BuildRayBuffer passes each ray to a float64 slice, using 8 floats per ray.

BuildRayBufferCL32 builds a slice of CLRay32 from the passed geom.Ray slice, i.e.

Trace is the entry point for transforming input data into their OpenCL representations, setting up boilerplate and calling the entry kernel.

Trace32 is the entry point for transforming input data into their OpenCL representations, setting up boilerplate and calling the entry kernel.