public void RenderShadows(ScriptableRenderContext renderContext, CommandBuffer cmd, CullingResults cullResults, HDCamera hdCamera)
{
// Avoid to do any commands if there is no shadow to draw
if (m_ShadowRequestCount == 0)
{
return;
}
// TODO remove DrawShadowSettings, lightIndex and splitData when scriptable culling is available
ShadowDrawingSettings dss = new ShadowDrawingSettings(cullResults, 0);
dss.useRenderingLayerMaskTest = hdCamera.frameSettings.IsEnabled(FrameSettingsField.LightLayers);
// Clear atlas render targets and draw shadows
using (new ProfilingSample(cmd, "Punctual Lights Shadows rendering", CustomSamplerId.RenderShadows.GetSampler()))
{
m_Atlas.RenderShadows(renderContext, cmd, dss);
}
using (new ProfilingSample(cmd, "Directional Light Shadows rendering", CustomSamplerId.RenderShadows.GetSampler()))
{
m_CascadeAtlas.RenderShadows(renderContext, cmd, dss);
}
using (new ProfilingSample(cmd, "Area Light Shadows rendering", CustomSamplerId.RenderShadows.GetSampler()))
{
m_AreaLightShadowAtlas.RenderShadows(renderContext, cmd, dss);
if (m_AreaLightShadowAtlas.HasBlurredEVSM())
{
m_AreaLightShadowAtlas.AreaShadowBlurMoments(cmd, hdCamera);
}
}
// If the shadow algorithm is the improved moment shadow
if (GetDirectionalShadowAlgorithm() == DirectionalShadowAlgorithm.IMS)
{
m_CascadeAtlas.ComputeMomentShadows(cmd, hdCamera);
}
}
HDShadowData CreateShadowData(HDShadowRequest shadowRequest, HDShadowAtlas atlas)
{
HDShadowData data = new HDShadowData();
var devProj = shadowRequest.deviceProjection;
var view = shadowRequest.view;
data.proj = new Vector4(devProj.m00, devProj.m11, devProj.m22, devProj.m23);
data.pos = shadowRequest.position;
data.rot0 = new Vector3(view.m00, view.m01, view.m02);
data.rot1 = new Vector3(view.m10, view.m11, view.m12);
data.rot2 = new Vector3(view.m20, view.m21, view.m22);
data.shadowToWorld = shadowRequest.shadowToWorld;
data.cacheTranslationDelta = new Vector3(0.0f, 0.0f, 0.0f);
// Compute the scale and offset (between 0 and 1) for the atlas coordinates
float rWidth = 1.0f / atlas.width;
float rHeight = 1.0f / atlas.height;
data.atlasOffset = Vector2.Scale(new Vector2(rWidth, rHeight), new Vector2(shadowRequest.atlasViewport.x, shadowRequest.atlasViewport.y));
data.shadowMapSize = new Vector4(shadowRequest.atlasViewport.width, shadowRequest.atlasViewport.height, 1.0f / shadowRequest.atlasViewport.width, 1.0f / shadowRequest.atlasViewport.height);
data.viewBias = shadowRequest.viewBias;
data.normalBias = shadowRequest.normalBias;
data.flags = shadowRequest.flags;
data.edgeTolerance = shadowRequest.edgeTolerance;
data.shadowFilterParams0.x = shadowRequest.shadowSoftness;
data.shadowFilterParams0.y = HDShadowUtils.Asfloat(shadowRequest.blockerSampleCount);
data.shadowFilterParams0.z = HDShadowUtils.Asfloat(shadowRequest.filterSampleCount);
data.shadowFilterParams0.w = shadowRequest.minFilterSize;
var hdAsset = (GraphicsSettings.renderPipelineAsset as HDRenderPipelineAsset);
if (hdAsset.currentPlatformRenderPipelineSettings.hdShadowInitParams.shadowQuality == HDShadowQuality.VeryHigh && shadowRequest.lightType == (int)LightType.Directional)
{
data.shadowFilterParams0.x = shadowRequest.kernelSize;
data.shadowFilterParams0.y = shadowRequest.lightAngle;
data.shadowFilterParams0.z = shadowRequest.maxDepthBias;
}
if (atlas.HasBlurredEVSM())
{
data.shadowFilterParams0 = shadowRequest.evsmParams;
}
return(data);
}