Poiyomi Bridge for Blender - Render your Poiyomi avatar in Blender, pixel-matched to Unity (.mat import, 27 verified cases, unofficial)

Your Poiyomi look, now native in Blender.

Poiyomi Bridge is a faithful port of the Poiyomi Toon shader (free 9.3) to Blender. It is not a node approximation: the original HLSL is machine-transpiled to GLSL and runs as a real GPU shader inside a custom render engine. All 27 verified feature cases match Unity renders pixel-for-pixel (SSIM >= 0.99, interior diff <= 2/255, many exactly 0/255). For avatar promo renders, animation previews, and working on your avatar without leaving Blender.

■ FEATURES

• Custom render engine: viewport preview + F12 render (does not use EEVEE / Cycles)
• 27 verified cases: shading modes (Ramp / Multilayer / Wrapped / ShadeMap / Realistic / Flat), rim x2, matcap x2, emission x2, normal + detail, PBR + clearcoat, backlight, glitter, hue shift, outline, cutout / transparent, dissolve, fur, grab pass, world
• .mat auto import: Unity material (.mat) + textures set up automatically via GUID resolution (locked materials are detected with unlock instructions; keywords are restored)
• English UI, Poiyomi-style section layout

■ VERIFICATION

• Every case is auto-verified against Unity 2022.3 headless renders as golden images (SSIM + interior byte diff)
• The full measurement table is in the README (SSIM 0.9954 to 1.0000)

■ REQUIREMENTS

• Blender 4.5 LTS (verified on Windows)
• Poiyomi Toon free 9.3 feature range. Poiyomi Pro (Patreon) is not covered

■ INSTALL

1. Edit > Preferences > Add-ons > install the zip
2. Switch the Render Engine to "Poiyomi Bridge"
3. (Optional) File > Import > pick your Unity Assets folder and .mat files
4. Render

■ NOTES

• Unofficial port. Not affiliated with Poiyomi (ported under the MIT license of the original).
• AudioLink is a static pseudo input (preview only). LTCGI and other VRChat world integrations are out of scope.
• Locked (optimized) .mat files cannot be read. Unlock them in Unity first.
• Known differences (hardware A2C, phase of time-based animation, etc.) are documented in the README with measured values.

■ CONTENTS

• PoiyomiBridge_v0.9.0.zip (Blender add-on)
• README.md (measurement table, known differences, steps)
• LICENSES/ (Poiyomi MIT text and others)

■ LICENSE

• See the included license. Use in your own works, commercial or not, is allowed. Redistribution of the add-on itself is prohibited.
• Parts derived from the MIT-licensed original remain under MIT.