visual illusion . two balls are moving on rotating blue funnel with yellow rhombuses.

abstract are art background balls blue bluff center checkered chimera circularly concentric concept deceptive delusion distorted dream endless eye eyesight fallacy fancy fantasy funnel hole illusion illustration imagination middle motion motley mottled movement moving optical phantasmagoria pipe quadrangles rhombuses rotating round seeming space spiral style surface surreal trick two vector vision visual visually yellow