Turn mat into a skybox material that samples the scene IBL cubemap along the view
direction (use on a large camera-centred box). Registers the skybox extension globally
(idempotent). Requires the scene to have an environment (IBL). Call before the scene is
first built.
Turn
matinto a skybox material that samples the scene IBL cubemap along the view direction (use on a large camera-centred box). Registers the skybox extension globally (idempotent). Requires the scene to have an environment (IBL). Call before the scene is first built.