Showing posts with label matrix. Show all posts
Showing posts with label matrix. Show all posts
Tuesday, 27 August 2024

creating orient and rotating points around vector

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I think Toadstorm posted this somewhere on odforce... but it's a useful little vex snippet   vector fwd = v@N; vector up = {0,1,0}; // i...
Thursday, 9 March 2023

creating orient for objects

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Simon Verstraete - Houdini blog #42 Orient (artstation.com) SUPER useful to make orient from your Normal and Up vectors (you will of course ...
Wednesday, 26 October 2022

using a transform that relies on $CEX $CEY $CEZ with a differently shaped/sized object

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Use the julian matrix - (point wrangle) matrix M=detail(1,"xform"); @P=@P*M; plug the transform you want to "copy" into ...
Monday, 9 March 2020

orient point attribute

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I always seem to forget/ignore the orient attribute, and it always bites me in the ass.. (think instancing objects onto points with random...

Rotation in vex

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Rotation round an arbitrary axis, in vex nicked from Rich Lord's handy notes and scenes -  https://www.richlord.com/tools/ Placed he...
Tuesday, 3 September 2019

rotating point normals, with vops

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To rotate a point's normals (or any vector for that matter) you need to multiply it with a matrix and an angle (usually in radians) and ...
Wednesday, 19 June 2019

rotate packed primitives/ WALTER ROTATE

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how to rotate a/bunch of packed primitive/s - Use a WALTER ROTATE. in a primitive wrangle: float randomFactor=rand(@primnum+2323)*chf(...