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+--- Thread: How to move partices along local axis using script? (/thread-1288.html)
How to move partices along local axis using script? - ThirdDimension - 11-20-2019
Hi,
Does anyone know how to move particles along local axis using script operator? For example: add 10 units to local Z axis.
Using SetPos() I can only move particles in world-space but not local.
RE: How to move partices along local axis using script? - tyFlow - 11-20-2019
Get the particle TM...then use the appropriate row as your axis of movement.
So if you want to move the particle along its z-axis by 10 units, you'd add (particleTM.row3 * 10) to its position.
RE: How to move partices along local axis using script? - ThirdDimension - 11-20-2019
You made my first script working
Thank you!Also I noticed small mistype in script manual: [Marix3] GetTM(int sInx)
RE: How to move partices along local axis using script? - tyFlow - 11-21-2019
Ah, thanks! Will fix
RE: How to move partices along local axis using script? - ThirdDimension - 11-29-2019
I have similar question to last one only about local rotation. After few days of research I found that max script has rotateZmatrix function to apply rotation to existing matrices. In tyFlow there is no such function. So basically to do this in tyFlow I need to manually write equation for TM rotation?
RE: How to move partices along local axis using script? - tyFlow - 11-29-2019
Yes at the moment there are no Matrix3 rotation functions in tyFlow....so you're on your own for that
Here's a page with some applicable math:
https://github.com/andykorth/opentk/blob/master/Source/OpenTK/Math/Matrix3.cs
To rotate any given matrix, create a rotated identity matrix and then multiply that on the left side of your target matrix.
RE: How to move partices along local axis using script? - ThirdDimension - 11-30-2019
I don't know how, but with some dark magic I got this rotation working. That generalization you wrote helped me a lot. Thank you!
RE: How to move partices along local axis using script? - FirePro - 02-07-2020
(11-20-2019, 07:43 PM)tyFlow Wrote: Get the particle TM...then use the appropriate row as your axis of movement.
So if you want to move the particle along its z-axis by 10 units, you'd add (particleTM.row3 * 10) to its position.
Hi, I have same task - need move particles along their local Y-axis (500mm). Can you help me? Thank you.
Code:
public void simulationStep()
{
for (int i = 0; i < eventParticleCount; i++)
{
int sInx = tf.GetSimIndex(i);
float eventAge = tf.GetEventAge(sInx);
if (eventAge == 0)
{
Matrix3 particleTM = tf.GetTM(sInx);
//What I need place here for move particles along their local Y-axis (500mm)
tf.SetTM(sInx, particleTM);
}
}
}RE: How to move partices along local axis using script? - ThirdDimension - 02-07-2020
Script:
https://pastebin.com/ZY8T5jwR
You only need to change "move" value
RE: How to move partices along local axis using script? - FirePro - 02-07-2020
(02-07-2020, 10:26 AM)ThirdDimension Wrote: Script:
https://pastebin.com/ZY8T5jwR
You only need to change "move" value
Thank you very much! It work
RE: How to move partices along local axis using script? - FirePro - 11-29-2021
(11-29-2019, 06:47 PM)ThirdDimension Wrote: I have similar question to last one only about local rotation. After few days of research I found that max script has rotateZmatrix function to apply rotation to existing matrices. In tyFlow there is no such function. So basically to do this in tyFlow I need to manually write equation for TM rotation?
Hi!
Did you solve this task?
I have the same problem, can you help?
I need to rotate the particles on the local z-axis randomly
Thank you!
RE: How to move partices along local axis using script? - tyFlow - 12-01-2021
The Spin operator has local axis options.
Also if you need to fine-tune rotations, the Script operator now has matrix rotation functions.