Boing KitProcedural bouncy VFX for Unity.

Bouncy behaviors, reactors, fields, and bones.

Boing Behaviors

Drop on any object. Its transform springs toward whatever target position and rotation you set, producing a bouncy lag automatically.

Effectors & Reactors

Effectors push reactors around. Reactor Fields act as a shared proxy grid so a single field can drive many objects — sampled on CPU, or in the vertex shader via shader includes and a shader subgraph.

Boing Bones

Bone-chain solver with length, pose, and squash-stretch stiffness; optional twist propagation via swing-twist decomposition. Reacts to effectors and to lightweight in-kit colliders.