/// <summary>
/// Draws the Shadow Matte settings. This is only available for Unlit materials.
/// </summary>
protected void DrawShadowMatteToggle()
{
uint exponent = 0b10000000; // 0 as exponent
uint mantissa = 0x007FFFFF;
float value = materials[0].GetFloat(HDMaterialProperties.kShadowMatteFilter);
uint uValue = HDShadowUtils.Asuint(value);
uint filter = uValue & mantissa;
bool shadowFilterPoint = (filter & (uint)LightFeatureFlags.Punctual) != 0;
bool shadowFilterDir = (filter & (uint)LightFeatureFlags.Directional) != 0;
bool shadowFilterRect = (filter & (uint)LightFeatureFlags.Area) != 0;
uint finalFlag = 0x00000000;
finalFlag |= EditorGUILayout.Toggle("Point/Spot Shadow", shadowFilterPoint) ? (uint)LightFeatureFlags.Punctual : 0x00000000u;
finalFlag |= EditorGUILayout.Toggle("Directional Shadow", shadowFilterDir) ? (uint)LightFeatureFlags.Directional : 0x00000000u;
finalFlag |= EditorGUILayout.Toggle("Area Shadow", shadowFilterRect) ? (uint)LightFeatureFlags.Area : 0x00000000u;
finalFlag &= mantissa;
finalFlag |= exponent;
materials[0].SetFloat(HDMaterialProperties.kShadowMatteFilter, HDShadowUtils.Asfloat(finalFlag));
}
public static void OnGUI(MaterialEditor materialEditor, MaterialProperty diffusionProfileAsset, MaterialProperty diffusionProfileHash, int profileIndex)
{
// We can't cache these fields because of several edge cases like undo/redo or pressing escape in the object picker
string guid = HDUtils.ConvertVector4ToGUID(diffusionProfileAsset.vectorValue);
DiffusionProfileSettings diffusionProfile = AssetDatabase.LoadAssetAtPath <DiffusionProfileSettings>(AssetDatabase.GUIDToAssetPath(guid));
// is it okay to do this every frame ?
EditorGUI.BeginChangeCheck();
diffusionProfile = (DiffusionProfileSettings)EditorGUILayout.ObjectField("Diffusion Profile", diffusionProfile, typeof(DiffusionProfileSettings), false);
if (EditorGUI.EndChangeCheck())
{
Vector4 newGuid = Vector4.zero;
float hash = 0;
if (diffusionProfile != null)
{
guid = AssetDatabase.AssetPathToGUID(AssetDatabase.GetAssetPath(diffusionProfile));
newGuid = HDUtils.ConvertGUIDToVector4(guid);
hash = HDShadowUtils.Asfloat(diffusionProfile.profile.hash);
}
// encode back GUID and it's hash
diffusionProfileAsset.vectorValue = newGuid;
diffusionProfileHash.floatValue = hash;
// Update external reference.
foreach (var target in materialEditor.targets)
{
MaterialExternalReferences matExternalRefs = MaterialExternalReferences.GetMaterialExternalReferences(target as Material);
if (matExternalRefs != null)
{
matExternalRefs.SetDiffusionProfileReference(profileIndex, diffusionProfile);
}
}
}
DrawDiffusionProfileWarning(diffusionProfile);
}
private static void SetDefaultDiffusionProfile(Material mat)
{
string matDiffProfile = HDUtils.ConvertVector4ToGUID(mat.GetVector("Diffusion_Profile_Asset"));
string guid = "";
long localID;
uint diffusionProfileHash = 0;
foreach (var diffusionProfileAsset in HDRenderPipelineGlobalSettings.instance.diffusionProfileSettingsList)
{
if (diffusionProfileAsset != null)
{
bool gotGuid = AssetDatabase.TryGetGUIDAndLocalFileIdentifier <DiffusionProfileSettings>(diffusionProfileAsset, out guid, out localID);
if (gotGuid && (diffusionProfileAsset.name.Equals(kDefaultDiffusionProfileName) || guid.Equals(matDiffProfile)))
{
diffusionProfileHash = diffusionProfileAsset.profile.hash;
break;
}
}
}
if (diffusionProfileHash == 0)
{
// If the user doesn't have a foliage diffusion profile defined, grab the foliage diffusion profile that comes with HD.
// This won't work until the user adds it to their default diffusion profiles list,
// but there is a nice "fix" button on the material to help with that.
