Hi!
If I've made a matrix in vex, how can I get the Translate Rotate and Scale values to use in a Geo Node?
-Olivier
Matrix to Transform values {[SOLVED]}
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- olivierth
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- Gaalvk
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As far as I understand, VEX is modifications in SOP, i.e., within the object. But you want transformations of the object itself. I think using VEX is ideologically wrong. It's like trying to pull yourself out of a swamp by the ear.
If you want to take transformations from a specific point for an object, then a rivet node at the object level is probably best.
If you want to take transformations from a specific point for an object, then a rivet node at the object level is probably best.
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- BabaJ
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cracktransform() function.
https://www.sidefx.com/docs/houdini/vex/functions/cracktransform.html [www.sidefx.com]
https://www.sidefx.com/docs/houdini/vex/functions/cracktransform.html [www.sidefx.com]
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- olivierth
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Fantastic, the cracktransform does exactly what I need! thanks, Babaj!
For anybody looking into this, here's my example. I had a matrix (4@m) on a point and needed the rotation value (v@r). I did this in a point wrangle:
...and to apply it to do the rotation on my Light, I used this in each rotation channels:
-Olivier
For anybody looking into this, here's my example. I had a matrix (4@m) on a point and needed the rotation value (v@r). I did this in a point wrangle:
vector t, s; cracktransform(0, 0, 0, 4@m, t, v@r, s);
...and to apply it to do the rotation on my Light, I used this in each rotation channels:
point("../GeoNodeWithPoint/OUT/", 0, "r", 0) // path to the point, Point number, Attribute to get, component (xyz)
-Olivier
Edited by olivierth - 2026年6月7日 13:00:11
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