GPU Pro 6

1

III

Real-Time Lighting via

Light Linked List

Abdul Bezrati

1.1 Introduction

Deferred lighting has been a popular technique to handle dynamic lighting in

video games, but due to the fact that it relies on the depth buffer, it doesn’t

work well with translucent geometry and particle effects, which typically don’t

write depth values. This can be seen in Figure 1.1, where the center smoke effect

and the translucent water bottles are not affected by the colorful lights in the

scene.

Common approaches in deferred engines have been to either leave translucent

objects unlit or apply a forward lighting pass specifically for those elements. The

forward lighting pass