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Showing results for tags 'sbd'.
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Hi everyone, I'm working on a little project of mine and I'm using wire solver with SBD spring constraint. I have attribute set up on the points(before the sim), but when I try to feed the strength parameter the expression with that attribute, it acts as if the attribute was zero. The vexpression I use goes like: @theattributementioned * 1000 I've created basic example file of what i mean. The attr “mult” is what I want the strength to be ( for example “@mult * 1000”.) Any input on this would be great Thanks, Hubert wires.hiplc
Hello Everybody, I'm working on a Cloth Simulation in which I'd like to have a set of points to be Pin Constrained. But I'd like to change the Pinned point count over time, so it releases the constraints as the animation goes on. In the documentation on constraints I've found this: How to change the points that are constrained with the pin constraint during simulation By default, the Constrained Points list does not expect the points to change. However, there is a way to work around this and have the list freshly evaluated by DOPs on every frame. Right Click on the Pin Constraint node and select Allow Editing on Contents. Dive into the Pin Constraint node and select anchorobjpointgrouppos1. Change the Point Group parameter to Set Always. See the Anchor: Object Point Group Position help for more information on this node. http://www.sidefx.com/docs/houdini15.0/dyno/constraints So I've tried to do these steps but I couldn't get it to work for some reason. Maybe I'm missing something obvious. I've uploaded a very simple scene file in which I've grouped a set of points and animated the grouping bounding box. If it's no too much trouble would you guys mind taking a look at it and see if anyone can help me out with this issue? Any help or advice is much appreciated. Thanks for you time. Cheers, Laszlo cloth_animated_pinConstraint_v001.hip