Great info here, thanks Dom!

Hi Dom, thanks for the info!

I am currently using the packed primitive technique, but it's proving to be quite cumbersome to use after the point count gets over a million or so. Does this instance object with "fast point instancing" technique utilize the point cloud/octane scatter under the hood ...

Hi!
Am I correct in seeing that the Scatter functionality in Houdini is limited to 4 scatterable objects? In C4D, this does not seem to be the case. I'm curious if there is a technical limitation here? I has hoping to utilize the Scatter tools to get around the million-instance slowdown bug, but I'm ...

Hi! This is still a problem in 2025.4 in Houdini 20.5.684. What needs to happen to fix this? If we make a scene with a 600k instances totaling a couple billion triangles and we can no long move lights without ~60 sec reload periods. I have already made a demo file about this. Years ago.

What ...

This workstation has dual 3090s on windows 10, but behavior is consistent across multiple machines, including some single 3090 and dual 4090 machines. That driver (552.22 Studio) is the one I'm currently on. Here's the scene file, thanks for the help!

Running into a problem (bug?) that has cropped up sometime between 2023.1.0.2 and 2023.1.3. I used to be able to render 20 million point instances with relative ease, and now the system runs out of system memory and fails. I have built an example scene for those that are interested.

Error on the ...

Copy that. Thanks for digging into it!

Any update on this? Forcing full reloads when the scene gets to be heavier (and consequently slow to reload) basically makes the renderer useless for lighting any serious work. Would be good to know if we should expect a plugin update soon or look for alternatives for heavier scenes. Thanks!

One more note here: I just realized if you hold onto the light handle after beginning a drag without releasing while the IPR refreshes, then once it finally refreshes you can can drag the light around interactively until you release it.

Oh, and it's probably worth mentioning that sometimes this happens with a far lower point counts (around 1M), but the high point count almost always triggers it. Thanks for looking into it!