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MechaPaint / Formats & Specs

THE DETAILS

Formats, specs, and what is next

Everything MechaPaint opens and everything it writes, the technical details, and a plain answer about PBR.

FILE FORMATS

It probably opens what you have

Drag it on, or use the file dialog. Notably, LightWave LWO3 objects, including LightWave 2025 files, are read natively, with each surface arriving as its own paintable submesh.

Models in
FBX, OBJ (with MTL), LWO (LightWave LWO3, native), USD (.usd, .usda, .usdc, native geometry import; Windows today, macOS next), glTF, GLB, STL, PLY, 3MF. USDZ is not read, re-export as .usd, .usda, or .usdc
Animation in
FBX, DAE, glTF, GLB, BVH, loaded onto a rigged model already on screen
Images in
PNG, JPG, JPEG, PSD, TIFF, TGA, BMP, EXR, HDR, as base textures, layer contents, stamps, patterns, or floating references, imported from disk, drag-and-drop, or straight off the clipboard
Image to mesh
PhotoMesh turns any photo into a textured, paintable 3D model, as a relief sheet or a closed solid ready to export; a plain image can also open as a flat paintable canvas
Panoramas in
Equirectangular PNG, JPG, EXR, or HDR for skybox backgrounds and spherical painting, plus folded 4x3 cross layouts
Brushes in
ABR, Photoshop brush sets, imported directly, plus PNG, JPG, JPEG, PSD, TIFF, TGA, and BMP images used as brush shapes
Fonts in
TTF, OTF, any font installed on your system
Projects
.mpaint, a single file holding your meshes, every paint layer, masks, references, and text decals, saved and reopened without loss
Textures out
PNG, merged or per-layer, per-submesh or whole model, at your chosen resolution
Geometry out
OBJ with rebuilt or combined UV maps, plus MTL, with per-engine orientation presets for Roblox, Unity, Unreal, and Polytoria
Panoramas out
PNG, as six engine-named cube faces, one equirectangular image, or a folded 4x3 cross
Screenshots out
PNG from 256px to 4K, with transparent, flat, and depth-map modes, plus the paired color and depth files Facebook 3D photos expect
Platform export
Roblox classic shirt, pants, and t-shirt templates, the 15-part R15 Studio body kit, and Polytoria clothing and face templates, correctly laid out and ready to upload
DETAILS

The fine print, minus the pain

App type
Standalone 3D art application, not a plugin, no engine required
Platforms
Windows and macOS
Import
FBX, OBJ, LWO, USD, glTF, GLB, STL, PLY, 3MF, full list above
Export
PNG textures, merged or per-layer, per-submesh or whole model, and OBJ with MTL for geometry; source files never modified
Input
Mouse, or pen tablet with high-frequency pressure sampling and per-user calibration
Material channels
Base color today; roughness, metallic, and normal in development
Under the hood
Every result is painted by you, and fully repeatable
Download
The full application, every tool; exports watermarked until you buy
License
One-time purchase, perpetual, with a year of free upgrades; $39.50 until PBR ships (reg. $79)
WHAT'S NEXT

PBR is coming. Here's why it isn't here yet.

MechaPaint paints color textures today. It does not yet author full PBR material sets, and we'd rather say so plainly than bury it in a footnote.

We picked the interface first

A tool with every channel in the world and an interface that fights you is a tool nobody finishes a model in. We spent our time making the painting itself fast, obvious, and pleasant. That part is done, and it's the part that's hardest to retrofit later.

Color is most of the work anyway

For an enormous amount of real production work, characters, clothing, props, mobile assets, Roblox and Polytoria items, stylized film work, the base color map plus baked occlusion is the whole job. That's what MechaPaint does, thoroughly.

PBR is next on the list

Roughness, metallic, and normal channels are actively in development and will arrive as a free update. If you buy during your upgrade year, you get them at no extra cost.

KEEP LOOKING

More of MechaPaint

Home
Home The overview: what MechaPaint is, how a model moves through it, and what it works with.
Painting and Interface
Painting & Interface Layers, brushes, symmetry, and painting directly on animated models, mid-motion.
Transfer and Retouch
Transfer & Retouch Faces, skins, logos, and clothing onto existing models, plus dedicated Roblox and Polytoria tools.
UV Repair and Diagnostics
UV Repair & Diagnostics Rebuild broken maps, paint models with no UVs, and find out what is actually wrong.
Baking and Patterns
Baking & Patterns Ambient occlusion and lighting baked into the texture, plus a full pattern builder.