DiffusionProfileSettings foliageSettings = AssetDatabase.LoadAssetAtPath <DiffusionProfileSettings>(HDUtils.GetHDRenderPipelinePath() + kFoliageDiffusionProfilePath);
if (AssetDatabase.TryGetGUIDAndLocalFileIdentifier <DiffusionProfileSettings>(foliageSettings, out guid, out localID))
{
diffusionProfileHash = foliageSettings.profile.hash;
}
}
if (diffusionProfileHash != 0)
{
mat.SetVector("Diffusion_Profile_Asset", HDUtils.ConvertGUIDToVector4(guid));
mat.SetFloat("Diffusion_Profile", HDShadowUtils.Asfloat(diffusionProfileHash));
}
}
internal override string GetPropertyBlockString()
{
uint hash = 0;
Vector4 asset = Vector4.zero;
if (value.isSet)
{
hash = value.asset.profile.hash;
asset = HDUtils.ConvertGUIDToVector4(AssetDatabase.AssetPathToGUID(AssetDatabase.GetAssetPath(value.asset)));
}
/// <summary>Float to string convertion function without any loss of precision</summary>
string f2s(float f) => System.Convert.ToDouble(f).ToString("0." + new string('#', 339), CultureInfo.InvariantCulture);
return
($@"[DiffusionProfile]{referenceName}(""{displayName}"", Float) = {f2s(HDShadowUtils.Asfloat(hash))}
[HideInInspector]{assetReferenceName}(""{displayName}"", Vector) = ({f2s(asset.x)}, {f2s(asset.y)}, {f2s(asset.z)}, {f2s(asset.w)})");
}
void ShaderSSSAndTransmissionInputGUI()
{
var hdPipeline = RenderPipelineManager.currentPipeline as HDRenderPipeline;
if (hdPipeline == null)
{
return;
}
using (var scope = new EditorGUI.ChangeCheckScope())
{
using (new EditorGUILayout.HorizontalScope())
{
// We can't cache these fields because of several edge cases like undo/redo or pressing escape in the object picker
string guid = HDUtils.ConvertVector4ToGUID(diffusionProfileAsset[m_LayerIndex].vectorValue);
DiffusionProfileSettings diffusionProfile = AssetDatabase.LoadAssetAtPath <DiffusionProfileSettings>(AssetDatabase.GUIDToAssetPath(guid));
// is it okay to do this every frame ?
using (var changeScope = new EditorGUI.ChangeCheckScope())
{
diffusionProfile = (DiffusionProfileSettings)EditorGUILayout.ObjectField(Styles.diffusionProfileText, diffusionProfile, typeof(DiffusionProfileSettings), false);
if (changeScope.changed)
{
Vector4 newGuid = Vector4.zero;
float hash = 0;
if (diffusionProfile != null)
{
guid = AssetDatabase.AssetPathToGUID(AssetDatabase.GetAssetPath(diffusionProfile));
newGuid = HDUtils.ConvertGUIDToVector4(guid);
hash = HDShadowUtils.Asfloat(diffusionProfile.profile.hash);
}
// encode back GUID and it's hash
diffusionProfileAsset[m_LayerIndex].vectorValue = newGuid;
diffusionProfileHash[m_LayerIndex].floatValue = hash;
}
}
}
}
// TODO: does not work with multi-selection
if ((int)materialID.floatValue == (int)MaterialId.LitSSS && materials[0].GetSurfaceType() != SurfaceType.Transparent)
{
materialEditor.ShaderProperty(subsurfaceMask[m_LayerIndex], Styles.subsurfaceMaskText);
materialEditor.TexturePropertySingleLine(Styles.subsurfaceMaskMapText, subsurfaceMaskMap[m_LayerIndex]);
}
if ((int)materialID.floatValue == (int)MaterialId.LitTranslucent ||
((int)materialID.floatValue == (int)MaterialId.LitSSS && transmissionEnable.floatValue > 0.0f))
{
materialEditor.TexturePropertySingleLine(Styles.thicknessMapText, thicknessMap[m_LayerIndex]);
if (thicknessMap[m_LayerIndex].textureValue != null)
{
// Display the remap of texture values.
Vector2 remap = thicknessRemap[m_LayerIndex].vectorValue;
EditorGUI.BeginChangeCheck();
EditorGUILayout.MinMaxSlider(Styles.thicknessRemapText, ref remap.x, ref remap.y, 0.0f, 1.0f);
if (EditorGUI.EndChangeCheck())
{
thicknessRemap[m_LayerIndex].vectorValue = remap;
}
}
else
{
// Allow the user to set the constant value of thickness if no thickness map is provided.
