No sign-up. No API keys. No subscription. No per-generation fees. No leaving Unity. Just one-click 3D model generation from text or images.
Type what you want — a wooden barrel, an ornate sword, a sci-fi crate. Click Generate. In under 60 seconds, a Unity Prefab is downloaded, automatically processed with PBR materials, given 4 LOD levels, centered pivot, and (optionally) dropped into your active scene.
This asset uses Microsoft TRELLIS (CVPR 2025) via fal.ai for 3D generation, and FLUX schnell for the text-to-image step.
AI-Generated Models Showcase | Online Documentation
🎁 INCLUDED MONTHLY ALLOWANCE
50 generations are issued every month with your purchase. 50 generations is enough for a substantial prop library — barrels, crates, weapons, furniture, architectural details, sci-fi parts. The allowance is issued automatically every 30 days; no need to remember anything.
💡 WHY PROMPTMODEL
✅ NO SUBSCRIPTION — buy once, generate every month. No recurring fees, no per-generation costs.
✅ TEXT OR IMAGE INPUT — type a prompt for prop concepts, or drop a reference photo for image-to-3D when you have a specific look in mind.
✅ FULLY AUTOMATIC IMPORT — GLB download, PBR material extraction, LOD generation (50%/25%/10% triangles), pivot centering, and prefab wrapping all happen automatically.
✅ AUTO-SPAWN INTO SCENE — optional checkbox drops the finished prefab into your active scene at world origin, selected and framed in the Scene view.
✅ GENERATE 4 VARIATIONS AT ONCE — one click on any prefab → 4 alternative versions in a 2×2 picker → import the ones you like. Different seeds, same prompt, meaningfully different geometry.
✅ BUILT-IN MODEL LIBRARY — every model you generate lands in a searchable browser (Window ▸ PromptModel ▸ Model Library): a category sidebar with Favourites and your own custom categories, a sortable thumbnail grid with a card-size slider, and a drag-to-orbit / scroll-to-zoom 3D preview showing triangle and vertex counts.
✅ ZERO RUNTIME OVERHEAD — all scripts are Editor-only. Your build size and runtime performance are completely unaffected.
✅ INSTANT ACTIVATION — enter your Asset Store invoice number, click Verify, and start generating. No website signup, no account creation.
🎨 WHAT YOU CAN GENERATE
Game props — barrels, crates, treasure chests, weapons, tools, lanterns
Furniture — chairs, tables, stools, beds, cabinets, shelves
Architectural details — pillars, signs, banners, debris, ruins
Fantasy items — staves, potions, scrolls, runes, magical artifacts
Sci-fi assets — consoles, antennas, containers, mechanical parts
Natural objects — rocks, tree stumps, mushrooms, crystals, fossils
Stylized characters — small statues, figurines, animals (single subject)
And much more — any object you can describe or photograph
🚀 HOW IT WORKS
1. Enter your Asset Store invoice number (from your purchase confirmation email) and click Verify.
2. Choose Text mode or Image mode in the dropdown.
3. Text: type a prompt like "wooden treasure chest with iron bands". Image: drop a PNG/JPEG/WebP into the drop zone (or drag a Texture2D from Project view, or click to browse).
4. (Optional) Type a name. Leave blank to auto-derive from your prompt.
5. Click GENERATE.
6. The cloud AI generates a textured mesh. The Unity package downloads it, applies PBR materials, generates LOD0/1/2/3 with UnityMeshSimplifier, centers the pivot, and saves a Unity Prefab.
7. With Auto-Spawn checked, the prefab also drops into your active scene at world origin, selected and framed.
Want alternatives? Right-click any PromptModel-generated prefab → Generate similar → 4 variations stream in as thumbnails → tick the ones you like → Import.
⚠️ WHAT'S INCLUDED VS NOT INCLUDED
PromptModel produces single-subject 3D props for any Unity project. Specifically what's covered:
✅ Single-object models — props, items, furniture, architectural pieces
✅ PBR materials — albedo, metallic, roughness textures
✅ Auto-generated LODs at 100%, 50%, 25%, 10% triangle counts
✅ Centered pivot, ready to drop into scenes
✅ Built-in render pipeline + URP support out of the box
✅ Model Library window — browse, search, sort, favourite, categorize, 3D-preview, and one-click drop any past generation into your scene
Not included (be aware before buying):
❌ Photorealistic cinematic quality — game-ready stylized PBR is the strength; photoreal renders are not
❌ Hero characters with detailed faces — TRELLIS handles props much better than people
❌ Multi-object scenes — generate one model per generation, not whole environments
❌ Animated meshes / rigs — outputs are static meshes only
❌ HDRP support — coming in v1.1; works in URP and Built-in RP for v1.0
❌ Lighting-free albedo — like most current AI 3D generation models, TRELLIS bakes some lighting into textures. Best results with soft scene lighting; see documentation for working around this.
📧 Support & Questions
For questions, bug reports, or feature requests, reach out at:
We typically respond within 24-48 hours on weekdays.
Works with Built-in RP and URP. Requires Unity 6 LTS or newer. Internet connection required during generation — generated prefabs and the sample scene work fully offline forever after.
