Hi, I have a quick question. I want to be able to add a pinch effect (like the pinch effect in in photoshop) to an image or procedural texture in vops. Is there a node that does that already, or any other quick way? I would do it directly in photoshop, but it needs to be animated. Please help me!!
You could use an edit sop with soft radius and scale it down to pinch if you want to affect an image just apply it to the geometry first, a grid with lots of points
that might work
varomix - Founder | Educator @ Mix Training Technical Artist @ Meta Reality Labs
Yes you get it right! Unfortunetly, I think it needs to be done in the vops network. It's for an iris texture map; I want to dilate or contract. And it's actually done using a technique you suggested me in another thread, with an animated texture projection….
you can plug uv and a constant set to 0.5 into a distance node, this should give you a centered circular falloff. Then plug this into fit range so you can easily control the start/end of the falloff (min/max source) and intensity (max dest). Now plug this into the scale input of a uvtransform node, and the uv into the uv input. I've used this type of thing before to make pinches and twirls.
Thanks for the answer Serg, I've been playing with a similar setup all night yesterterday; almost gone crazy. Right now, I don't seem to get that pinch effect right from the middle of the image, there's something I'm missing for sure…I just tryed your suggestion, but still get the same problem…Here's an image of the result I get, also included the scene.
Hi! Just out of curiosity, would it be possible to have this setup done in vop sops.I think it could be really usefull to create some deformers. I've tryed, but there no “uv transform” node, is there an equivalent for vop sops?
it just sets the Z to 0 because you are interested only in XY(UV) 2d vector so any value in Z will cause incorrect values in distance from center the rest is just vector math
