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"

Office Holiday

Epic Games' offices will be on holiday from June 22nd to July 7th. During this period support will be limited. Our offices will reopen on Monday, July 8th. 

LineTraceSingle works strangely

I have a house mesh that's split up into several different static meshes: one for the outer walls, a few for inner walls, etc. To prevent having to worry about which collision box should belong where, I put them all in the outer wall mesh.

alt text

Now the strange thing is that when I attempt to perform a line trace through an inner wall, said inner wall is not sensed.

alt text

It only works if I'm overlapping the outer wall MESH while I'm preforming this trace.

alt text

This makes no sense to me. Why does the mesh matter (especially when I'm not even tracing through it)? Shouldn't it be operating on only the collision primitives? Player-Wall collision does work properly--just that a line trace does not.

Here's the code I'm using:

 // CollisionParams is just to draw the trace line for debug
 FHitResult HitResult(ForceInit);
 GetWorld()->LineTraceSingle(HitResult, targetLoc, playerLoc, CollisionParams, FCollisionObjectQueryParams::AllObjects);

What's going on here and how can I get this to work?

Product Version: UE 4.8
outerwalls.jpg (872.8 kB)
01.jpg (68.3 kB)
02.jpg (29.4 kB)
more ▼

asked Aug 17 '15 at 05:42 AM in C++ Programming

avatar image

166 32 42 56

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

0 answers: sort voted first
Be the first one to answer this question
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