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"

Improving shader compile times for profiling

Hi there!

We're a small indie house working on a mobile VR game, using UE 4.18.3. Shader compile times can be very long even on grunty workstations, which makes debugging and profiling very frustrating.

A full shader recompile on an empty project compiles 4000+ shaders and can take up to 10mins. Switching 'Preview Rendering Level' to lets say Android does a full recompile. Deploying to the device does a full recompile. Once those compiles are done it's all good, but as soon as you do switch certain flags (eg mobile HDR on/off), the engine requires 3 full recompiles again (Editor, Preview Level, Deploy). So, switching certain flags on and off to profile the difference can take 30+mins on an empty project, or 1+h on the actual project.

  • Is there a way to improve compile times?

  • Can compiling shaders be network distributed? All our workstations are hardware/software identical.

  • Can the resulting compiles be shared on the network, to avoid that every workstation/user has to go through the compiling again individually?

Any advice is much appreciated! Cheers, Max

Product Version: UE 4.18
more ▼

asked Feb 21 '18 at 11:20 PM in Using UE4

avatar image

16 1 2 5

(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