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Renamed properly buffer pyramid variables

/main
Frédéric Vauchelles 7 年前
当前提交
253790d4
共有 6 个文件被更改,包括 37 次插入31 次删除
  1. 12
      ScriptableRenderPipeline/HDRenderPipeline/HDRP/Debug/DebugDisplay.cs
  2. 2
      ScriptableRenderPipeline/HDRenderPipeline/HDRP/HDRenderPipeline.cs
  3. 10
      ScriptableRenderPipeline/HDRenderPipeline/HDRP/HDStringConstants.cs
  4. 22
      ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/Lit/Lit.hlsl
  5. 10
      ScriptableRenderPipeline/HDRenderPipeline/HDRP/RenderPipelineResources/ApplyDistorsion.compute
  6. 12
      ScriptableRenderPipeline/HDRenderPipeline/HDRP/RenderPipelineResources/BufferPyramid.cs

12
ScriptableRenderPipeline/HDRenderPipeline/HDRP/Debug/DebugDisplay.cs


{
case FullScreenDebugMode.FinalColorPyramid:
case FullScreenDebugMode.PreRefractionColorPyramid:
id = HDShaderIDs._GaussianPyramidColorMipSize;
id = HDShaderIDs._ColorPyramidScale;
id = HDShaderIDs._DepthPyramidMipSize;
id = HDShaderIDs._DepthPyramidScale;
break;
}
var size = Shader.GetGlobalVector(id);

{
case FullScreenDebugMode.FinalColorPyramid:
case FullScreenDebugMode.PreRefractionColorPyramid:
id = HDShaderIDs._GaussianPyramidColorMipSize;
id = HDShaderIDs._ColorPyramidScale;
id = HDShaderIDs._DepthPyramidMipSize;
id = HDShaderIDs._DepthPyramidScale;
break;
}
var size = Shader.GetGlobalVector(id);

{
case FullScreenDebugMode.FinalColorPyramid:
case FullScreenDebugMode.PreRefractionColorPyramid:
id = HDShaderIDs._GaussianPyramidColorMipSize;
id = HDShaderIDs._ColorPyramidScale;
id = HDShaderIDs._DepthPyramidMipSize;
id = HDShaderIDs._DepthPyramidScale;
break;
}
var size = Shader.GetGlobalVector(id);

2
ScriptableRenderPipeline/HDRenderPipeline/HDRP/HDRenderPipeline.cs


uint x, y, z;
m_applyDistortionCS.GetKernelThreadGroupSizes(m_applyDistortionKernel, out x, out y, out z);
cmd.SetComputeTextureParam(m_applyDistortionCS, m_applyDistortionKernel, HDShaderIDs._DistortionTexture, m_DistortionBuffer);
cmd.SetComputeTextureParam(m_applyDistortionCS, m_applyDistortionKernel, HDShaderIDs._GaussianPyramidColorTexture, m_BufferPyramid.colorPyramid);
cmd.SetComputeTextureParam(m_applyDistortionCS, m_applyDistortionKernel, HDShaderIDs._ColorPyramidTexture, m_BufferPyramid.colorPyramid);
cmd.SetComputeTextureParam(m_applyDistortionCS, m_applyDistortionKernel, HDShaderIDs._CameraColorTexture, m_CameraColorBuffer);
cmd.SetComputeVectorParam(m_applyDistortionCS, HDShaderIDs._Size, size);
cmd.SetComputeVectorParam(m_applyDistortionCS, HDShaderIDs._ZBufferParams, Shader.GetGlobalVector(HDShaderIDs._ZBufferParams));

