Deborah R. Fowler
Peach Powder Puff
Posted Dec 23 2023keywords: particles, procedural animation, redshift, pop grains, attribute transfer, filecache, attribute delete
Created in Houdini 19.5.303 LC.
Experiments with pop grains - so far compared to my experience with vellum grains, pop grains seem to have more consistent behavior when refining (decreasing particle separation).
The work entitled Peach Powder Puff was created using pop grain with about 1.2 million particles (1,199,079 points), rendered in Redshift.
A simple popGrainSetup.hiplc
See the tips on the sticky
- display as lit spheres to get the proper size - in simulations having intersections to start will cause behavior issues in general
- Adding some jitter scale will get rid of the perfect alignment
- On a popnet at sop level, Object Merge tab allows you to "import" out the particles only from your simulation (similar to a dop import node)
- In addition, link the particle separation of your points from volume to your pop grains node inside your popnet
initial condition
Generally a pre-roll time takes care of the grains, allowing them to settle. There are three approaches that could be taken (possibly others - after all, it is Houdini),
- one a long pre-roll,
- two a carefully constructed sleep and awaken pop set up (example here popGrainSleepAwake.hiplc), and
- three an initial state from a sim.
Of note, I was trying some variations and had simmed out (1.5 days) a version with 4,912,657 points, however the render times I did not have the patience for - perhaps it's time for me to get a new Desktop.
Also on Instagram https://www.instagram.com/p/C04MuzZpUiA/
and YouTube https://www.youtube.com/shorts/bE14VOYAVuY
See also Sprinkles