TEXMAP addition to Official Library Spec

RE: TEXMAP addition to Official Library Spec
(2020-07-21, 23:13)TravisĀ Cobbs Wrote: That is definitely not true. I believe that you are misunderstanding TEXMAP.

If the texture is drawn over a single quad, then the blank version of that exact same quad is perfectly legal. In this case, that quad would be a geometry2 quad, and would logically use !TEXMAP NEXT, since it's a single geometry line. If a texture is displayed over multiple triangles and/or quads, then START/END is required, butĀ omitting the texture would still show blank geometry in the same place, as long as they use geometry2.

Obviously, anything in the geometry1 section would be ignored by non-TEXMAP compliant renderers. So, if there is a geometry1 section, then it is almost certain that there should also be a FALLBACK section. Requiring this in the official parts spec is reasonable. But the easiest way to make a textured part is to simply leave the textured geometry blank for non-TEXMAP compliant renderers. So disallowing NEXT and geometry2 in official parts is wrong.

That's not right either. From the spec:
Quote:The first set of geometry will be used when textures are active (and the second will be ignored), and vice-versa when TEXMAP is not supported.

Therefore, in order for a non-!TEXMAP renderer to render the part correctly, per spec, there has to be a FALLBACK section and geometry3 lines.
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RE: TEXMAP addition to Official Library Spec - by Orion Pobursky - 2020-07-21, 23:27

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