Access shader image through GH or Rhinocommon

[maje90 (Riccardo Majewski)]

If i’m not wrong, all materials/texture in Rhino exist as temp file.

This returns the bitmap of the first material in the document:

System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(this.RhinoDocument.Materials[0].GetBitmapTexture().FileReference.FullPath);

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Possible define an image and assign to a material?

The RDK writes one or more versions of any texture that is used. If you add a procedural texture to a material you’ll find that you get an image in tmp for that procedural as well - it is also just a memory/on-the-fly texture.