);
// Resolution at which the effect is traced
data.traceWidth = Mathf.RoundToInt(0.25f * width);
data.traceHeight = Mathf.RoundToInt(0.25f * height);
// Sky
data.cubemapFace = cubemapFace;
data.cloudCombinePass = m_CloudCombinePass;
// Kernels
data.renderKernel = m_CloudRenderKernel;
data.preUpscaleKernel = m_PreUpscaleCloudsSkyKernel;
data.finalUpscaleKernel = m_UpscaleAndCombineCloudsSkyKernel;
data.pixelCoordToViewDir = pixelCoordToViewDir;
// Update the constant buffer
VolumetricCloudsCameraData cameraData;
cameraData.cameraType = data.commonData.cameraType;
cameraData.traceWidth = data.traceWidth;
cameraData.traceHeight = data.traceHeight;
cameraData.intermediateWidth = data.intermediateWidth;
cameraData.intermediateHeight = data.intermediateHeight;
cameraData.finalWidth = data.finalWidth;
cameraData.finalHeight = data.finalHeight;
cameraData.viewCount = 1;
cameraData.enableExposureControl = data.commonData.enableExposureControl;
cameraData.lowResolution = true;
cameraData.enableIntegration = false;
UpdateShaderVariableslClouds(ref data.commonData.cloudsCB, hdCamera, settings, cameraData, cloudModelData, false);
int skyResolution = (int)m_Asset.currentPlatformRenderPipelineSettings.lightLoopSettings.skyReflectionSize;
data.intermediateLightingBuffer = builder.CreateTransientTexture(GetVolumetricCloudsIntermediateLightingBufferDesc());
data.intermediateDepthBuffer = builder.CreateTransientTexture(GetVolumetricCloudsIntermediateDepthBufferDesc());
data.output = builder.WriteTexture(renderGraph.CreateTexture(GetVolumetricCloudsIntermediateCubeTextureDesc()));
data.maxZMask = builder.ReadTexture(renderGraph.defaultResources.blackTextureXR);
data.ambientProbeBuffer = builder.ReadComputeBuffer(renderGraph.ImportComputeBuffer(m_CloudsProbeBuffer));
}
void PrepareVolumetricCloudsSkyHighPassData(RenderGraph renderGraph, RenderGraphBuilder builder, HDCamera hdCamera, int width, int height, Matrix4x4[] pixelCoordToViewDir, CubemapFace cubemapFace, VolumetricClouds settings, TextureHandle output, VolumetricCloudsSkyHighPassData data)
{
// Compute the cloud model data
CloudModelData cloudModelData = GetCloudModelData(settings);
// Fill the common data
FillVolumetricCloudsCommonData(false, settings, TVolumetricCloudsCameraType.Sky, in cloudModelData, ref data.commonData);
// If this is a baked reflection, we run everything at full res
data.finalWidth = width;
data.finalHeight = height;
// Sky
data.cubemapFace = cubemapFace;
data.cloudCombinePass = m_CloudCombinePass;
// Compute shader and kernels
data.renderKernel = m_CloudRenderKernel;
data.combineKernel = m_CombineCloudsSkyKernel;
data.pixelCoordToViewDir = pixelCoordToViewDir;
// Update the constant buffer
VolumetricCloudsCameraData cameraData;
cameraData.cameraType = data.commonData.cameraType;
cameraData.traceWidth = data.finalWidth;
cameraData.traceHeight = data.finalHeight;
cameraData.intermediateWidth = data.finalWidth;
cameraData.intermediateHeight = data.finalHeight;
cameraData.finalWidth = data.finalWidth;
cameraData.finalHeight = data.finalHeight;
cameraData.viewCount = 1;
cameraData.enableExposureControl = data.commonData.enableExposureControl;
cameraData.lowResolution = false;
cameraData.enableIntegration = false;
UpdateShaderVariableslClouds(ref data.commonData.cloudsCB, hdCamera, settings, cameraData, cloudModelData, false);
int skyResolution = (int)m_Asset.currentPlatformRenderPipelineSettings.lightLoopSettings.skyReflectionSize;
data.intermediateLightingBuffer0 = builder.CreateTransientTexture(GetVolumetricCloudsIntermediateLightingBufferDesc());
data.intermediateDepthBuffer = builder.CreateTransientTexture(GetVolumetricCloudsIntermediateDepthBufferDesc());
if (SystemInfo.graphicsDeviceType == GraphicsDeviceType.Metal)
{
data.intermediateLightingBuffer1 = builder.CreateTransientTexture(GetVolumetricCloudsIntermediateLightingBufferDesc());
data.output = builder.ReadWriteTexture(output);
}
else
{
data.output = builder.WriteTexture(output);
}
data.maxZMask = builder.ReadTexture(renderGraph.defaultResources.blackTextureXR);
data.ambientProbeBuffer = builder.ReadComputeBuffer(renderGraph.ImportComputeBuffer(m_CloudsProbeBuffer));
}
VolumetricCloudsParameters_FullResolution PrepareVolumetricCloudsParameters_FullResolution(HDCamera hdCamera, int width, int height, int viewCount, bool exposureControl, VolumetricClouds settings, TVolumetricCloudsCameraType cameraType)
{
VolumetricCloudsParameters_FullResolution parameters = new VolumetricCloudsParameters_FullResolution();
// Compute the cloud model data
CloudModelData cloudModelData = GetCloudModelData(settings);
// Fill the common data
FillVolumetricCloudsCommonData(exposureControl, settings, cameraType, in cloudModelData, ref parameters.commonData);
// If this is a baked reflection, we run everything at full res
parameters.finalWidth = width;
parameters.finalHeight = height;
parameters.viewCount = viewCount;
// MSAA support
parameters.needsTemporaryBuffer = hdCamera.msaaEnabled;
parameters.cloudCombinePass = m_CloudCombinePass;
parameters.needExtraColorBufferCopy = (GetColorBufferFormat() == GraphicsFormat.B10G11R11_UFloatPack32 &&
// On PC and Metal, but not on console.
(SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D11 ||
SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D12 ||
SystemInfo.graphicsDeviceType == GraphicsDeviceType.Metal ||
SystemInfo.graphicsDeviceType == GraphicsDeviceType.Vulkan));
// In case of MSAA, we no longer require the preliminary copy as there is no longer a need for RW of the color buffer.
parameters.needExtraColorBufferCopy &= !parameters.needsTemporaryBuffer;
// Compute shader and kernels
parameters.renderKernel = m_CloudRenderKernel;
parameters.combineKernel = parameters.needExtraColorBufferCopy ? m_CombineCloudsKernelColorCopy : m_CombineCloudsKernelColorRW;
// Update the constant buffer
VolumetricCloudsCameraData cameraData;
cameraData.cameraType = parameters.commonData.cameraType;
cameraData.traceWidth = parameters.finalWidth;
cameraData.traceHeight = parameters.finalHeight;
cameraData.intermediateWidth = parameters.finalWidth;
cameraData.intermediateHeight = parameters.finalHeight;
cameraData.finalWidth = parameters.finalWidth;
cameraData.finalHeight = parameters.finalHeight;
cameraData.viewCount = parameters.viewCount;
cameraData.enableExposureControl = parameters.commonData.enableExposureControl;
cameraData.lowResolution = false;
cameraData.enableIntegration = true;
UpdateShaderVariableslClouds(ref parameters.commonData.cloudsCB, hdCamera, settings, cameraData, cloudModelData, false);
return(parameters);
}
VolumetricCloudsParameters_Accumulation PrepareVolumetricCloudsParameters_Accumulation(HDCamera hdCamera, VolumetricClouds settings, TVolumetricCloudsCameraType cameraType, bool historyValidity)
{
VolumetricCloudsParameters_Accumulation parameters = new VolumetricCloudsParameters_Accumulation();
// Compute the cloud model data
CloudModelData cloudModelData = GetCloudModelData(settings);
// Fill the common data
FillVolumetricCloudsCommonData(hdCamera.exposureControlFS, settings, cameraType, in cloudModelData, ref parameters.commonData);
// We need to make sure that the allocated size of the history buffers and the dispatch size are perfectly equal.
// The ideal approach would be to have a function for that returns the converted size from a viewport and texture size.
// but for now we do it like this.
// Final resolution at which the effect should be exported
parameters.finalWidth = hdCamera.actualWidth;
parameters.finalHeight = hdCamera.actualHeight;
// Intermediate resolution at which the effect is accumulated
parameters.intermediateWidth = Mathf.RoundToInt(0.5f * hdCamera.actualWidth);
parameters.intermediateHeight = Mathf.RoundToInt(0.5f * hdCamera.actualHeight);
// Resolution at which the effect is traced
parameters.traceWidth = Mathf.RoundToInt(0.25f * hdCamera.actualWidth);
parameters.traceHeight = Mathf.RoundToInt(0.25f * hdCamera.actualHeight);
parameters.viewCount = hdCamera.viewCount;
parameters.previousViewportSize = hdCamera.historyRTHandleProperties.previousViewportSize;
parameters.historyValidity = historyValidity;
// MSAA support
parameters.needsTemporaryBuffer = hdCamera.msaaEnabled;
parameters.cloudCombinePass = m_CloudCombinePass;
parameters.needExtraColorBufferCopy = (GetColorBufferFormat() == GraphicsFormat.B10G11R11_UFloatPack32 &&
// On PC and Metal, but not on console.
(SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D11 ||
SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D12 ||
SystemInfo.graphicsDeviceType == GraphicsDeviceType.Metal ||
SystemInfo.graphicsDeviceType == GraphicsDeviceType.Vulkan));
// In case of MSAA, we no longer require the preliminary copy as there is no longer a need for RW of the color buffer.
parameters.needExtraColorBufferCopy &= !parameters.needsTemporaryBuffer;
// Compute shader and kernels
parameters.convertObliqueDepthKernel = m_ConvertObliqueDepthKernel;
parameters.depthDownscaleKernel = m_CloudDownscaleDepthKernel;
parameters.renderKernel = m_CloudRenderKernel;
parameters.reprojectKernel = settings.ghostingReduction.value ? m_ReprojectCloudsRejectionKernel : m_ReprojectCloudsKernel;
parameters.upscaleAndCombineKernel = parameters.needExtraColorBufferCopy ? m_UpscaleAndCombineCloudsKernelColorCopy : m_UpscaleAndCombineCloudsKernelColorRW;
// Update the constant buffer
VolumetricCloudsCameraData cameraData;
cameraData.cameraType = parameters.commonData.cameraType;
cameraData.traceWidth = parameters.traceWidth;
cameraData.traceHeight = parameters.traceHeight;
cameraData.intermediateWidth = parameters.intermediateWidth;
cameraData.intermediateHeight = parameters.intermediateHeight;
cameraData.finalWidth = parameters.finalWidth;
cameraData.finalHeight = parameters.finalHeight;
cameraData.viewCount = parameters.viewCount;
cameraData.enableExposureControl = parameters.commonData.enableExposureControl;
cameraData.lowResolution = true;
cameraData.enableIntegration = true;
UpdateShaderVariableslClouds(ref parameters.commonData.cloudsCB, hdCamera, settings, cameraData, cloudModelData, false);
// If this is a default camera, we want the improved blending, otherwise we don't (in the case of a planar)
parameters.commonData.cloudsCB._ImprovedTransmittanceBlend = parameters.commonData.cameraType == TVolumetricCloudsCameraType.Default ? 1 : 0;
parameters.commonData.cloudsCB._CubicTransmittance = parameters.commonData.cameraType == TVolumetricCloudsCameraType.Default && hdCamera.msaaEnabled ? 1 : 0;
return(parameters);
}
VolumetricCloudsParameters_LowResolution PrepareVolumetricCloudsParameters_LowResolution(HDCamera hdCamera, int width, int height, int viewCount, bool exposureControl, VolumetricClouds settings, TVolumetricCloudsCameraType cameraType)
{
VolumetricCloudsParameters_LowResolution parameters = new VolumetricCloudsParameters_LowResolution();
// Compute the cloud model data
CloudModelData cloudModelData = GetCloudModelData(settings);
// Fill the common data
FillVolumetricCloudsCommonData(exposureControl, settings, cameraType, in cloudModelData, ref parameters.commonData);
// We need to make sure that the allocated size of the history buffers and the dispatch size are perfectly equal.
// The ideal approach would be to have a function for that returns the converted size from a viewport and texture size.
// but for now we do it like this.
// Final resolution at which the effect should be exported
parameters.finalWidth = width;
parameters.finalHeight = height;
// Intermediate resolution at which the effect is accumulated
parameters.intermediateWidth = Mathf.RoundToInt(0.5f * width);
parameters.intermediateHeight = Mathf.RoundToInt(0.5f * height);
// Resolution at which the effect is traced
parameters.traceWidth = Mathf.RoundToInt(0.25f * width);
parameters.traceHeight = Mathf.RoundToInt(0.25f * height);
parameters.viewCount = viewCount;
// MSAA support
parameters.needsTemporaryBuffer = hdCamera.msaaEnabled;
parameters.cloudCombinePass = m_CloudCombinePass;
parameters.needExtraColorBufferCopy = (GetColorBufferFormat() == GraphicsFormat.B10G11R11_UFloatPack32 &&
// On PC and Metal, but not on console.
(SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D11 ||
SystemInfo.graphicsDeviceType == GraphicsDeviceType.Direct3D12 ||
SystemInfo.graphicsDeviceType == GraphicsDeviceType.Metal ||
SystemInfo.graphicsDeviceType == GraphicsDeviceType.Vulkan));
// In case of MSAA, we no longer require the preliminary copy as there is no longer a need for RW of the color buffer.
parameters.needExtraColorBufferCopy &= !parameters.needsTemporaryBuffer;
// Compute shader and kernels
parameters.depthDownscaleKernel = m_CloudDownscaleDepthKernel;
parameters.renderKernel = m_CloudRenderKernel;
parameters.preUpscaleKernel = m_PreUpscaleCloudsKernel;
parameters.upscaleAndCombineKernel = parameters.needExtraColorBufferCopy ? m_UpscaleAndCombineCloudsKernelColorCopy : m_UpscaleAndCombineCloudsKernelColorRW;
// Update the constant buffer
VolumetricCloudsCameraData cameraData;
cameraData.cameraType = parameters.commonData.cameraType;
cameraData.traceWidth = parameters.traceWidth;
cameraData.traceHeight = parameters.traceHeight;
cameraData.intermediateWidth = parameters.intermediateWidth;
cameraData.intermediateHeight = parameters.intermediateHeight;
cameraData.finalWidth = parameters.finalWidth;
cameraData.finalHeight = parameters.finalHeight;
cameraData.viewCount = parameters.viewCount;
cameraData.enableExposureControl = parameters.commonData.enableExposureControl;
cameraData.lowResolution = true;
cameraData.enableIntegration = false;
UpdateShaderVariableslClouds(ref parameters.commonData.cloudsCB, hdCamera, settings, cameraData, cloudModelData, false);
return(parameters);
}
