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  • #18110
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Issue created Feb 04, 2021 by Timothee Chabat@timothee.chabatDeveloper

vtkCompositePolyDataMapper2 and vtkFollower don't work with transparency

When using a vtkFollower coupled with a vtkCompositePolyDataMapper2 and a texture that has an alpha channel, nothing is rendered. If any of these parameters is changed (i.e. if we use a vtkActor or a vtkCompositePolyDataMapper or a vtkOpenGLPolyDataMapper instead, or if the texture doesn't have an alpha channel) this works correctly.

Expected behaviour :

expected

Actual behaviour :

actual

Attached a minimal example and its CMakeFile that reproduce this behaviour (does not include the png used in the example)

TestFollower.cxxCMakeLists.txt

Edited Feb 04, 2021 by Paul Lafoix
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