Hi everyone, I am dabbling with volumes recently and I wish to know how can I have a fall-off of volume, gradiently? (see image attached).
I have zero to minimal knowledge of volume vop. Forum Users talk about volume sample and volume gradient when I search on forums regarding this issue.
**Additional Info– Better still if I can control, say, point A is densest and point B is thinnest.**
Thank you in advance.
Gradient Fall-off Volume
10937 10 0- Tanner Chow
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- mestela
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- animatrix_
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Inside a volumewrangle you can just do:
@density = 1 - relbbox(@P).y;
Senior FX TD @ Industrial Light & Magic
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- animatrix_
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If you want to have falloff for 3 axes, you can do something like this in a Volume Wrangle SOP:
vector r = relbbox ( @P ); @density = ( 4 * r.x * ( 1 - r.x ) + 4 * r.y * ( 1 - r.y ) + 4 * r.z * ( 1 - r.z ) ) / 3;
Senior FX TD @ Industrial Light & Magic
Get to the NEXT level in Houdini & VEX with Pragmatic VEX! [www.pragmatic-vfx.com]
youtube.com/@pragmaticvfx | patreon.com/animatrix | pragmaticvfx.gumroad.com
Get to the NEXT level in Houdini & VEX with Pragmatic VEX! [www.pragmatic-vfx.com]
youtube.com/@pragmaticvfx | patreon.com/animatrix | pragmaticvfx.gumroad.com
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