TRELLIS 2 PBR Texture Generation in ComfyUI: Complete Guide (2026)

TRELLIS 2 PBR Workflow in ComfyUI

Required Nodes

1. TRELLIS Image to 3D — Generate the base 3D mesh
2. TRELLIS Texture Bake — Bake PBR materials
3. TRELLIS Export — Export with embedded textures

Step-by-Step Configuration

Step 1: Generate the 3D mesh

Use the standard TRELLIS Image to 3D node:

• Resolution: 1024 or 1536 (higher = better textures)
• Steps: 30-50

Step 2: Configure Texture Bake

Add the TRELLIS Texture Bake node with these settings:

Step 3: Export with Textures

In the TRELLIS Export node:

• Format: glb (embeds all textures in one file)
• Embed Textures: true
• Apply Transform: true

Texture Resolution Guide

Tips for Better PBR Results

1. Use high-quality input images — Better input = better texture inference
2. Match lighting conditions — Even, neutral lighting produces cleaner PBR maps
3. Increase generation steps — More steps = more detail in texture generation
4. Use 1024³ or higher resolution — Lower resolutions produce blurry textures
5. Check UV quality — Bad UVs = stretched or missing textures

Exporting for Game Engines

Unity

1. Export as GLB from ComfyUI
2. Import into Unity (supports GLB natively in 2022.3+)
3. Materials auto-convert to Unity's Standard shader
4. Verify texture assignments in the Material Inspector

Unreal Engine

1. Export as GLB or FBX
2. Import into Unreal — textures auto-extract
3. Create a Material using the PBR maps:
   • Base Color → Base Color input
   • Roughness → Roughness input
   • Metallic → Metallic input
   • Normal → Normal input

Blender

1. File → Import → glTF 2.0
2. Switch to Material Preview or Rendered view
3. PBR textures apply automatically

Troubleshooting

"Textures look stretched"

UV unwrapping quality affects this. In the Texture Bake node:

• Try smart bake method instead of auto
• Increase texture resolution
• Use mesh simplification set to none

"Metallic map is all black"

The input image may lack metallic elements. TRELLIS 2 infers materials from the image — if there's nothing metallic in the photo, the metallic map will be mostly black.

"Normal map looks flat"

• Increase Normal Strength to 1.5
• Use higher resolution (1536³)
• Increase bake steps

Related Guides

• TRELLIS 2 ComfyUI Guide — Installation and setup
• ComfyUI Workflow Tutorial — Complete workflow walkthrough
• How to Use TRELLIS 2 — General usage guide