Blender游戏引擎报错：'VideoTexture.Texture'对象无'materialID'属性

Got it, let's break down why this error is happening and get your texture replacement working in the Blender Game Engine.

What's Causing the Error? #

That message means you're trying to call materialID as if it's a method of the Texture object you created—but materialID is actually a standalone function from the bge.texture module, not something you invoke on a Texture instance. It's an easy mix-up since the function lives in the same module as the Texture class.

Corrected Script with Explanations #

Here's the fixed version of your code, with clear notes on each adjustment:

import bge
import bge.texture as texture

def createTexture(cont):
    obj = cont.owner
    
    # ✅ Call materialID directly from the bge.texture module
    # Pass your object and the exact name of the texture/material slot you want to target
    texture_id = texture.materialID(obj, 'Kraftwerk2.png')
    
    # Now create the Texture object using the ID we just retrieved
    object_texture = texture.Texture(obj, texture_id)
    
    # Finish expanding your image path (use // for project-relative paths)
    image_path = bge.logic.expandPath("//your_new_texture.png")
    
    # Create a new source from your external image/video
    new_texture_source = texture.ImageFFmpeg(image_path)
    
    # Assign the new source to your Texture object
    object_texture.source = new_texture_source
    
    # Refresh to apply the texture change immediately
    object_texture.refresh(True)

Key Fixes Breakdown #

1. Fix the materialID call: Move materialID outside the Texture object—call it directly from bge.texture before you create the Texture instance. This gives you the unique ID needed to link the Texture object to your object's material slot.
2. Complete the path expansion: Make sure logic.expandPath() points to a valid file. Using // tells Blender to look relative to your project's .blend file location, which is the most reliable way to reference assets.
3. Properly set the texture source: After creating the image source with ImageFFmpeg (works for both images and videos), assign it to the Texture object's source attribute, then run refresh() to apply the change right away.

Quick Tips to Avoid Future Issues #

• Double-check that 'Kraftwerk2.png' is the exact name of the texture or material slot on your object. If you're targeting a material instead of a texture, use the material name here.
• If you're only working with static images, you can swap ImageFFmpeg with ImageBase—both work, but ImageBase is simpler for non-video assets.

内容的提问来源于stack exchange，提问作者Merlin Waldhör