moveForward method

void moveForward(
  1. dynamic distance
)

Implementation

void moveForward(distance) {
  // move forward parallel to the xz-plane
  // assumes camera.up is y-up
  _vector.setFromMatrixColumn(camera.matrix, 0);
  _vector.cross2(camera.up, _vector);
  camera.position.addScaled(_vector, distance);
}