How do I create a script to delete all objects sharing the same texture/material in all collections?

Question

The project I'm working on in Blender has objects that aren't desired from the mesh rips I've pulled from PPSSPP using a tool called NinjaRipper. I'm looking to put together a script that targets meshes with a specific texture(and any iterations like "Texture.png.01") and have the objects deleted from all collections it is linked to. I have been looking at the python api documentation and found bpy.ops.object.delete(use_global=False, confirm=True) which seems to be the end goal of the script but I'm unsure how to go about targeting objects sharing the same material/texture and their iterations, selecting them, and deleting them.

Answer 1

You need to create a list of the relevant textures, something like this:

texture_names = [
    "texture1.jpg",
    "texture2.jpg",
    "Metal007_1K_Color.jpg"
]

replacing my three sample strings with whatever textures you want. Once you've don that, this code will

• First find all of the materials that use any of the textures in your list and
• Then remove any object that uses any of the named materials.

import bpy

texture_names = [
    "texture1.jpg",
    "texture2.jpg",
    "Metal007_1K_Color.jpg"
]

wanted = []

for material in bpy.data.materials:
    node_tree = material.node_tree
    if node_tree:
        for node in node_tree.nodes:
            if node.type == "TEX_IMAGE" and node.image.name in texture_names:
                wanted.append(material)

for object in bpy.data.objects:
    for slot in object.material_slots:
        if slot.material in wanted:
            print(object.name, slot.material.name)
            bpy.data.objects.remove(object)

To do this from the known materials, use a slightly different setup

import bpy
material_names = [
    #Fill this with strings of material names
]

for object in bpy.data.objects:
    for slot in object.material_slots:
        if slot.material.name in material_names:
            print(object.name, slot.material.name)
            bpy.data.objects.remove(object)
```