btTransform transform; transform.setIdentity(); transform.setRotation(btQuaternion(btVector3(0.0, 1.0, 0.0), 0.5)); // rotates 0.5 radians around the y-axis
btTransform transform; transform.setIdentity(); transform.setOrigin(btVector3(1.0, 2.0, 3.0)); // translates the origin by (1, 2, 3) btVector3 vector(1.0, 0.0, 0.0); btVector3 transformed = transform(vector);This example shows how to apply a translation to a btTransform object using the setOrigin method. Then, a vector (1, 0, 0) is transformed using the transform method of the btTransform object, which applies the translation and any other specified transformation to the vector. Package library: Bullet Physics (often referred to as just "Bullet") is an open-source physics engine and graphical middleware library.