“this is a test of a gravitational lensing done in houdini.
I’ve simulated particles shooted from camera being attracted by a force, the closest they pass to the center of the force the more they are bent. I’ve used a lens shader mapped to the plane. This could have been done with a proper equation or with a much easier and controllable function. But I did it this way because it’s houdini and you can do it !”