Open an .rmtl file and apply it to a layer?

Scripting
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1

Is it possible in python to open an .rmtl file and apply it to a layer? And, if so, how?

2

Hi @williamjb741, below seems to do it:

import Rhino
import scriptcontext
import rhinoscriptsyntax as rs

def DoSomething():
    
    rmtl_file = rs.OpenFileName("Open", "RMTL Files (*.rmtl)|*.rmtl||")
    if not rmtl_file: return
    
    layer_path = rs.GetLayer("Layer to apply material to", None, False)
    if not layer_path: return
    
    material = Rhino.Render.RenderContent.LoadFromFile(rmtl_file)
    layer_index = scriptcontext.doc.Layers.FindByFullPath(layer_path, -1)
    layer = scriptcontext.doc.Layers[layer_index]
    layer.RenderMaterial = material
    
DoSomething()

_
c.

1 Like
3

I didn’t want the dialogs. So this is what I came up with based on your answer. And it worked. It was that Rhino.Render.RenderContent.LoadFromFile that I really needed. Thanks a million!

import Rhino
import scriptcontext as sc

layer_index = sc.doc.Layers.FindByFullPath("LayerName", Rhino.RhinoMath.UnsetIntIndex)
layer = sc.doc.Layers[layer_index]
material_path = "..\\PathRelativeToThisScript\\MyCoolMaterial.rmtl"
material = Rhino.Render.RenderContent.LoadFromFile(material_path)
layer.RenderMaterial = material