A free 3D modeller made for GTA V and FiveM. Build a building, unwrap it, dress it with the game's own shaders, then place it on the real map and export a working resource.
What it does
The modelling workflow you already know, with GTA V built in: the game's shaders, its scale, its map and its file formats.
Vertex, edge, polygon and element levels, loop cuts, inset, extrude, bevel, bridge, snaps and a modifier stack. A four-storey building takes minutes.
Cube projection at true size, a UV editor with islands, packing and texel density, and a library of more than 6,000 materials taken from the game, each with its own shader and parameters.
Layers, folders, smart materials and smart masks, brushes, decals and baking, on the model itself. Start from a GTA fabric, wear the edges, paint the seams, add dust in the creases.
MAP mode streams the whole of Los Santos and Blaine County from your game files. Every modelling tool works there: build a plot in place, edit a game model, open an interior, then save the .ymap and .ytyp.
Draw the plan, and the rooms, portals, door frames, skirting and dirt follow. Connected rooms share one door lining through the wall.
Any model becomes a GTA weapon on a game donor's skeleton: muzzle moved, metas cloned, /give command written.
Finds the four wheels, fits your car on a donor like sultan2, writes the .yft, handling and /spawn.
Draw, inflate, smooth, pinch and grab on any mesh, then clean it for the game.
Point, spot and capsule lights with GTA's own values, Sollumz-compatible.
One key (F10) writes .ydr, .ytd, .ybn and the fxmanifest, checked by loading them back.
Push the resource straight to your test server and restart it.
Video tutorials
18 short films recorded in the app itself, in the order you need them: watch the tour, then go part by part. Each one shows the real clicks and keys.
What Polymorph is, in two minutes
Move around and model
Cut, open, stack modifiers
Materials, UVs, sculpt, paint, animate
Lights, MLO rooms, the whole map, weapons and cars
GTA scale
Auto scale reads the object's name (chair, tabouret, door, counter…) and brings it to the height props have in the game, scaled from its base so it stays on the floor.
| Object | Name it… | Height |
|---|---|---|
| Ped | ped, person | 1.818 m |
| Door | door, porte | 2.300 m |
| Door handle | handle, poignée | 1.127 m |
| Bar counter | bar_counter | 1.067 m |
| Counter / sink | counter, évier | 0.900 m |
| Desk / table | desk, table | 0.800 m |
| Stool | stool, tabouret | 0.750 m |
| Seat (seat height) | seat, bench | 0.455 m |
| Coffee table | coffee, table_basse | 0.429 m |
Download
Windows 10 or 11, 64-bit, a DirectX 11 graphics card. Run the installer, then start Polymorph from the Start menu; updates install over it and keep your settings. Prefer no installer? Unzip the zip and run Polymorph.exe. For MAP mode and the forges, point it at your GTA V folder.