problem with octane scatter and particles in alembic

[alexlomarco]

Hi,
I did a granular simulation with realflow and exported to alembic (about 3 million particles).
I imported the alembic with the "point as polygon object" option, used octane scatter and set the alembic as the source and the distribution in vertices.
As objects to use in the scatter I used three spheres with three different colors (red green and blue).
It all works perfectly and very fast, but I noticed in the final render that, every 5 frames, the distribution of the spheres changes so, for example, if in a particle I had the red sphere, every five frames it changes by putting for example the green one and so on every following 5 frames. The result is that every 5 frames there is a change of the color distribution in all the particles.
I then tried importing the alembic with the option “point as particle geometry” by connecting it to a group of thinking particles and using a cloner in “multi instance mode” and the group of thinking particles as the distribution.
It all works and the particle distribution remains solid over time, the only problem is that it takes a long time to render because, with each frame change, it loses a lot of time in preparation.
Is there any way to use octane scatter avoiding that, every 5 frames, it changes the color distribution ?

Thanks

[bepeg4d]

Hi,
with "point as polygon object" method, instead of using Octane Scatter, try with MoGraph Cloner in Multi Instance mode, and Display mode set to None.

ciao,
Beppe

[alexlomarco]

Ciao Beppe,
it seems that the problem is the alembic generated by realflow. Every 5 frames it changes the id of the particles, so even doing it with the cloner still gives the same problem.
Passing through thinking particles somehow avoids the problem, but increases the render time by a lot.
Thanks for the support