In this chapter, we saw that Blender's lack of a compiled shader language does not prevent its use from designing custom patterns and shaders. Pynodes are an integrated part of Blender's node system and we saw how to use them to create effects from simple color patterns to fairly-complex animated ripples. Specifically, we learned:
- How to write Pynodes that create simple color patterns
- How to write Pynodes that produce patterns with normals
- How to write animated Pynodes
- How to write height and slope dependent materials
- How to create shaders that react to the angle of incident light
In the next chapter, we will look into the automation of the rendering process as a whole.
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