Rotating each copy

Forums Houdini Indie and Apprentice Rotating each copy

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Robert Tanzola: Member; 3 posts; Joined: Aug. 2015; Offline

Sept. 6, 2015 8:50 p.m.

New user here.

I'm trying to rotate each copy by some amount depending on its copy index. So far, each time i've tried, I end up rotating the entire structure of copies as if they all share the same axis.

I hope for my end result to look something like the “twist” parameter if I were to make copies using the sweep node.

Attachments:
InstanceRotate.hipnc (84.6 KB)


Robert Tanzola: Member; 3 posts; Joined: Aug. 2015; Offline

Sept. 7, 2015 2:14 a.m.

The stamp function. Hallelujah. It's almost counter-intuitive as you're using data from downstream. I've got a long way to go.


tamte: Member; 9680 posts; Joined: July 2007; Online

Sept. 7, 2015 3:31 a.m.

try to avoid stamp() while you can as that is slowing things down quite a lot
many times you can achieve the same thing using template attributes (like N, v, up, pscale, scale, trans, orient, …) to control the transform of your copies/instances

Attachments:
instancerotate_twist.hipnc (99.2 KB)

Tomas Slancik
CG Supervisor
Framestore, NY


Robert Tanzola: Member; 3 posts; Joined: Aug. 2015; Offline

Sept. 7, 2015 7:05 p.m.

Awesome. Thank you, Tomas.

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