A couple of observations: 1) for surface rendering with color mapped array, vtk's OSPRay interface we does not yet respect transparency (either at the actor level or in the alpha channel of the colormap). If you use a solid color for the entire actor (PV GUI color choice is "Solid Color" instead of one of the arrays in the data) then we do respect opacity.
2) we turn on aoTransparencyEnabled whenever there are volumes in the scene https://gitlab.kitware.com/vtk/vtk/blob/master/Rendering/OSPRay/vtkOSPRayRendererNode.cxx#L870 If your scene doesn't have volumes in it, then you'll need to compile from source and enable that generally (remove the if conditon). Feel free to submit patches or bug reports to for either of those things to help us remember to improve them. David E DeMarle Kitware, Inc. Principal Engineer 21 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-881-4909 On Thu, Sep 7, 2017 at 2:57 AM, Stefano Capra <[email protected]> wrote: > Good morning, > I am running ParaView 5.4.1-Qt5-OpenGL2-Windows-64bit and I was wondering > if there is a way to activate the opacity rendering while using OSPRay > ambient occlusion > > In the OSPRay website I have found this: > "New SciVis renderer parameter aoTransparencyEnabled, controlling whether > object transparency is respected when computing ambient occlusion (disabled > by default, as it is considerable slower)" > > However I am not sure how to change that parameter in ParaView > > Thanks > SC > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at http://www.kitware.com/ > opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Search the list archives at: http://markmail.org/search/?q=ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview >
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
