How to track back a previous Custom Display?

[AndersDeleuran]

I was just about to reply, pointing this out. That said, I’d recommend overriding the DrawViewportMeshes and DrawViewportWires methods instead. It’s arguably simpler and enables you to call all the methods in the DisplayPipeline (i.e. unlike CustomDisplay):

And a GHPython example here:

How to use the CustomPreview and CreateMaterial in ghpythonlib?

You can use the CustomDisplay class (example here) for rendering non-shaded stuff (e.g. curves and vectors). Or override DrawViewportMeshes and DrawViewportWires (with the GHPython component set to SDK mode) for rendering all sorts of things, like so: [2020-04-03 11_37_08-] 200401_GHPython_DrawViewportWires_02.gh (16.6 KB) This is just my first stab at implementing the latter method. As far as I call tell, one probably ought set the bounding box as well (Edit: For frustum culling, as explai…