Assign Materials to Collection

This script assigns materials from a defined list to mesh objects in a specified collection, cycling through the materials and adding warnings for missing ones.

Broken button... I'll fix it eventually...

# Import Blender API

import bpy

# Define the collection name

collection_name = "Your_Collection_Name" # Replace with the name of your collection

# Material names to assign

material_names = ["Material 1", "Material 2", "Material 3"]

# Retrieve the collection

collection = bpy.data.collections.get(collection_name)

if collection:

for i, obj in enumerate(collection.objects):

# Ensure the object is a mesh

if obj.type == 'MESH':

# Add material slots to the object if not present

while len(obj.data.materials) < len(material_names):

obj.data.materials.append(None)

# Assign materials in a cycle

for j, mat_name in enumerate(material_names):

material = bpy.data.materials.get(mat_name)

if material:

obj.data.materials[j] = material

else:

print(f"Material '{mat_name}' not found.")

else:

print(f"Collection '{collection_name}' not found.")

Description

This script assigns specified materials to all mesh objects within a designated collection in Blender. It ensures each object has enough material slots and applies the materials in a cyclic pattern from a provided list. If a material is not found, a warning is printed, allowing users to identify and address missing materials.