[4.18] Crashes after 2min when SpawnActor C++

Development Programming & Scripting C++
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1

Hello,

I am quite new to C++ and Unreal in general, I am following some c++ tutorial on Udemy but my hunger to go faster is too big.

I am trying to create a map tile generator: Giving a map size, I want to spawn cubes next to each other.

So far I managed to spawn my cubes in my world by:

  • Creating a MapGenerator_BP
  • Few TilesActors (So far it contains only a static mesh cube)

Then on the C++ side of my MapGenerator class, I am spawning my TilesActors.
All of this is working quite fine
(see image on a 50x50 map)

223065-mapgen-50-50.png
223065-mapgen-50-50.png816×468 172 KB

The issue I have is that after few moment, the engine crashes without giving me errors.

Does somebody have any ideas why?
(I was thinking that because I am spawning too many actors (50*50 = 2500) maybe my computer gets crazy and crashes but I doubt since I don’t think it is a huge number of actor)

Or maybe you have a better suggestion about how to process to create this kind of map with better performance!

2

It could be garbage collector. Did You use uproperties properly? It’s rather hard to guess without knowing Your code. The number of actors is totally ok.
For better performance, i would suggest using InstancedStaticMeshComponent, instead.

3

That’s interesting. We moved our project, which is almost a year old, developed by 10 people from 4.16 to 4.18 without problems. The most problematic thing is a minor bug with blueprint nativization in one weird case.

4

I think 4.18 is the worst version released so far after 3.17. mirror reflections crash, along with everything I needed… no code error I made a project for every single one to test it and they crash all the time. I just don’t rely on 4.18, and restarted my projects. it was basicly a “F*** this sh*t I’m out”. for that low poly dzarafata is right thought.