Bullet Samples

Don't mind the mess!

We're currently in the process of migrating the Panda3D Manual to a new service. This is a temporary layout in the meantime.

Learning the Bullet module is best done by looking at working samples. A bunch of tutorials can be downloaded from the following link. The samples include all models and textures.

bullet-samples.zip (torrent) (magnet)

More samples contributed by various users follow below here:

Stack of cubes falling on top of each other:

import direct.directbase.DirectStart
from panda3d.core import Vec3
from panda3d.bullet import BulletWorld
from panda3d.bullet import BulletPlaneShape
from panda3d.bullet import BulletRigidBodyNode
from panda3d.bullet import BulletBoxShape
 
base.cam.setPos(10, -30, 20)
base.cam.lookAt(0, 0, 5)
 
# World
world = BulletWorld()
world.setGravity(Vec3(0, 0, -9.81))
 
# Plane
shape = BulletPlaneShape(Vec3(0, 0, 1), 1)
node = BulletRigidBodyNode('Ground')
node.addShape(shape)
np = render.attachNewNode(node)
np.setPos(0, 0, -2)
world.attachRigidBody(node)
 
# Boxes
model = loader.loadModel('models/box.egg')
model.setPos(-0.5, -0.5, -0.5)
model.flattenLight()
shape = BulletBoxShape(Vec3(0.5, 0.5, 0.5))
for i in range(10):
    node = BulletRigidBodyNode('Box')
    node.setMass(1.0)
    node.addShape(shape)
    np = render.attachNewNode(node)
    np.setPos(0, 0, 2+i*2)
    world.attachRigidBody(node)
    model.copyTo(np)
 
# Update
def update(task):
  dt = globalClock.getDt()
  world.doPhysics(dt)
  return task.cont
 
taskMgr.add(update, 'update')
run()
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