Blender MCP配置问题及需求：基于现有隧道模型通过Trae生成同款模型并保留材质/UV/纹理

Alright, let's walk through the exact workflow to create a duplicate tunnel model using Trae that keeps every single material, UV mapping, and texture property from your original—since you just need it to be a perfect match in shape and appearance.

1. Prep Your Original Blender Model First #

Before jumping into Trae, make sure your existing tunnel model is ready in Blender:

• Open the model and confirm all materials are properly assigned (check the Shader Editor for broken links)
• Verify UV maps are intact by opening the UV Editor and loading your texture—ensure everything lines up as expected
• Pack all textures into the .blend file to avoid missing links later: go to File > External Data > Pack All into .blend
• Save a backup of this file just in case!

2. Use Trae's Asset-Preserving Generation Mode #

Since you already have Trae linked with BlenderMCP, no need to reconfigure that connection. Here's what to do next:

• Launch Trae and connect to your open Blender session (BlenderMCP should be running in the background automatically)
• In Trae's model generation panel, look for the option called "Generate from Existing Model (Retain Assets)" (the wording might be slightly different based on your Trae version, but it'll explicitly mention preserving materials/UVs)
• Import your tunnel model into Trae—you can drag-and-drop the .blend file or use the "Import Blender Model" button.

3. Lock Shape & Asset Settings #

This is the critical part to ensure your new model is identical:

• In Trae's generation settings, toggle on "Lock Mesh Shape"—this tells Trae not to modify the geometry at all
• Enable "Preserve Material, UV Layers & Textures" (again, wording may vary) to make sure Trae copies over all shader nodes, UV maps, and texture assignments instead of generating new ones
• Double-check that any randomization or geometry adjustment sliders are set to 0—we want zero deviation from the original.

4. Generate & Bring the New Model Back to Blender #

• Hit the "Generate" button in Trae. Since this is essentially a copy-paste of your existing assets, it should be fast
• Once done, use Trae's "Export to Blender" feature to send the new model directly to your open Blender window
• In Blender, validate the new model:
  • Check the Shader Editor to confirm materials are identical to the original
  • Open the UV Editor to verify UV maps match perfectly
  • Do a quick render test to make sure textures display correctly

Quick Troubleshooting Tips #

• If materials don't transfer: Make sure you packed all textures into the .blend file before importing to Trae. Linked textures can break when moving between tools
• If UV maps are missing: Look for an advanced setting in Trae labeled "Preserve UV Layers"—some versions hide this behind an expandable menu
• If the shape is off: Double-check that "Lock Mesh Shape" is enabled and no geometry sliders were accidentally adjusted.

内容的提问来源于stack exchange，提问作者jin