So, compute shader is going to do all the same work that CPU doing. It has a similar multithreading execution model that we use on the CPU. Since we have written our raytracer on CPU and I want a copy-paste level easy port(because I'm lazy), compute shader is an obvious choice. I will be using compute shaders for this implementation. Since you are reading this blog, you probably know already and there are amazing pieces of information out there. I'm not gonna talk about what GPU is and what is rendering pipeline. Since I have brought a new computer and it has a very decent GPU and we need more performance, I think we can try to run our raytracer into GPU. Less noisy but our execution time is too long now. We need more samples to generate reasonable image. * If bounce hit sphere */ // Add the attenuated emit color to result color.
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