It seems like Dreamworks had to move acceleration to GPU using CUDA and OptiX instead of SIMD/AVX and Embree - the released OpenMoonRay code supports both. It

It seems like Dreamworks had to move acceleration to GPU using CUDA and OptiX instead of SIMD/AVX and Embree - the released OpenMoonRay code supports both. It kind of feels like Dreamworks got burned a little by Intel here - they invested a ton of research effort (alongside Intel) in Embree, SIMD, and Knights' Landing, and then had to add another implementation for OptiX/GPU/SIMT anyway.