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cloth-sim

Garment blockout, cloth simulation, pin groups, and bake to shape keys or caches for characters and props in Blender via MCP.

The English summary is being prepared. Showing the original description.

Works withBlender
See how to install

Files included (4)

  • SKILL.md2.4 KB
  • references/bake-targets.md239 B
  • references/cloth-settings-presets.md436 B
  • references/pin-and-collide.md375 B

SKILL.md (original)

Review the instructions the agent will receive before you install.

Cloth Sim

Garment blockout → sim → art-direct → bake. Stable pins. Engine-friendly caches/shape keys.

When to Use

  • Dresses, capes, coats, flags, banners
  • Character clothing that needs drape
  • Baking sim to shape keys or Alembic/USD caches
  • Pre-roll settling before animation export

Workflow

Garment mesh (quad-friendly) → Vertex groups (pin/collide)
  → Cloth modifier settings → Collision objects
  → Pre-roll settle → Sim pass → Art-direct fixes
  → Bake shape keys / cache → Cleanup → Export

Mesh Prep

  • Quads preferred; even density on deforming areas
  • Avoid long skinny triangles on folds
  • Apply scale before sim
  • Separate garment from body collider

Vertex Groups

GroupPurpose
PIN_ClothAnchors (waist, shoulders, collar)
COL_IgnoreOptional non-colliding regions
STIFF_HighBelts, seams that should resist stretch

Settings Starters

LookQualitySpeedBending
Soft dress8–121.0Low
Stiff coat5–81.0Higher
Flag/cape8–101.0–1.5Low–mid

Tune mass and air viscosity for scale. Always run a settle pre-roll.

Bake Targets

TargetUse
Shape keysGame poses / few frames
Alembic/USDCinematic caches
Armature weightsIf converting to deform-only

Constraints

MUST DO

  • Apply scale; define pin groups before long sims
  • Collide against simplified body capsule/mesh
  • Art-direct after sim (sculpt/corrective keys)

MUST NOT DO

  • Sim hero cloth on ultra-dense sculpt meshes
  • Skip pre-roll (starts mid-air / exploding)
  • Export raw unstable caches

Reference Guide

TopicReferenceLoad When
Cloth Settings Presetsreferences/cloth-settings-presets.mdWhen needed
Pin And Collidereferences/pin-and-collide.mdWhen needed
Bake Targetsreferences/bake-targets.mdWhen needed

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