extracttransform node work on line , the orient is jitter

Forums Technical Discussion extracttransform node work on line , the orient is jitter

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6cbb21962a714a9da449b4910: Member; 5 posts; Joined: 11月 2018; Offline

2023年10月18日 23:13

as you see.

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20231019.gif (79.6 KB)
untitled_j.hip (133.1 KB)


tamte: Member; 9105 posts; Joined: 7月 2007; Offline

2023年10月19日 3:04

your geo is a line, you can;'t get stable orient from comparing 2 lines, you need at least 3 points that don't lie on the same line

Tomas Slancik
CG Supervisor
Framestore, NY


6cbb21962a714a9da449b4910: Member; 5 posts; Joined: 11月 2018; Offline

2023年10月19日 3:53

this full

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6cbb21962a714a9da449b4910: Member; 5 posts; Joined: 11月 2018; Offline

2023年10月19日 3:55

tamte
your geo is a line, you can;'t get stable orient from comparing 2 lines, you need at least 3 points that don't lie on the same line

the's the flie and picture; and when ptnums is 7 ,it's also append

Edited by 6cbb21962a714a9da449b4910 - 2023年10月19日 03:58:59


animatrix_: Member; 4839 posts; Joined: 2月 2012; Offline

2023年10月19日 3:58

Hi,

As tamte said a line is not enough to define a unique transformation. If all you have is a line, you can try using an up vector to create a stable transformation.

Senior FX TD @ Industrial Light & Magic
Get to the NEXT level in Houdini & VEX with Pragmatic VEX! [www.pragmatic-vfx.com] https://lnk.bio/animatrix [lnk.bio]

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