Hierarchical Instanced Static Mesh Blueprint Freeze

Development Programming & Scripting Blueprint
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1

Hi there,

I have a Hierarchical Instanced Static component with ~3000 instances.

Whenever I select the component, or add/edit variables & functions to the blueprint it freezes for a around 40 seconds or so. Compiling also takes around the same duration. This happens regardless of whether I’m actually changing the HISM component.

Thanks

2

Hi ,

  • Does this occur in a clean, blank project with no additional content or is it limited to one project?
  • What steps can I take to reproduce this on my end?
  • Does this only occur with a single asset or is it any asset?
  • Can you post your dxdiag here so I can take a look?
3

Hi ,

We have not heard from you in several days. I am marking this as answered for tracking purposes. If you are still experiencing this error, please comment with the requested information.

4

My apologies for the delay.

It does occur in a blank project but nowhere near as severe as in my existing project.

Though there’s a slight lag on creating new variables but it’s acceptable. However It’s most notable when compiling or selecting/deselecting the HISM component in the blueprint hierarchy.

To reproduce…
Create a blueprint with a HISMcomponent.
Create thousands of instances (you can paste the contents of hism.txt attached into the instances array of the HISM component).
Select/Deselect the HISM component (regardless of the current active tab)
Compile the blueprint.
Create new variables (as I said not so bad in a blank project).

The lag is present regardless of what mesh I use in the HISM component.

DXDiag attached.

Thanks

5

Hi ,

Unfortunately, I’m not seeing anything I’d consider abnormal on my end. Once I hit ~20000 iterations I started noticing a slight delay, however this is something I would expect given the amount of information being processed and rendered. It didn’t hit 40+ seconds of delay until I ran the iteration count to 100,000. Do you have any other steps I can take to reproduce this on my end?