Lecture 13: Global Illumination & Path Tracing (60)
ClaireLiu123
compare with the direct illumination and the one-bounce global illumination, the image appears with more bright lighting. It appears with more light because the light reflected or transmitted by objects illuminates other objects.
Unicorn53547
There should be computational cost along with multi-bounce global illumination. How would we decide which one to use (i.e. expand to which order) in practice? And waht's the most commonly used ont in reality?
rheask8246
Responding to the above comment: Maybe in applications like games or visual rendering, you’d decide this based on the aesthetics of the image you’re trying to render. In reality, light bounces infinitely, and this can be handled in code with a Russian Roulette, as described later.
compare with the direct illumination and the one-bounce global illumination, the image appears with more bright lighting. It appears with more light because the light reflected or transmitted by objects illuminates other objects.
There should be computational cost along with multi-bounce global illumination. How would we decide which one to use (i.e. expand to which order) in practice? And waht's the most commonly used ont in reality?
Responding to the above comment: Maybe in applications like games or visual rendering, you’d decide this based on the aesthetics of the image you’re trying to render. In reality, light bounces infinitely, and this can be handled in code with a Russian Roulette, as described later.