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Re: what exactly is an environmental map?
As you most likely know, spherical harmonics is a way of describing the diffuse lighting of an envioronment (as seen from a point in space, as always) by wrapping it around a sphere and deriving a cooefficiant matrix (per colour component) from the variation in lighting (as a frequency, not colour) around that sphere.… -
Re: what exactly is an environmental map?
Sage, fyi an environment map is also the term for the image(s) that go in the backdrop, sometimes called a skybox, so that's why Max uses the name there. Here's a cool tool I've been using lately for blurring down my envmaps, to get the effect of burnished metal reflections, and also for cubemap diffusive lighting. Works…
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