View Full Version : effector that is inverted and takes on angles?

06-02-2008, 12:43 PM
hi guys,
anybbody knows of an effector like displacment plugin that also picks up rotation and can be inverted. sort of like a real time slicing company, that just chops of what is underneath it.

lets say i have a coke bottle with a model of it full filled, if i want to make the top part of the liquid move, then i would just clip it with my null or plane or what ever... ive seen my friend do it in 3ds max, with a slice tool.

06-02-2008, 03:08 PM
I think you can do this with the plane effector. THe trick is to parent the plane null and the item being clipped to another Parent null. Then, rotation is done with the Parent null.

Use negative effector numbers to invert.

06-04-2008, 09:46 PM
sorry can u explain it a bit more, my effectors dont seem to accept negative values, and also they dont pick up any rotation.

06-05-2008, 10:57 PM
My fault. It seems the effector plugin needs updating. :(

Another way to do it is add an expression displacement plugin.

Here is how I laid it out (I've attached a screenshot for faster explanation):
Choose "Point Y", then enter in:

A < B ? A : B



Then parent Effector null to your displaced object. This will then also rotate with your object. If you wnat it opposite, just change the < or > sign.

NOTE: It will not update in real-time. It's slow. Scrub the timeline bar to see it update.