10
ScriptableRenderPipeline/HDRenderPipeline/HDRP/HDStringConstants.cs


public static readonly int _VelocityTexture = Shader.PropertyToID("_VelocityTexture");
public static readonly int _ShadowMaskTexture = Shader.PropertyToID("_ShadowMaskTexture");
public static readonly int _DistortionTexture = Shader.PropertyToID("_DistortionTexture");
public static readonly int _GaussianPyramidColorTexture = Shader.PropertyToID("_GaussianPyramidColorTexture");
public static readonly int _PyramidDepthTexture = Shader.PropertyToID("_PyramidDepthTexture");
public static readonly int _GaussianPyramidColorMipSize = Shader.PropertyToID("_GaussianPyramidColorMipSize");
public static readonly int _DepthPyramidMipSize = Shader.PropertyToID("_PyramidDepthMipSize");
public static readonly int _ColorPyramidTexture = Shader.PropertyToID("_ColorPyramidTexture");
public static readonly int _DepthPyramidTexture = Shader.PropertyToID("_DepthPyramidTexture");
public static readonly int _ColorPyramidSize = Shader.PropertyToID("_ColorPyramidSize");
public static readonly int _ColorPyramidScale = Shader.PropertyToID("_ColorPyramidScale");
public static readonly int _DepthPyramidSize = Shader.PropertyToID("_DepthPyramidSize");
public static readonly int _DepthPyramidScale = Shader.PropertyToID("_DepthPyramidScale");
public static readonly int _DebugColorPickerTexture = Shader.PropertyToID("_DebugColorPickerTexture");
public static readonly int _ColorPickerParam = Shader.PropertyToID("_ColorPickerParam");

22
ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/Lit/Lit.hlsl


// Rough refraction texture
// Color pyramid (width, height, lodcount, Unused)
TEXTURE2D(_GaussianPyramidColorTexture);
TEXTURE2D(_ColorPyramidTexture);
TEXTURE2D(_PyramidDepthTexture);
TEXTURE2D(_DepthPyramidTexture);
float4 _GaussianPyramidColorMipSize; // (x,y) = PyramidToScreenScale, z = lodCount
float4 _PyramidDepthMipSize;
float4 _ColorPyramidSize; // (x,y) = Actual Pixel Size, (z,w) = 1 / Actual Pixel Size
float4 _DepthPyramidSize; // (x,y) = Actual Pixel Size, (z,w) = 1 / Actual Pixel Size
float4 _ColorPyramidScale; // (x,y) = Screen Scale, z = lod count, w = unused
float4 _DepthPyramidScale; // (x,y) = Screen Scale, z = lod count, w = unused
CBUFFER_END
// Ambient occlusion texture

// we approximate the scene as a plane (back plane) with normal -V at the depth hit point.
// (We avoid to raymarch the depth texture to get the refracted point.)
uint2 depthSize = uint2(_PyramidDepthMipSize.xy);
uint2 depthSize = uint2(_DepthPyramidSize.xy);
float pyramidDepth = LOAD_TEXTURE2D_LOD(_PyramidDepthTexture, posInputs.positionNDC * (depthSize >> 2), 2).r;
float pyramidDepth = LOAD_TEXTURE2D_LOD(_DepthPyramidTexture, posInputs.positionNDC * (depthSize >> 2), 2).r;
float depth = LinearEyeDepth(pyramidDepth, _ZBufferParams);
// Distance from point to the back plane

preLightData.transparentTransmittance = exp(-bsdfData.absorptionCoefficient * refraction.dist);
// Empirical remap to try to match a bit the refraction probe blurring for the fallback
// Use IblPerceptualRoughness so we can handle approx of clear coat.
preLightData.transparentSSMipLevel = sqrt(preLightData.iblPerceptualRoughness) * uint(_GaussianPyramidColorMipSize.z);
preLightData.transparentSSMipLevel = sqrt(preLightData.iblPerceptualRoughness) * uint(_ColorPyramidScale.z);
#endif
return preLightData;

// Calculate screen space coordinates of refracted point in back plane
float2 refractedBackPointNDC = ComputeNormalizedDeviceCoordinates(refractedBackPointWS, UNITY_MATRIX_VP);
uint2 depthSize = uint2(_PyramidDepthMipSize.xy);
float refractedBackPointDepth = LinearEyeDepth(LOAD_TEXTURE2D_LOD(_PyramidDepthTexture, refractedBackPointNDC * depthSize, 0).r, _ZBufferParams);
uint2 depthSize = uint2(_DepthPyramidSize.xy);
float refractedBackPointDepth = LinearEyeDepth(LOAD_TEXTURE2D_LOD(_DepthPyramidTexture, refractedBackPointNDC * depthSize, 0).r, _ZBufferParams);
// Exit if texel is out of color buffer
// Or if the texel is from an object in front of the object

