10000 Known Issues in glTF Rendering Tests · Issue #910 · pygfx/pygfx · GitHub
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Known Issues in glTF Rendering Tests #910

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panxinmiao opened this issue Dec 18, 2024 · 0 comments
Open

Known Issues in glTF Rendering Tests #910

panxinmiao opened this issue Dec 18, 2024 · 0 comments

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@panxinmiao
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In #895, an example gltf_viewer.py was added, which uses the KhronosGroup glTF Sample Assets for rendering tests. Below are the test cases that have not passed yet.

Test Case Type Cause
Alpha Blend Mode Test pygfx capabilities not yet supported alpha_mode and alpha_test are not yet supported.
Compare Alpha Coverage pygfx capabilities not yet supported 1. MSAA and alphaToCoverage related features are not yet supported.
2. alpha_mode and alpha_test are not yet supported.
Interpolation Test Bug/pygfx capabilities not yet supported 1. Bug in pylinalg, error message: numpy.linalg.LinAlgError: SVD did not converge, causing the program to crash.
2. glTF CubicSplineInterpolant is not yet supported.
Simple Sparse Accessor glTF loader not implemented The glTF loader does not yet support loading Sparse Accessor data.
Texture Linear Interpolation Test Non-conforming implementation Interpolation occurs in the sRGB space. A temporary workaround was added after #906 , but this issue still needs further resolution.
Vertex Color Test Non-conforming implementation The current logic for handling Vertex Colors has issues and does not conform to the glTF specification.
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