3 ms·
Why is that any more difficult than calculating color reflection/absorption on a surface? Both presumably involve multiplication in spectrum space.
by pishpash 5y ago
Why is that any more difficult than calculating color reflection/absorption on a surface? Both presumably involve multiplication in spectrum space.
- usrusr 5y agoYou don't have multiple of those stacked on top of each other. At least not as long as you don't dive deep into the global illumination rabbit hole. And then you've got bigger and more pressing problems to solve.
- zokier 5y agoYes, you are right that conceptually it is the same problem both with reflections and transmissions. The key difference is that in typical scenes indirect/bounce lighting tends to have comparatively subtle effect whereas translucency, especially when colored, can be easily quite apparent. Colored mirrors are pretty rare but colored transparent objects are very common.