You could try “setTwoSided”, but I’m not sure if it works on collision nodes.
collisionNode.show()
collisionNode.setTwoSided(True)The only thing that I think would affect whether the inside of a sphere around your avatar shows up or not would be the “near” value on “base.camLens” object (if your character’s head were too close to the inside of the sphere it might not show up when looking from the avatar’s POV), you can read about the camera and such here: Lenses and Field of View