EXPERIMENT 03 // THREE.JS INSTANCED PHYSICS

Three.js Instanced Ballpit

Real-time rigid body collision simulator with 250+ instanced 3D spheres, cursor kinetic gravity fields, and restitution bounce physics.

SPHERES:250

GRAVITY:0.45

● MOVE CURSOR TO REPULSE SPHERES

INSTANCEDMESH RENDERING

Single draw-call architecture using THREE.InstancedMesh to draw hundreds of physical spheres in a single GPU pass.

REPELLER FORCE VECTOR

Pointer raycaster projects cursor coordinates into 3D world space to apply inverse-square impulse forces on neighboring spheres.

BOUNDING CONSTRAINTS

3D bounding AABB frustum collisions with velocity damping and customizable wall restitution coefficients.