If you want to calculate global illumination with path tracing (which is a form of ray tracing) then you need multiple samples per pixel to get a noiseless result.
Most of the time at least 500-1000 samples.
If you want to calculate global illumination with path tracing (which is a form of ray tracing) then you need multiple samples per pixel to get a noiseless result.
Most of the time at least 500-1000 samples.