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"

How do I ignore subtractive collision?

I convert a brush group into static mesh. But when I put collision on the object, I can still collide with subtractive brush.(colliding with air).alt text

Product Version: Not Selected
more ▼

asked Mar 29 '14 at 01:11 AM in Using UE4

avatar image

11 4 6 7

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

1 answer: sort voted first

Hey rleiker13,

When you create your Mesh from a brush, are you then adding collision as Simplified Collision? If so, you're creating a collision box around your entire Mesh.

If you open your Mesh in the editor and set the Collision Complexity to Use Complex Collision As Simple, this will create collision based on the Mesh's faces, and won't place any collision around the hole in your Mesh. You need to be cautious with this, however, as a Mesh with many faces with Complex Collision on it will require much more calculation and may result in collision check fails. For something as simple as what you're showing, however, this should work fine.

An alternative would be to create the shape you're looking for from multiple Meshes, or to create individual blocking Volumes around your hole and use that for collision detection.

Hope that helps!

Ben Halliday

more ▼

answered Mar 29 '14 at 07:42 PM

avatar image rleiker13 Mar 30 '14 at 01:15 AM

Thx! i appreciate your help!

(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