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"

Adjusted vertices of subtractive brushes cause surfaces to disappear

I'm having a weird issue where I'll be creating hallways/rooms/etc through extruding surfaces on a subtractive brush from within a much bigger additive box. I'll leave that subtractive brush alone, go and make some more additive/subtractive brushes elsewhere that don't intersect with this original piece, come back and find that some of the extruded surfaces have stopped subtracting completely, or rather the resulting surfaces are not showing.

Example: http://puu.sh/7X3xi.jpg

Example: http://puu.sh/7XorA.jpg

After doing some more digging, it seems to be related to moving vertices. An old position of the vertices where they previously overlapped seem to leave behind a void of broken subtracting. Building geometry does not help.

Example: http://puu.sh/7Xooj.jpg

For this subtractive brush, the two left rear vertices used to be in the position indicated now by the gap. Both brushes are subtractive. Here's the 2nd subtractive brush next to it which doesn't seem to help any.

Example: http://puu.sh/7XorA.jpg

Any idea what's going on and how I can fix this? This is doing a swift job of breaking all my attempts at creating maps. Creating more complex brushes through extruding surfaces is now completely out of the question because of the certainty of this issue. At least when things break on one simple box brush, I can recreate it. But not so much for a brush with many surfaces.

Product Version: Not Selected
more ▼

asked Apr 05 '14 at 10:48 PM in Bug Reports

avatar image

6 3 5 6

avatar image Adam Davis STAFF Apr 06 '14 at 02:03 PM

Hi 7minutesdead,

Have you attempted to rebuild geometry after this occurred? There are times when the geometry needs to be rebuilt to show the changes you have made to additive/subtractive brushes. Let me know if this works. Thank you!

avatar image 7minutesdead Apr 06 '14 at 06:15 PM

Yes I did try rebuilding geometry however the missing faces were unaffected.

Even stranger is if I copy and paste the more complex brush and move it to it's own area within the same additive brush, different faces will then be missing, but again even when I rebuild the geometry, everything stays the same.

avatar image Adam Davis STAFF Apr 06 '14 at 06:22 PM

Are you seeing a similar issue when using this in a new level with no other content? I have attempted to reproduce this with no effect thus far, can you provide reproduction steps that you are taking so I can test this on our end? Thank you!

avatar image 7minutesdead Apr 07 '14 at 01:11 AM


Here's an imgur album explaining step by step.


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

1 answer: sort voted first

Hi 7minutesdead,

The pictures you posted did the trick! I have attached this as well as my findings to a bug report so that it can be assessed. Thank you and have a great day!

more ▼

answered Apr 07 '14 at 02:40 PM

avatar image 7minutesdead Apr 07 '14 at 05:42 PM

Awesome! Thank you.

(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