layout(constant_id = 0) const bool SPECULAR = true;
layout(constant_id = 1) const bool FUZZY_SHADOWS = true;
layout(constant_id = 2) const bool RAYTRACE_DEBUG = false;
layout(constant_id = 3) const uint SPECULAR_DOWNSAMPLING = 2;
layout(constant_id = 4) const uint SUPERSAMPLING = 1;