private HDCachedShadowManager()
{
punctualShadowAtlas = new HDCachedShadowAtlas(ShadowMapType.PunctualAtlas);
if (ShaderConfig.s_AreaLights == 1)
{
areaShadowAtlas = new HDCachedShadowAtlas(ShadowMapType.AreaLightAtlas);
}
}
internal ShadowBlitParameters PrepareShadowBlitParameters(HDCachedShadowAtlas cachedAtlas, Material blitMaterial, MaterialPropertyBlock blitMpb)
{
ShadowBlitParameters parameters = new ShadowBlitParameters();
parameters.requestsWaitingBlits = m_MixedRequestsPendingBlits;
parameters.blitMaterial = blitMaterial;
parameters.blitMaterialPropertyBlock = blitMpb;
parameters.cachedShadowAtlasSize = new Vector2Int(cachedAtlas.width, cachedAtlas.height);
return(parameters);
}
public void BlitCachedIntoAtlas(RenderGraph renderGraph, HDCachedShadowAtlas cachedAtlas, Material blitMaterial, string passName, HDProfileId profileID)
{
if (m_MixedRequestsPendingBlits.Count > 0)
{
using (var builder = renderGraph.AddRenderPass <BlitCachedShadowPassData>(passName, out var passData, ProfilingSampler.Get(profileID)))
{
passData.requestsWaitingBlits = m_MixedRequestsPendingBlits;
passData.blitMaterial = blitMaterial;
passData.cachedShadowAtlasSize = new Vector2Int(cachedAtlas.width, cachedAtlas.height);
passData.sourceCachedAtlas = builder.ReadTexture(cachedAtlas.GetOutputTexture(renderGraph));
passData.atlasTexture = builder.WriteTexture(GetOutputTexture(renderGraph));
builder.SetRenderFunc(
(BlitCachedShadowPassData data, RenderGraphContext ctx) =>
{
foreach (var request in data.requestsWaitingBlits)
{
var mpb = ctx.renderGraphPool.GetTempMaterialPropertyBlock();
ctx.cmd.SetRenderTarget(data.atlasTexture);
ctx.cmd.SetViewport(request.dynamicAtlasViewport);
Vector4 sourceScaleBias = new Vector4(request.cachedAtlasViewport.width / data.cachedShadowAtlasSize.x,
request.cachedAtlasViewport.height / data.cachedShadowAtlasSize.y,
request.cachedAtlasViewport.x / data.cachedShadowAtlasSize.x,
request.cachedAtlasViewport.y / data.cachedShadowAtlasSize.y);
mpb.SetTexture(HDShaderIDs._CachedShadowmapAtlas, data.sourceCachedAtlas);
mpb.SetVector(HDShaderIDs._BlitScaleBias, sourceScaleBias);
CoreUtils.DrawFullScreen(ctx.cmd, data.blitMaterial, mpb, 0);
}
data.requestsWaitingBlits.Clear();
});
}
}
}
