This is a simple and straight-forward script. We import a bunch of modules and namespaces we need, get the list of selected objects, loop over them and tweak the diffuse or base color textures.
In case you rather just get the final script, you can find it here
We'll assume for now that we are dealing with Rhino Custom or Rhino PBR materials.
<<imports>> <<assume already selected objects>> <<loop over objects and tweak texture>>
We'll use a list comprehension to get the list of selected objects. Note that
IsSelected(), since we are not interested in
sub-objects, but rather the top level object.
obs = [ob for ob in sc.doc.Objects if ob.IsSelected(False)]
Now that we have our object list we'll loop over each object and get its render material. For the material we'll determine the correct child slot, retrieve the texture, then change the repeat of its mapping.
for ob in obs: <<get render material>> <<get child slot>> <<find texture>> <<fiddle with texture>>
Simple ask for
RenderMaterial. This should always work, but just in case, skip
handling this any further if
None was given.
render_material = ob.RenderMaterial if not render_material: continue
For now we assume either Rhino native materials (basic material or PBR). To that end we'll simulate the render material and see if it is a PBR material.
mat = render_material.SimulatedMaterial(Rhino.Render.RenderTexture.TextureGeneration.Allow) if mat.IsPhysicallyBased and mat.PhysicallyBased: slot = Rhino.Render.RenderMaterial.StandardChildSlots.PbrBaseColor else: slot = Rhino.Render.RenderMaterial.StandardChildSlots.Diffuse
Now that we have the correct slot we can actually get the texture from our render material.
diffuse_texture = render_material.GetTextureFromUsage(slot)
All that is left is to get the repeat, tweak it and set it back. For render content to be properly updated we have to bracket it with BeginChange and EndChange, using a suitable change context. Since our script is like a UI we'll use the UI change context. Program or RealTimeUI would also work.
context = Rhino.Render.RenderContent.ChangeContexts.UI repeat = diffuse_texture.GetRepeat() print(repeat) repeat *= 2 repeat.Z = 0 print(repeat) diffuse_texture.BeginChange(context) diffuse_texture.SetRepeat(repeat, context) diffuse_texture.EndChange()
We still have to import everything we need:
import scriptcontext as sc import Rhino import Rhino.Render