particles move in an orbit

Forums Houdini for Realtime particles move in an orbit

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Nov. 25, 2022 8 a.m.

Hi all! Tell me how to make the particles move in an orbit, like stars in a galaxy, and not fly apart? Thanks

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Nov. 25, 2022 11:09 a.m.

By using Vexpression, you can control the force based upon distance from center.

Controls popaxis force.

vector origin = {0,0,0};
orbitspeed = fit(abs(length(@P-origin)),0,1,3,0);

Controls applied drag.

vector origin = {0,0,0};
airresist = fit(abs(length(@P-origin)),0,1,0,10);

Edited by Enivob - Nov. 25, 2022 11:27:47

Using Houdini Indie 20.5
Windows 11 64GB Ryzen 16 core.
nVidia 3060RTX 12BG RAM.

Nov. 25, 2022 1:41 p.m.

Enivob, its look great, thx U!

                    
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