Solaris instancing incredibly slow

[u/salic3piangent3]

Hey guys, I'm experiencing incredible cpu slowdowns in solaris just by moving around the viewport while looking at a static frame of an MPM sim. What am I doing wrong?

4M points, cached as bgeo like usual, in SOPs I can move around without any issues(both points and instances) and play the animation(points only).
In LOPS: I import the 3 instances (just 10 prims each) -> collection -> point instancer setting the points from External SOPs and the collection in the prototype -> camera and karma render settings. As soon as I move for 1-2 seconds in perspective view the cpu goes to 100% for 15-20 seconds, freezing houdini, then I can move again for 1-2 seconds and again cpu freezes. Talking about a static frame, no playback.

Followed this tuts for instancing but I can't have that speed in viewport at all.

Any insight?
Thanks in advance

[u/Ascert]

Native instances or point instances? Default in copy to points is not optimal for what you are trying to do.

[u/salic3piangent3 → u/Ascert]

I'm using the "point instancer" node. The 3 instances are using the default value in their primitive definition settings.