Game Engine Architecture

448 10. The Rendering Engine

Figure 10.42. The Unreal Engine 3 graphical shader language.

Figure 10.41. Nvidia’s Fx Composer allows shader programs to be written, previsualized, and

debugged easily.

formance for its incredible fl exibility, generality, and ease of use. The Unreal

graphical shader editor is shown in Figure 10.42.

Materials may be stored and managed with the individual meshes. How-

ever, this can lead to duplication of data—and eff ort. In many games, a rela-

tively small number of materials can be used to defi ne a wide range of objects

in the game. For example, we might defi ne some standard, reusable materials