GPU Pro 6

4

III

Physically Based Light Probe

Generation on GPU

Ivan Spogreev

4.1 Introduction

As the quality and complexity of modern real-time lighting has steadily evolved,

increasingly more and more advanced and optimal methods are required in order

to hit performance targets. It is not merely enough nowadays to have a static

ambient term or simple cube-map reflections to simulate indirect light. The

environment needs to have lighting that fully matches the surroundings. The

shading needs to not only handle and properly process direct lighting coming

from the light source, but also lighting that bounces around the environment.

Lighting received by a surface needs ...