private void RenderCubemapGGXConvolution(CommandBuffer cmd, BuiltinSkyParameters builtinParams, SkySettings skyParams, Texture input, RenderTexture target)
{
using (new Utilities.ProfilingSample("Update Env: GGX Convolution", cmd))
{
int mipCount = 1 + (int)Mathf.Log(input.width, 2.0f);
if (mipCount < ((int)EnvConstants.SpecCubeLodStep + 1))
{
Debug.LogWarning("RenderCubemapGGXConvolution: Cubemap size is too small for GGX convolution, needs at least " + ((int)EnvConstants.SpecCubeLodStep + 1) + " mip levels");
return;
}
if (!m_iblFilterGgx.IsInitialized())
{
m_iblFilterGgx.Initialize(cmd);
}
// Copy the first mip
using (new Utilities.ProfilingSample("Copy Original Mip", cmd))
{
for (int f = 0; f < 6; f++)
{
cmd.CopyTexture(input, f, 0, target, f, 0);
}
}
using (new Utilities.ProfilingSample("GGX Convolution", cmd))
{
if (m_useMIS && m_iblFilterGgx.SupportMIS)
{
m_iblFilterGgx.FilterCubemapMIS(cmd, input, target, mipCount, m_SkyboxConditionalCdfRT, m_SkyboxMarginalRowCdfRT, m_CubemapFaceMesh);
}
else
{
m_iblFilterGgx.FilterCubemap(cmd, input, target, mipCount, m_CubemapFaceMesh);
}
}
}
}
private void RenderCubemapGGXConvolution(ScriptableRenderContext renderContext, BuiltinSkyParameters builtinParams, SkyParameters skyParams, Texture input, RenderTexture target)
{
using (new Utilities.ProfilingSample("Sky Pass: GGX Convolution", renderContext))
{
int mipCount = 1 + (int)Mathf.Log(input.width, 2.0f);
if (mipCount < ((int)EnvConstants.SpecCubeLodStep + 1))
{
Debug.LogWarning("RenderCubemapGGXConvolution: Cubemap size is too small for GGX convolution, needs at least " + ((int)EnvConstants.SpecCubeLodStep + 1) + " mip levels");
return;
}
if (!m_iblFilterGgx.IsInitialized())
{
m_iblFilterGgx.Initialize(renderContext);
}
// Copy the first mip
var cmd = new CommandBuffer {
name = ""
};
for (int f = 0; f < 6; f++)
{
cmd.CopyTexture(input, f, 0, target, f, 0);
}
renderContext.ExecuteCommandBuffer(cmd);
cmd.Dispose();
if (m_useMIS)
{
m_iblFilterGgx.FilterCubemapMIS(renderContext, input, target, mipCount, m_SkyboxConditionalCdfRT, m_SkyboxMarginalRowCdfRT, m_CubemapFaceMesh);
}
else
{
m_iblFilterGgx.FilterCubemap(renderContext, input, target, mipCount, m_CubemapFaceMesh);
}
}
}
