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Fix GLTF importer forcing vertex colors on all materials #82272

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merged 1 commit into from Sep 25, 2023

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darksylinc
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@darksylinc darksylinc commented Sep 24, 2023

The importer already checks if a mesh has vertex colors and enables vertex colors on the material using it.

Before this fix, GLTF importer would force shader generation to use vertex colors even if the scene did not have vertex colors at all, or did not need them for some of its meshes; causing inefficient shader and PSO generation.

The importer already checks if a mesh has vertex colors and enables
vertex colors on the material using it.

Before this fix, GLTF importer would force shader generation to use
vertex colors even if the scene did not have vertex colors at all, or
did not need them; causing inefficient shader and PSO generation.
@darksylinc darksylinc requested a review from a team as a code owner September 24, 2023 22:39
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This fix does not fix projects with already-imported GLTF meshes.

Meshes will have to be reimported to take advantage of the fix.

Visually, this bug is harmless. It only affects performance (and mostly low end, since high end will probably not bottlenecked by this).

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According to the description, we are enabling vertex color on all cases rather than conditionally. I think conditionally apply vertex colour is fine, but don't have a large collection of user projects to test.

@akien-mga akien-mga merged commit 34de6c6 into godotengine:master Sep 25, 2023
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Thanks!

@akien-mga akien-mga changed the title Fix gltf importer forcing vertex colors on all materials Fix GLTF importer forcing vertex colors on all materials Oct 3, 2023
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4 participants