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VertexArrayState: dirty() forces every active array to be dispatched again #51

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Sep 10, 2026
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VertexArrayState: dirty() forces every active array to be dispatched again #51

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9 changes: 9 additions & 0 deletions src/osg/VertexArrayState.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -820,6 +820,15 @@ void VertexArrayState::setInterleavedArrays(osg::State& /*state*/, GLenum format

void VertexArrayState::dirty()
{
// Reached from Drawable::dirtyGLObjects() when one of the drawable's arrays was replaced. Any other array
// sharing a buffer object with it may move inside that buffer when it is next compiled, and a vertex array
// object keeps the pointers recorded at dispatch time, so every active array has to be dispatched again,
// not only the ones whose array or modified count changed.
for(ActiveDispatchers::iterator itr = _activeDispatchers.begin(); itr != _activeDispatchers.end(); ++itr)
{
(*itr)->modifiedCount = 0xffffffff;
}

setRequiresSetArrays(true);
}

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