In this chapter, we will cover:
- Creating a rock material using image maps
- Creating a rock material using procedural textures
- Creating a sand material using procedural textures
- Creating a simple ground material using procedural textures
- Creating a snow material using procedural textures
- Creating an ice material using procedural textures
- Creating a clean running water material
Replicating "nature" can be quite a difficult task. Natural materials are usually the most difficult to recreate in a satisfying way using computers, mainly because the "orderly chaos" of nature is not the best fit for the "orderly logic" of an electronic machine.
Too often we see even cubes that look obviously computer generated because of the neatness add regularity of their shapes or surfaces. Actually, in reproducing true-to-life natural objects (or material as well), we have to start from the absolute regularity of the computer simulation and then, step by step, blemish it in a controlled way, to reach a more natural look.
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