InstaSpawn

A free plugin for Roblox Studio · v2.1.1

Any 3D model.
Playable in seconds.

Drop in a character from an AI generator or your 3D app. InstaSpawn slices it, rigs it, places every attachment and fits its clothing cages, and you have a Roblox character ready to play.

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Works with low poly models from

Opens .fbx, .glb, .gltf and .obj files, with their textures.

parts, cut and rigged
15
parts, cut and rigged
attachment points
18
attachment points
clothing cages
15
clothing cages

From a prompt to a player.

You set the joints; the rest happens on its own. Then change anything you like.

Two pipelines. Pick the one that fits your character.

1

Pipeline 1 · outfit built in

Already clothed

Your concept, playable in seconds.

Sketch or generate your concept art, turn it into a model in your AI 3D generator, and bring that character to life in Roblox with its outfit and armor intact. You choose exactly where every joint goes, so it bends where it should. The result is cleaner than an auto-rigger's, in less time.

  1. Import: Drop in the model with its clothes on.
    01Import

    Drop in the model with its clothes on.

  2. Drag the points: Drag a point onto each joint. The cut follows it.
    02Drag the points

    Drag a point onto each joint. The cut follows it.

  3. Play: A skinned R15 character, ready to walk.
    03Play

    A skinned R15 character, ready to walk.

2

Pipeline 2 · ready for clothing

Unclothed

One body. A whole cast.

Import any character body once and set a ring at each joint. Smart loop detection intelligently finds the mesh's own edge loops and cuts along them, which keeps the joints clean and the poly count down. Rigging, attachments and the cages for layered clothing are automatic, and in seconds the body is ready for clothing, armor and gear, including anything from the Roblox Marketplace.

  1. Slicing: Set a ring at each joint. Smart loop detection detects the mesh's own edge loops, reducing poly count.
    01Slicing

    Set a ring at each joint. Smart loop detection detects the mesh's own edge loops, reducing poly count.

  2. Joints: Ball joints at every cut, so the parts bend cleanly.
    02Joints

    Ball joints at every cut, so the parts bend cleanly.

  3. Auto-rig: Rigged automatically: skinned, every joint placed, test walk included.
    03Auto-rig

    Rigged automatically: skinned, every joint placed, test walk included.

  4. Attachments: All 18 attachment points, for hats, weapons and packs.
    04Attachments

    All 18 attachment points, for hats, weapons and packs.

  5. Cages: Eye and mouth markers set, then clothing cages fitted to the body.
    05Cages

    Eye and mouth markers set, then clothing cages fitted to the body.

  6. Clothing: Ready to wear: layered clothing and armor fit over the body and its gear.
    06Clothing

    Ready to wear: layered clothing and armor fit over the body and its gear.

From one body, the horde is spawned.

The same body, dressed ten ways. That's a modular character system from a single import.

Ten characters from one body, each in different clothing, armor and weapons

The hard parts are already done.

01

Rigged, joint by joint

Set a point or ring at each joint, and your model is cut cleanly there into the 15 parts Roblox expects. Then it's rigged as rigid parts or as one skinned mesh with painted weights, so it animates like any Roblox character.

  • -Smart loop detection: cuts along your model's own edge loops, keeping the triangle count down
  • -Rigid or skinned
  • -A test animation to see it move
02

Every attachment, placed

Hats sit on the head, tools in the hand, backpacks on the back. All 18 attachment points are placed from your character's own shape. Move or turn any of them right in the view.

  • -Try hats, weapons and gear on in the preview
  • -Fine-tune with handles or typed values
03

Ready for layered clothing

Every part gets a fitted clothing cage, so layered clothing from the Marketplace wraps your character the way it wraps Roblox's own bodies. If skin shows through a shirt, adjust the cage there and the clothing sits clear of it.

  • -Adjust the cages for the whole body or one part at a time
  • -Try test clothing and armor on before you export

Your next character is seconds away.

Simple slicing and a rigid rig are free for good. Pro adds precise cuts, skinned rigs, attachments and clothing cages.