[ENG] HOUDINI VEX Tutorial - Adjust volume voxel density base on it's distance to the nearest point

[@antonthorntonwallen4297]

thank you for explaining every step on how you are are aproccing it. Great video! :)

[@quentinrossetto1899]

My pleasure !

[@SeanHedman]

Hey super handy, ben looking for an organic way to do a volume falloff that isnt done on the source and not using relbbox or remap by P components post-sim. Thanks ever so much!

[@user-sl309jd90]

Thank you for all the fun tips videos! I'm watching them all. One thing I'm curious is why you use nearpoint here instead of just referencing the single point as point(1, "P", 0) in the distance function? Is it because in real projects the target might not be a single point but multiple?

[@quentinrossetto1899]

near point allow you to have more than one point on the second input, that way you can hide different things

[@edusszfx]

Thank you! Great explanation!

[@niljimenez2262]

Hi! Is there any way to know the max and min distance values? I'm trying to reduce density based on distance from camera. Thank you!

[@quentinrossetto1899]

Out of the top of my head, before this volumewrangle you could measure the distance between a bound and your camera, and then promote as a detail attribute the maximum value. You can then acces it with the detail function : detail("../mynode", "maxdistanceattribute",0)

[@xavifozcarbonell7905]

Brilliant!

[@TheXZ111]

you can use distance2 to gain a bit more optimization in terms of speed, FYI

[@quentinrossetto1899]

oh ! thanks for the tips i'll try it out !

[@sebastienlopez7803]

Hello Prof ! 🤡

[@Thomascourtois34]

thank you

[@angelous4x]

thankyou!!!!

[@ainkycheng]

Thanks!! When i use geo object ,how to write the vex ?

[@quentinrossetto1899]

hey, not sure where are you using a geo objet ? if it's to replace the second input, no problem. If it's to replace the first one, then work on the Alpha attribute instead of density

[@troopxl666]

Thanks!