Help me before I come insane!

Coding Python Support
1

I imported a crowd sim from Anima. Once in Blender I get basic materials, just the diffuse. I found out that if I export the same model from Maya in FBX, I get the right materials with diffuse, roughness and normal map. Problem is, I have link the materials one charater at a time. I pick character A from the collada version, then the same one from Maya’s FBX and link the materials. Repete for every characters… There must be a way to script that.

The characters have the exact same names so it’s just a question of matching the pairs in the right order and link the material. Here’s a demo file with two characters if someone wants to give it a shot. I would know how to code it in Maya but not in Blender.

https://www.dropbox.com/s/r9ljvvvbeouahja/demoScene.rar?dl=0

2

Assuming that objects from maya and objects from colada have the same number of material slots:

import bpy, re
context = bpy.context

def get_base_name(full_name):
    index = re.findall(r'\d+', full_name)
    base_name = full_name[:-len(index[-1])]
    return base_name

sel_obs = context.selected_objects
link_from_obs = {get_base_name(ob.name):ob for ob in context.view_layer.objects if ob not in sel_obs and ob.type == 'MESH'}

for ob in sel_obs:
    link_from_ob = link_from_obs[get_base_name(ob.name)]
    for i, slot in enumerate(ob.material_slots):
        slot.material = link_from_ob.material_slots[i].material

Select objects from collada and run the script

1 Like
3

Once again, you saved the day! Thank you so much!

4

Oh! I tried the script and I go this message:

Python script failed, check the message in the system console. But I don’t see any messages in the console.

On my side, I made sure that the names are the same and they have the same number of materials.I selected the collada models and ran the script.

5

The message is found in the Window menu, last entry, Toggle System Console.

image

6

Ok! Ok, I thought it was the console we see in the scripting tab. So this is what I get:

KeyError: ‘C036_030_v03_cman0200m4_ANI_0000.’

I think I know what the problem is. When I import the FBX from maya, Blender adds .001 at the end of the name so that it doesn’t conflict with the other one with the same name.

7

Yes, in your demo scene objects were named
testBlender_ani_bwom0301m4_ANI_0000
testBlender_ani_bwom0301m4_ANI_00000

I didn’t thought about any .001
So try splitting name on the last "_" and link from the object with the part before "_" in the name

import bpy
context = bpy.context

def get_base_name(full_name):
    base_name = full_name.rpartition('_')[0]
    return base_name

sel_obs = [ob for ob in context.selected_objects if ob.type == 'MESH']
link_from_obs = {get_base_name(ob.name):ob for ob in context.view_layer.objects if ob not in sel_obs and ob.type == 'MESH'}

for ob in sel_obs:
    link_from_ob = link_from_obs[get_base_name(ob.name)]
    for i, slot in enumerate(ob.material_slots):
        slot.material = link_from_ob.material_slots[i].material
1 Like
8

Yep! That worked perfectly! Thanks again. :slight_smile: