Chapter 16. Vertex Shading: Do-It-Yourself Transform, Lighting, and Texgen
WHAT YOU’LL LEARN IN THIS CHAPTER:
• How to perform per-vertex lighting
• How to generate texture coordinates
• How to calculate per-vertex fog
• How to calculate per-vertex point size
• How to squash and stretch objects
• How to make realistic skin with vertex blending
This chapter is devoted to the application of vertex shaders. We covered the basic mechanics of OpenGL Shading Language (GLSL) shaders in the preceding chapter, but at some point you have to put the textbook down and start learning by doing. Here, we introduce a handful of shaders that perform various real-world tasks. You are encouraged to use these shaders as a starting point for ...
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