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How does Displacement work?
Hi. I am trying to make a fan film for the video game Portal, and I have come across a problem while trying to recreate the effect of a portal opening. As a portal opens the surface its on distorts in a simple circle around it, kind of a shockwave of sorts. I have tried using the “displace” filter and an animated donut shape but it doesnt seem to be working. I have have searched all over youtube for a tutorial on how to use the “displace” filter but it doesnt seem to work for me. I would really appreciate it if someone would help me out with this effect or at least teach me how the displace filter works. Thanks!