Flex brings intuitive morphing and warping directly to Combustion 3.0 or later, After Effects 5.0 or later and Shake 2.51 or later! Superior results are achieved using RE:Vision Effects' proprietary and sophisticated technology. RE:Flex is especially easy to learn because it uses the host program's own drawing and masking tools to direct the warping and morphing; as such, there is no need to learn a whole new user interface.