x

Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

HISM problem with culling

Hi, UE guys, I am new with UE, but have experience with other engines. I began to understand the work of instancing, culling and LOD systems and find some problem and some questions.

1) Find strange behavior of culling for Hierarchical Instanced Static Mesh (HISM) in blueprint. Problem was reproduced in test project. Culling is cuts off geometry which is must be visible. Maybe exist any configurable object bounds for culling, but I not find it.

Culling good

Culling problem

2) HISM scene object -> Details panel(of HISM component) -> Instance End Cull distance This parameter doesn't affect on visibility of scene objects. This parameter did not produce any reaction on culling. missed distance culling

3) I didn't find any possibility add custom params for instance - only transform. Can I get per instance info in material: current LOD, LOD blend factor (on pic. for understand terminology)? It will be also good for setting any custom per params... blend factor

In attach simple project that reproduce problems (open level in: Context -> HISM_Culling) test project

Product Version: UE 4.18
Tags:
more ▼

asked Mar 14 '18 at 03:14 PM in Rendering

avatar image

Andrey Bykovskiy
1 1 1

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

1 answer: sort voted first

Problem 1 and 2 not reproduced in UE 4.19 - not actual.

Anyone can get solution on problem 3? Previously we use some per instance customization - this opportunity was very much in demand with us.

more ▼

answered Mar 15 '18 at 08:49 AM

avatar image

Andrey Bykovskiy
1 1 1

avatar image Andrey Bykovskiy Mar 15 '18 at 09:18 AM

Find issue 2 as registered bug in tracker https://issues.unrealengine.com/issue/UE-53024 , but I am not reproduce this in test project with 4.19 (target version for bug fixing is 4.20)

(comments are locked)
10|2000 characters needed characters left
Viewable by all users
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question