odd one this.

when i reduce my particle separation in the grain solver past a certain level, i get squares of particles missing from my simulation.

it seems this is (hopefully) a viewport issue, as i can see other grains are colliding with -something- in the areas with missing particles.

ive tried changing the instancing limit in the display options (closest i could find to a “particle count limit”

but it does not seem to have any effect.

im not maxing out my ram ( i have a whole 2gb free of my 32 gb!)

i have “cache to disk” enabled, and a low (2.5gb) ram limit for my ram cache. looking at the timeline seems to allow 2 frames to fit in the ram cache.

im still simming, so ive not tried an alembic export yet to see if the particles are actually present. it does make flipbooking rather ineffective though.

its odd because if it was a simple particle count limit, id have seen it before, as ive done “upres” on grain sims before with at least 5x more particles, without viewport issues. also, all particles are shown if i look at the “grain source” ..

this is without any upres, but its the highest ive gone with actual DOP particle count.

hopefully somebody can advise.. ive not had a lot of response to previous posts on this forum. either it is a quiet place, or im asking lots of noob/obscure qeustions that people do not wish to, or cannot help with!


thanks, Robin.