Texture Channel Packer Online - Pack ORM/RMA Maps in Browser
Pack AO, Roughness, and Metallic maps into ORM, RMA, or custom textures online. No upload required. Built for UE5, Unity, Blender, and browser-based PBR workflows.
What this texture channel packer solves
This online texture channel packer helps artists and technical teams combine grayscale source maps into optimized packed textures for real-time rendering workflows. It is designed for common PBR setups such as ORM, RMA, and custom channel layouts where reducing texture count matters for memory, bandwidth, and material setup speed.
Supported inputs and outputs
- Input grayscale maps: PNG and JPG source textures for AO, roughness, metallic, and similar channels.
- Packed outputs: browser-exported textures intended for RGB and alpha-based material workflows.
- Workflow fit: useful for web previews, lookdev iteration, and game-ready PBR texture preparation.
When to use this tool
- Build ORM, RMO, or RMA textures for Unreal Engine, Unity, Blender, and custom PBR pipelines.
- Consolidate AO, roughness, metallic, or mask data into fewer textures to reduce sampling overhead.
- Validate channel assignments visually before exporting assets into production materials.
Related tools
Texture Batch Packer
Use the batch workflow when you need to apply the same packing logic across many texture sets.
PBR Map Generator
Generate normal, height, roughness, AO, and metallic maps before packing channels into runtime layouts.
Texture Channel Extractor
Split source textures into RGBA channels before repacking them into a new output layout.
How To Pack Roughness, Metallic, and AO Maps
Use this guide when the immediate task is packing grayscale PBR maps into a practical ORM or RMA layout.
How To Generate PBR Maps From a Diffuse Texture
Read this guide when the workflow starts from one diffuse texture and then moves into channel packing.
Core Features
Channel Packing
Combine multiple grayscale maps into a single RGB texture for efficient PBR workflows.
Channel Remapping
Remap channels (R, G, B, A) to different channels for custom workflows.
Shader Preview
Visualize how packed textures will behave with different blending modes.
Export Ready
Export packed textures in various formats (PNG, JPEG, TIFF) with customizable settings.
Local Processing
All texture processing happens in your browser - no uploads, no privacy concerns.
WebGL Accelerated
Fast processing even for 4K textures using GPU acceleration.
How It Works
Upload Textures
Drag and drop your grayscale texture files (metallic, roughness, AO, etc.). The tool automatically assigns them to channels.
Configure Settings
Assign each grayscale map to the desired output channel (R, G, B, or Alpha). Use presets for common PBR workflows.
Preview & Export
Check the results with our real-time shader preview, then export the packed texture in your preferred format.