About PromptModel - AI 3D Model Generator + Library
- Tools, Systems & Learning > Development Tools & Automation
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.
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.
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.
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.
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.
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.