public LightCookieManager(HDRenderPipelineAsset hdAsset, int maxCacheSize)
{
// Keep track of the render pipeline asset
m_RenderPipelineAsset = hdAsset;
var hdResources = HDRenderPipeline.defaultAsset.renderPipelineResources;
// Create the texture cookie cache that we shall be using for the area lights
GlobalLightLoopSettings gLightLoopSettings = hdAsset.currentPlatformRenderPipelineSettings.lightLoopSettings;
// Also make sure to create the engine material that is used for the filtering
m_MaterialFilterAreaLights = CoreUtils.CreateEngineMaterial(hdResources.shaders.filterAreaLightCookiesPS);
int cookieCubeSize = gLightLoopSettings.cubeCookieTexArraySize;
int cookieAtlasSize = (int)gLightLoopSettings.cookieAtlasSize;
cookieFormat = (GraphicsFormat)gLightLoopSettings.cookieFormat;
cookieAtlasLastValidMip = gLightLoopSettings.cookieAtlasLastValidMip;
m_CookieAtlas = new PowerOfTwoTextureAtlas(cookieAtlasSize, gLightLoopSettings.cookieAtlasLastValidMip, cookieFormat, name: "Cookie Atlas (Punctual Lights)", useMipMap: true);
m_CubeToPanoMaterial = CoreUtils.CreateEngineMaterial(hdResources.shaders.cubeToPanoPS);
m_CubeCookieTexArray = new TextureCacheCubemap("Cookie");
int cookieCubeResolution = (int)gLightLoopSettings.pointCookieSize;
if (TextureCacheCubemap.GetApproxCacheSizeInByte(cookieCubeSize, cookieCubeResolution, 1) > HDRenderPipeline.k_MaxCacheSize)
{
cookieCubeSize = TextureCacheCubemap.GetMaxCacheSizeForWeightInByte(HDRenderPipeline.k_MaxCacheSize, cookieCubeResolution, 1);
}
// For now the cubemap cookie array format is hardcoded to R8G8B8A8 SRGB.
m_CubeCookieTexArray.AllocTextureArray(cookieCubeSize, cookieCubeResolution, cookieFormat, true, m_CubeToPanoMaterial);
}
internal static int GetMaxCacheSizeForWeightInByte(int weight, int resolution, int sliceSize)
{
return(TextureCacheCubemap.GetMaxCacheSizeForWeightInByte(weight, resolution, sliceSize));
}