Correction to index buffer type in loadMeshBVH#5
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santeripuranen wants to merge 1 commit intoqt:devfrom
Open
Correction to index buffer type in loadMeshBVH#5santeripuranen wants to merge 1 commit intoqt:devfrom
santeripuranen wants to merge 1 commit intoqt:devfrom
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Only unsigned integer types are supported for user-supplied meshes in QQuick3DGeometry, and make sense for index buffers in general. The pre-set signed indexBufferFormat was always used in the old code, since "attribute.componentType" (either uint32 or uint16) never matched any of the signed alternatives in the if-clauses. This appears to have worked fine with uint32 buffers, but caused crashes with uint16 (due to out-of-bounds accesses caused by bad casts downstream).
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Only unsigned integer types are supported for user-supplied meshes in QQuick3DGeometry, and make sense for index buffers in general. The pre-set signed indexBufferFormat was always used in the old code, since "attribute.componentType" (either uint32 or uint16) never matched any of the signed alternatives in the if-clauses. This appears to have worked fine with uint32 buffers, but caused crashes with uint16 (due to out-of-bounds accesses caused by bad casts downstream).