RGBA Packer Pro

Pack multiple single-channel textures into one RGBA texture with ease. Essential tool for optimizing PBR materials and reducing memory usage.

★ CORE FEATURES

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• Pack up to 4 grayscale textures into R, G, B, A channels

• Real-time preview with zoom and pan controls

• Drag & drop texture assignment

• Smart auto-assignment by texture name (metallic, roughness, ao, height)

• Multi-select support - assign multiple textures at once

• Per-channel settings: extract channel, remap values, invert

★ QUICK PRESETS

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• Standard PBR (Metallic/Smoothness/AO/Height)

• Unity HDRP Mask Map (Metallic/AO/Detail/Smoothness)

• Unity URP (Metallic/Occlusion/Detail/Smoothness)

• Unreal Engine ORM (AO/Roughness/Metallic)

★ OUTPUT OPTIONS

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• Texture sizes: 128 to 8192 pixels

• Formats: RGBA32, ARGB32, EXR

• Filter modes: Point, Bilinear, Trilinear

• Mip maps generation with anisotropic filtering

• sRGB toggle for color vs data textures

• Compression quality settings

★ WORKFLOW BENEFITS

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• Reduce texture count by 75%

• Save GPU memory

• Fewer draw calls

• Faster material loading

• Industry-standard PBR packing

★ EDITOR FEATURES

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• Clean, intuitive interface

• Square texture preview boxes

• Color-coded channels (R, G, B, A)

• Session state persistence

• Texture size mismatch warnings

• One-click export

★ COMPATIBILITY

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• Unity 2020.3 LTS and newer

• Built-in Render Pipeline

• Universal Render Pipeline (URP)

• High Definition Render Pipeline (HDRP)

• Windows, macOS, Linux

★ SUPPORT

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• Full source code included

• PDF documentation

• Example scene with demo materials

• Email support

Perfect for game developers, technical artists, and anyone working with PBR materials who wants to optimize texture memory and streamline their workflow.