}
// Map the roughness to the correct mip map level of the color pyramid
lighting.specularTransmitted = SAMPLE_TEXTURE2D_LOD(_GaussianPyramidColorTexture, s_trilinear_clamp_sampler, refractedBackPointNDC * _GaussianPyramidColorMipSize.xy, preLightData.transparentSSMipLevel).rgb;
lighting.specularTransmitted = SAMPLE_TEXTURE2D_LOD(_ColorPyramidTexture, s_trilinear_clamp_sampler, refractedBackPointNDC * _ColorPyramidScale.xy, preLightData.transparentSSMipLevel).rgb;
// Beer-Lamber law for absorption
lighting.specularTransmitted *= preLightData.transparentTransmittance;

10
ScriptableRenderPipeline/HDRenderPipeline/HDRP/RenderPipelineResources/ApplyDistorsion.compute


#pragma only_renderers d3d11 ps4 xboxone vulkan metal
TEXTURE2D(_DistortionTexture);
TEXTURE2D(_GaussianPyramidColorTexture);
TEXTURE2D(_ColorPyramidTexture);
SamplerState sampler_GaussianPyramidColorTexture;
SamplerState sampler_ColorPyramidTexture;
float4 _GaussianPyramidColorMipSize;
float4 _ColorPyramidScale;
CBUFFER_END
#pragma kernel KMain

// Get source pixel for distortion
float2 distordedUV = float2(dispatchThreadId + int2(distortion * _FetchBias)) * _Size.zw;
float mip = (_GaussianPyramidColorMipSize.z - 1) * clamp(distortionBlur, 0.0, 1.0);
float4 sampled = SAMPLE_TEXTURE2D_LOD(_GaussianPyramidColorTexture, sampler_GaussianPyramidColorTexture, distordedUV, mip);
float mip = (_ColorPyramidScale.z - 1) * clamp(distortionBlur, 0.0, 1.0);
float4 sampled = SAMPLE_TEXTURE2D_LOD(_ColorPyramidTexture, sampler_ColorPyramidTexture, distordedUV, mip);
_CameraColorTexture[dispatchThreadId] = sampled;
}

12
ScriptableRenderPipeline/HDRenderPipeline/HDRP/RenderPipelineResources/BufferPyramid.cs


int lodCount = GetPyramidLodCount(hdCamera);
UpdatePyramidMips(hdCamera, m_DepthPyramidBuffer.rt.format, m_DepthPyramidMips, lodCount);
cmd.SetGlobalVector(HDShaderIDs._DepthPyramidMipSize, new Vector4(hdCamera.actualWidth, hdCamera.actualHeight, lodCount, 0.0f));
Vector2 scale = GetPyramidToScreenScale(hdCamera);
cmd.SetGlobalVector(HDShaderIDs._DepthPyramidSize, new Vector4(hdCamera.actualWidth, hdCamera.actualHeight, 1f / hdCamera.actualWidth, 1f / hdCamera.actualHeight));
cmd.SetGlobalVector(HDShaderIDs._DepthPyramidScale, new Vector4(scale.x, scale.y, lodCount, 0.0f));
Vector2 scale = GetPyramidToScreenScale(hdCamera);
RTHandle src = m_DepthPyramidBuffer;
for (var i = 0; i < lodCount; i++)

src = dest;
}
cmd.SetGlobalTexture(HDShaderIDs._PyramidDepthTexture, m_DepthPyramidBuffer);
cmd.SetGlobalTexture(HDShaderIDs._DepthPyramidTexture, m_DepthPyramidBuffer);
}
public void RenderColorPyramid(

UpdatePyramidMips(hdCamera, m_ColorPyramidBuffer.rt.format, m_ColorPyramidMips, lodCount);
Vector2 scale = GetPyramidToScreenScale(hdCamera);
cmd.SetGlobalVector(HDShaderIDs._GaussianPyramidColorMipSize, new Vector4(scale.x, scale.y, lodCount, 0.0f));
cmd.SetGlobalVector(HDShaderIDs._ColorPyramidSize, new Vector4(hdCamera.actualWidth, hdCamera.actualHeight, 1f / hdCamera.actualWidth, 1f / hdCamera.actualHeight));
cmd.SetGlobalVector(HDShaderIDs._ColorPyramidScale, new Vector4(scale.x, scale.y, lodCount, 0.0f));
// Copy mip 0
// Here we blit a "camera space" texture into a square texture but we want to keep the original viewport.

src = dest;
}
cmd.SetGlobalTexture(HDShaderIDs._GaussianPyramidColorTexture, m_ColorPyramidBuffer);
cmd.SetGlobalTexture(HDShaderIDs._ColorPyramidTexture, m_ColorPyramidBuffer);
}
}
}
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