materialEditor.ShaderProperty(thickness[m_LayerIndex], Styles.thicknessText);
}
}
}
public void Denoise(CommandBuffer cmd, HDCamera hdCamera,
RTHandle noisyBuffer, RTHandle outputBuffer,
bool halfResolution = false, float historyValidity = 1.0f)
{
// Grab the global illumination volume component
var giSettings = hdCamera.volumeStack.GetComponent <UnityEngine.Rendering.HighDefinition.GlobalIllumination>();
var historyDepthBuffer = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.Depth);
var historyDepthBuffer1 = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.Depth1);
// If the depth textures are not available, we can't denoise
if (historyDepthBuffer == null || historyDepthBuffer1 == null)
{
HDUtils.BlitCameraTexture(cmd, noisyBuffer, outputBuffer);
return;
}
// Compute the dispatch parameters based on if we are half res or not
int tileSize = 8;
int numTilesX, numTilesY;
Vector4 halfScreenSize;
EvaluateDispatchParameters(hdCamera, halfResolution, tileSize, out numTilesX, out numTilesY, out halfScreenSize);
// Pick the right kernel to use
int m_KernelFilter = halfResolution ? m_SpatialFilterHalfKernel : m_SpatialFilterKernel;
// Bind the input scalars
var info = m_SharedRTManager.GetDepthBufferMipChainInfo();
firstMipOffset.Set(HDShadowUtils.Asfloat((uint)info.mipLevelOffsets[1].x), HDShadowUtils.Asfloat((uint)info.mipLevelOffsets[1].y));
cmd.SetComputeVectorParam(m_SSGIDenoiserCS, HDShaderIDs._DepthPyramidFirstMipLevelOffset, firstMipOffset);
cmd.SetComputeIntParam(m_SSGIDenoiserCS, HDShaderIDs._IndirectDiffuseSpatialFilter, giSettings.filterRadius);
// Inject half screen size if required
if (halfResolution)
{
cmd.SetComputeVectorParam(m_SSGIDenoiserCS, HDShaderIDs._HalfScreenSize, halfScreenSize);
}
// Bind the input buffers
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthTexture());
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._InputNoisyBuffer, noisyBuffer);
// Bind the output buffer
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._OutputFilteredBuffer, outputBuffer);
// Do the spatial pass
cmd.DispatchCompute(m_SSGIDenoiserCS, m_KernelFilter, numTilesX, numTilesY, hdCamera.viewCount);
// Grab the history buffer
RTHandle indirectDiffuseHistory = hdCamera.GetCurrentFrameRT((int)HDCameraFrameHistoryType.RaytracedIndirectDiffuseHF);
if (indirectDiffuseHistory == null)
{
indirectDiffuseHistory = hdCamera.AllocHistoryFrameRT((int)HDCameraFrameHistoryType.RaytracedIndirectDiffuseHF, IndirectDiffuseHistoryBufferAllocatorFunction, 1);
// clear it to black if this is the first pass to avoid nans
CoreUtils.SetRenderTarget(cmd, indirectDiffuseHistory, m_SharedRTManager.GetDepthStencilBuffer(), ClearFlag.Color, clearColor: Color.black);
}
// Pick the right kernel to use
m_KernelFilter = halfResolution ? m_TemporalFilterHalfKernel : m_TemporalFilterKernel;
// Bind the input buffers
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._DepthTexture, m_SharedRTManager.GetDepthTexture());
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._NormalBufferTexture, m_SharedRTManager.GetNormalBuffer());
cmd.SetComputeFloatParam(m_SSGIDenoiserCS, HDShaderIDs._HistoryValidity, historyValidity);
if (halfResolution)
{
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._HistoryDepthTexture, historyDepthBuffer1);
cmd.SetComputeVectorParam(m_SSGIDenoiserCS, HDShaderIDs._DepthPyramidFirstMipLevelOffset, firstMipOffset);
}
else
{
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._HistoryDepthTexture, historyDepthBuffer);
}
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._HistoryBuffer, indirectDiffuseHistory);
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._InputNoisyBuffer, outputBuffer);
// Bind the output buffer
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_KernelFilter, HDShaderIDs._OutputFilteredBuffer, noisyBuffer);
// Do the temporal pass
cmd.DispatchCompute(m_SSGIDenoiserCS, m_KernelFilter, numTilesX, numTilesY, hdCamera.viewCount);
// Copy the new version into the history buffer
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_CopyHistory, HDShaderIDs._InputNoisyBuffer, noisyBuffer);
cmd.SetComputeTextureParam(m_SSGIDenoiserCS, m_CopyHistory, HDShaderIDs._OutputFilteredBuffer, indirectDiffuseHistory);
cmd.DispatchCompute(m_SSGIDenoiserCS, m_CopyHistory, numTilesX, numTilesY, hdCamera.viewCount);
}
