Optimisation and frame rate | Godot Café | Page 1

rustic crow Jul 17, 2024, 10:09 AM

#

Im working on a very low poly game with almost zero shape movement.
I use a 2021 iMac with 8gigs of ram and an M1 chip.

Picture 1: I made the logic of the game and ran it like this, in windowed mode. The only thing that really moves is the camera3D. when i move that, i get around 60fps. If i fullscreen the game, my fps goes down to 30.
Picture 2: i wanted to now work on making the game look better. I added fog and other environmental changes, but now in windowed mode i get 30fps, and fullscreen is at 10fps or worse, and my computer starts overheating.

Now i understand that adding fog and other such changes would definitely slow the game, but i dont get why it should be this slow. Even without the fog, getting 30fps when absolutely nothing is happening is quite sad. Would any of you know how i could fix this?

loud tangle Jul 17, 2024, 10:16 AM

#

have you played any other games? what was your fps like there? Because 8gb ram is quite.. mid..

rustic crow Jul 17, 2024, 10:16 AM

#

lol yeah i agree my ram isnt the best but the only game ive played is minecraft

#

i average 60fps there with a lot of optimization mods

#

if i play without optimization my cpu becomes a frying pan unless i lower fps down to 30

#

but yk id expect minecraft to be more cpu heavy with all that rendering

#

the game im making is barely anything

loud tangle Jul 17, 2024, 10:18 AM

#

ya

loud tangle Jul 17, 2024, 11:09 AM

#

do you have a lot of _process() code?

rustic crow Jul 17, 2024, 11:56 AM

#

zero actually

#

my code isnt even that heavy

#

i have about 11 gd files

#

two of which are global variables and global signals

#

and all of them average to about 40 lines of code

loud tangle Jul 17, 2024, 11:58 AM

#

11 gd files with 40 lines each?

rustic crow Jul 17, 2024, 11:58 AM

#

no no averaged

#

like

#

one has just 5 lines

#

another has 78 lines

#

another has 10 lines

#

average of all that = ~ 40

loud tangle Jul 17, 2024, 1:42 PM

#

i see

#

in your code, apart from _process(), is there anything that keeps updating?

tender marlin Jul 17, 2024, 1:46 PM

#

this seems like a GPU bottleneck by your statement that said: "when windowed is 60fps, when fullscreen is 30fps"

#

Try a few things:

run in compatibility mode (it uses opengl instead of vulkan, if your notebook doesnt support vulkan properly, it can be very slow)
remove shadows
draw less, put your camera angle mostly looking down, fewer meshes showing on camera, fewer drawcalls

#

check: https://docs.godotengine.org/en/latest/tutorials/performance/gpu_optimization.html

Godot Engine documentation

GPU optimization

Introduction: The demand for new graphics features and progress almost guarantees that you will encounter graphics bottlenecks. Some of these can be on the CPU side, for instance in calculations in...

#

https://docs.godotengine.org/en/latest/tutorials/performance/using_multimesh.html

Godot Engine documentation

Optimization using MultiMeshes

For large amount of instances (in the thousands), that need to be constantly processed (and certain amount of control needs to be retained), using servers directly is the recommended optimization. ...

rustic crow Jul 17, 2024, 1:54 PM

#

tender marlin Try a few things: - run in compatibility mode (it uses opengl instead of vulkan,...

thank you so much for all of this! I'll go through the links thoroughly, but, i tried running the game in compatibility mode before any of that

#

and..

#

i get like 60+ frames in windowed mode AND fullscreen, so thats a win