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ashea-code / BLUI

Rich HTML UI engine for UE4
MIT License
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FPS Issues #23

Closed ashea-code closed 9 years ago

ashea-code commented 9 years ago

paulv2k4 experiences performance drops on large maps using the ExampleHUD. Currently unsure of the cause.

Quote from his forum post:

Ok, so I did some testing and came to some rough conclusions.

It seems this only works properly on a blank map and being run in a standalone process, in the editor window or (probably best) in a packaged game. Any other instance like "new editor window" drops the fps by at least 20 fps (in certain this is Slate/UMG issue). Put that with any decent size/complex map and your fps will soon become 10-20fps. (unchecking "use single process", does not seem to improve this)

Also there is substantial fps dips occurring every 1-3 seconds bringing the fps down another 5-15fps, which is a little odd.

There seems to be a slight 0.5s - 1.5s pause between a mouse click/hover/interaction and the page actually doing something.

In that case I can not see this usable as a HUD but Menu UI will be fine as long as you keep the 3D background small (which games tend not to do anymore).

I do know that Slate (UMG) is incredibly slow too which could be hindering the process (the profiler proves this). This made me wonder whether I should put this on a plane to see if it improves things.

My concern is that if you were to ship the game and someone with a much worse CPU/GPU were using it, they would notice a more significant performance drop.

ashea-code commented 9 years ago

Hopefully this issue is somewhat resolved with pull #28

ashea-code commented 9 years ago

Performance was improved a bit more with commit 54e7fdfbaf9f39a76ec04706105efe171b2cee10 Waiting to hear feedback from users about this

paulov-t commented 9 years ago

Hi there,

saw this and thought I should say this commit did not solve this issue.

paulv2k4

IstoraMandiri commented 9 years ago

Anyone have the link to the forum post?

ashea-code commented 9 years ago

@hitchcott https://forums.unrealengine.com/showthread.php?58192-PLUGIN-BLUI-Open-Source-HTML5-JS-CSS-HUD-UI&p=264359&viewfull=1#post264359

IstoraMandiri commented 9 years ago

Thanks!

cthulhusec commented 9 years ago

The last few commits appear to have greatly improved FPS and general responsiveness, at least during my testing. (Rendering translucent material on a plane, CPURenderSettings false, UE4 4.7.6 Custom, Windows 7 64)

ashea-code commented 9 years ago

Seems I can finally close this issue!

https://forums.unrealengine.com/showthread.php?58192-BLUI-Open-Source-HTML5-JS-CSS-HUD-UI&p=307255&viewfull=1#post307255

Thanks for the reports everyone!