SHADER_HSLBlendGPU "programs/HSLBlendGPU.frag" "BlendSrc" "BaseSrc" SHADER_HSLBlendGPU_ports "programs/HSLBlendGPU_ports.vert" isotropic bool bhue 1 bool bsat 1 bool blum 0 float balpha percent 1.0 0 1 bool bmask 0