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test2/source
Mike Erwin a85f68e9c7 OpenGL: further wireframe shaders
As seen at #bcon16

Geometry shader version is automatically used on modern GL runtimes. Legacy version is used on pre-3.2 systems (Mac, Mesa compat profile). They have the same inputs and visual result.

TODO: specialized versions that are less flexible -- draw ALL edges or draw JUST silhouette edges.

Part of T49165
2016-11-05 18:56:57 +01:00
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2016-11-05 18:56:57 +01:00