Randomize bitmaps on repeating instances of an object

In this tutorial, we take a look at a way to randomize the appearance of a bitmap in a material across multiple instances of a chair object. This process allows us to maintain lower level reflectance functions in one base material, while still having a more random appearance across multiple instances.
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UV mapping a chair model, part 2

In part 2, we UV map the chair back and seat components using texture projection as the starting point. This is a technique that pre-sets projected UVs that can then be unwrapped which helps to maintain size consistence between multiple UV mapped objects. Part 1 is here: https://www.strata.com/university/tutorials/uv-mapping-a-chair-model-part-1/
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