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Lecture 14: Material Modeling (21)
red-robby

I'm not too sure what this graphic is conveying. Are these individual "bumps" and "dips" (pertubations) in the surface each a "macrosurface"? Or is what we're viewing overall (the line from left to right) the macrosurface? Is a microfacet, informally speaking, a small piece of one of these microsurfaces?

Unicorn53547

I think the latter is right, The dotted line is macrosurface, while numps and dips are microsurfaces and microfacet is small piece of the surfaces.

justin-shao

The material as a whole has an overall "macrosurface". In the more detailed microscale perspective (with the bumps and curves), we can see the smaller microfacets that are essentially small facets of a surface that has normal vectors pointing all over the place.

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