Vellum 101 – Grain Infection
Added 2021-02-04 08:16:04 +0000 UTCYou ask for it, Mo tries to cook up something. This time we received a few questions on how to achieve this effect done by Matt Taylor. And while we’ve seen a few other (quite involved) techniques relying on POPs, in our opinion this can be neatly done in Vellum using grains.
Comments
@Pao, All you need to do (if you're changing from Box to Sphere or any other object) is to position properly your group onto the geo. (by changing its center). Neb
Nebojsa Visnjic
2022-12-28 09:08:36 +0000 UTCI fix the render problem but I changed the box to a sphere, nothing happens, the pyrospread is empty, it's so weird.
Pao
2022-10-20 02:07:04 +0000 UTCHi, amazing tutorial. When I add material to the Grain, it doesn't show up in the render. I'm using Redshift
Pao
2022-10-18 03:07:36 +0000 UTCi had this issue as well - turned out I just missed using capital P instead of p. Check all your vex code and make sure it is exactly the same as entagmas!
Carl Herner
2021-09-18 14:26:09 +0000 UTCafter the last code in the pop-wrangle my particle start to fly everywhere
L i v i a n
2021-09-10 14:47:15 +0000 UTCAh well - answered my own question ;-) I added a rest position for each grain and used that instead of working out minpos, and it made little/no difference to the simulation time (102 frames in 2mins, vs 99 frames for your original setup). Guess the collisions etc take much more time to compute. Thanks again!
Chris Cousins
2021-02-08 14:08:31 +0000 UTCThis is a great and I didn't know about this use of the pyrosourcespread as a prebuilt infection solver, that's a really nice cheeky one! Checking for the nearest mesh point on each (sub)frame seems a bit inefficient, I wonder what would happen if the nearest point was defined at birth, would the setup get a significant speedup? I might have to try this and see...
Chris Cousins
2021-02-08 13:38:42 +0000 UTC
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