3 ms·
One issue with Hero Wavelength sampling (mentioned in article) is that because IOR is wavelength-dependent, after a refraction event, you basically lose the non
by pixelesque 11mo ago
One issue with Hero Wavelength sampling (mentioned in article) is that because IOR is wavelength-dependent, after a refraction event, you basically lose the non-hero wavelengths, so you get the colour noise again through refraction.