after Daniel suggested me to use QGLPixelBuffer to render offscreen I did, and nearly everything works perfektly now. Except the backround color is not set to the color I specified with setClearColor() and every SceneView::draw() generates an error message:
"RenderStage::drawInner(,) OpenGL errorNo= 0x502"
I'm pretty sure the same code rendering onto a normal GL graphics context doesn't throw this error.
What am I doing wrong? Can you help me with that?
thx,
Frans
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