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0032094: Visualization, TKOpenGl - OpenGl_VertexBuffer::bindAttribute() silently does nothing without active GLSL program

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OpenGl_VertexBuffer::bindAttribute() now prints an error message indicating a possible VBO misuse.
This commit is contained in:
kgv 2021-01-29 05:29:50 +03:00 committed by bugmaster
parent a0073def2d
commit 4ad4054c90
1 changed files with 6 additions and 0 deletions
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6
src/OpenGl/OpenGl_VertexBuffer.lxx
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@ -30,7 +30,13 @@ inline void OpenGl_VertexBuffer::bindAttribute (const Handle(OpenGl_Context)&
{
bindFixed (theCtx, theAttribute, theNbComp, theDataType, theStride, theOffset);
}
else
#endif
{
// OpenGL handles vertex attribute setup independently from active GLSL program,
// but OCCT historically requires program to be bound beforehand (this check could be removed in future).
Message::SendFail ("Error: OpenGl_VertexBuffer::bindAttribute() does nothing without active GLSL program");
}
return;
}