torsion, rotary deform.gyration, revolve .tweak converging checker, chequered pattern / background. centrifuge, spin

abstract asymmetric asymmetry background backgroundvertigo centrifuge checker chequered circular concentric converging deformation deformed deformgyration distortion dynamic elementtweak epicenter eye eyestrain free geometric geometry graphic grid gyration hypnosis hypnotic illusion illustration irregular monochrome monocrome opart optical pattern quadrate radial radiating revolve revolved rotary rotating rotation royalty spin spinning spiral square strain swirl symmetry texture torsion twirl twist vector vertigo vortex whirl whirligig whirligigvortex whirlpool