mercredi 29 juin 2022

What's the point of sampling multiple rays per pixel

What is the purpose of multisampled pixels in raytracing? In my experience writing raytracers, there is never any noise, only slight aliasing at lower resolutions, but in most diagrams I see, in the single sampled pixels, there is a ton of noise and black spots. Is this issue noise on single pixels exclusive to global illumination/antialiasing? Or is there another benefit to using multiple samples per pixel?




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