How to colour a brep in GHPython and visualize it in the Rhino?

[vijesh (VIJESH KUMAR V)]

Hi,
How to colour a brep in GHPython and visualize it in the Rhino?

I have created the colour using the ghcomp,
c1 = ghcomp.ColourRGB(255,75,107,169)

@AndersDeleuran @Giulio

Thanks

[AndersDeleuran]

You can implement the DrawBrepShaded and DrawBrepWires methods similar to how the mesh is drawn 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…

[vijesh (VIJESH KUMAR V)]

Thank you I was trying it.
Does this work directly?
r.Display.DisplayPipeline.DrawBrepShaded(brep, material_colour)

While I try am getting error as below, and am unable to track it.

Runtime error (ArgumentTypeException): expected DisplayPipeline, got Brep
Traceback:
line 22, in script

[AndersDeleuran]

@vijesh

Does this work directly?

No you need to implement the DrawViewportMeshes and DrawViewportWires methods in SDK mode. Here’s a quick example extending the file from the thread I posted above:

230606_GHPython_DrawViewportWires_00.gh (25.6 KB)