Constant compiling and recompiling when play testing

Community Community & Industry Discussion
1

Why on Earth does this engine have to recompile the same level again when you have already compiled the level?

Every time i finish compiling i want to play test my game but it ends up recompiling the same level again.

2

Same here, i was able to achieve so much with ue4 in the last few weeks. The blueprint method and free access to the complete engine made me really excited about this engine, but the compiling shader, is really driving me away from it. Im trying to paint the terrain but every click i make, drives the shader crazy. Its starting to crash and its slow.
What can i do? Thanks

3

Just to be clear, by compiling, you both mean shaders?

4

I mean shaders, not sure about the other member.
Does texture size have an impact on this? Im using 1024x1024 sized textures? Is this an overkill?

5

Same feeling but with this constant Compiling its just driving me crazy and its real annoying at times it just randomly recompiles something and I cant figure out why even if that thing was already compiled.

6

It compiles EVERYTHING as in the whole entire level and then when its “DONE” I play test and everything in that level has to be recompiled again…

7

Yeah it annoys

8

@dekilana use the search function (see above) and you should find various posts on the forum and answerhub about the same thing.
I believe the general advice is to clear out your DDC (DerivedDataCache).
For UE4 Binary Builds, you can use this path in Windows explorer to get to it quickly:



%LOCALAPPDATA%\UnrealEngine\Common\DerivedDataCache

Failing that, you also try taking out your projects /Saved and /Intermediate directories to see if that clears it up.

Ok, I better try again.

When you say everything, that makes me think of shaders, Blueprints and C++… which would obviously be silly and should never happen.
Given that it can take a hour or more for some people to compile the C++ of the engine, I doubt you actually mean everything.
A number of people - including myself - have had our UE4 project start compiling its shaders all the time for no particular reason.
I know it will attempt to compile various Blueprints at runtime, but that should happen very quickly.
Your C++ should never be compiled unless you tell it to be.

9

There is no need to try again you read and herd me the entire LEVEL I never said about Blueprints im referring to the level and it just loves to do it when I use the engine the next time it magically compiles something in it at times too.

I dont recall it doing this as much but one thing is for sure in previous versions this was hardly a issue.

10

Guess I should have added a smiley face after the “I better try again” part :stuck_out_tongue:

Wasn’t having a go at anyone, I was simply trying to understand what you meant by compile.

  • C++ and Blueprints need to be compiled.
  • Shaders need to be compiled.
  • Lighting needs to be built.
  • Navigation meshes need to be generated.
  • Mesh Distance Fields need to be generated.

So you see, when you say you have “already compiled the level”, I don’t get it, as you don’t compile levels :expressionless: