Cannot find a way to generate random numbers in CUDA device code continously for use within computation [duplicate]

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• Generating random number within Cuda kernel in a varying range 2 answers

I am trying to write a raytracer accelerated with CUDA, but I need to be able to generate random numbers.

I've been searching through the internet to find a way to generate random floats on demand within device code much like the rand() function of c++ but the only possible solutions I find are separate kernel calls that generate N numbers and then get copied back to host memory, which is not a possible solution for me sadly. If anyone knows a way to make this kind of RNG work, I'd much appreciate if you share it with me.