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The viewer does not write to gl_PointSize #347

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lexaknyazev opened this issue Aug 31, 2021 · 0 comments · Fixed by #359
Closed

The viewer does not write to gl_PointSize #347

lexaknyazev opened this issue Aug 31, 2021 · 0 comments · Fixed by #359
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From the GLSL spec:

The variable gl_PointSize is intended for a shader to write the size of the point to be rasterized. It is measured in pixels. If gl_PointSize is not written to, its value is undefined in subsequent pipe stages.

This may lead to not rendering POINTS primitives on some platforms.
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Add gl_PointSize to vertex shader KhronosGroup/glTF-Sample-Viewer
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@lexaknyazev @UX3D-nopper @UX3D-haertl