3 ms·
In English: if you're only using one ray for shading, then you'll have areas that are completely in shadow directly next to areas that are completely not in sha
by daeken 14y ago
In English: if you're only using one ray for shading, then you'll have areas that are completely in shadow directly next to areas that are completely not in shadow; what we call hard shadows. Soft shadows are a better approximation of reality, because they show the shades of grey between "covered" and "uncovered", but they require more ray intersections (unless you're using sphere tracing!).
- dualogy 14y agoSphere tracing is awesome. So many effects can be so easily and cheaply approximated, apart from soft shadows also subsurface scattering, bloom/glare etc. Downside, while great for geometry describable by distance fields, it's quite useless with polygonal assets...