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  • #17401

Closed
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Created May 02, 2017 by Joachim Pouderoux@jpouderouxContributor

OSPRay: volume rendering is not refreshing correctly when the transfer function is changed

Problem detected with OSPRay volume mapper in PV 5.3:

Changes on the color map (LUT) are not taken into account or not correctly applied until you perform a mouse action in the view. Example: on the Wavelet rendered with OSPRay Based mapper, change the Opacity transfer function with the GUI: at the beginning it looks like result is correctly applied but after several changes, it is not the case anymore, changes are not applied correctly and clicking in the view is the only way get a correct refresh.

I would be happy to help debugging this. Let me know if you have some guesses of what happen here. I suspect something like a problem with the handling of LUT/VolumeProperty MTime in vtkOSPRayVolumeMapperNode.cxx:214.

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