GPU Pro 4

5. Forward+: A Step Toward Film-Style Shading in Real Time 125

Figure 5.4. A screenshot from the AMD Leo Demo.

than 150 lights in the scenes. Artists created about 50 lights by hand. Other lights

are dynamically spawned at runtime for one-bounce indirect illumination lighting

using the technique described in this section. Although Forward+ is capable of

using thousands of dynamic lights, a few hundred lights were more than enough

for our artists to achieve their lighting goals, especially for a single-room indoor

scene.

We use a material system in which a material consists of N layers where

each layer can have M weighted BRDF models along with other ...