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"

Excluding part of material and post process volume from underwater effects created by a tube?

Hi all, I would like to know the principles of how to exclude part of a mesh being rendered if it is contained within another mesh during game play. An example is a tunnel going underwater. The water volume has a water surface and underside, and a complementary post-process volume to render the fuzziness of being underwater. If I were to place a tunnel under the water to walk through it much akin to an aquarium, I would like the water (underside) and post process volume to be suppressed whilst inside the tunnel, but still work when peering out the windows of the tunnel to marvel at the underwater environment.

I could propose an idea that a copy of the tube that one could walk through to serve as the 'bounds' for which other objects (the post process volume and the underside of the water) are not drawn at all. I am still yet to get up to speed with terms such as Stencil buffer, Depth Buffer, this and that buffer.

What would be considered the best approach to generally taking a reference mesh and using that to exclude an array of other actors from being rendered if said actors stray inside the reference mesh? Are there any gotchas that need to be thought of beforehand?

Many thanks all for your assistance.

Christian Kanakis

Product Version: UE 4.13
Tags:
more ▼

asked Oct 29 '16 at 11:37 AM in Using UE4

avatar image

Cyberconian
1 2 3

(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