Trying to optimize my Drawing Game, I need help.

[hoary narwhal]

Im trying to make a roblox drawing game, all of the features are pretty much implemented, but the server gets overloaded so easily from all the parts that is generated to make up the strokes. Im not sure if it is due to my code in the server, the parts themselves taking up space on the server or what, but around 60k parts it becomes almost unplayable when Spray Paint can easily have over 300k with no problems. So I guess Im wondering how do I achieve performance like this with a part based system? Does spray paint use decals instead or something else? Any help is appreciated. I can't really post all my code in here because its thousands of lines at this point but if you want to see a snippet just ask.

[brave idol]

most likely decals

it depends if you have code looping through all of the parts

that would cause lag

consider learning how to read and use the microprofiler

[hoary narwhal]

yes I do use a lot of for loops. So you are saying the parts themselves are not the problem, but since the total amount of parts accumulates, the for loops running through them are taking longer and longer thus leading to poor performance?

and i will look into the microprofiler

[brave idol]

e.g if you are checking ALL parts every time a new part is created for some reason, i.e check limits, distance check, or doing something every frame for all of them, yep that's a recipe for lag. parts on their own don't cause cpu lag, they just consume memory.

spatial query like raycast is better at the scale of 10k's+

[hoary narwhal]

hmm the way my code is set up is that whenever a player draws, they only create new parts per brush stroke, they dont loop through all of the already existing parts, yet when a player has over 100k parts for their drawing, it is definitely a lot less responsive

the server kinda lags a lot, but I will look into it and see if a for loop is getting called where it shouldnt be

[brave idol]

how are you even hitting 100k

that's a lot of parts

for one person? wtf

[ember gyro]

very detailed drawing game

😏

[brave idol]

i'd expect 100k to be the total for like 30 people, not 1

[hoary narwhal]

one of the tools is a spray can, generates a dot for every pixel

every line takes a lotta parts

but spray paint handles 300k with no problem, but mine dies at like 100k

im definitely gonna put a part limit on players, but I want it to be able to handle 200-300k total in the server without slowing down too noticeably

[cold wave]

** You are now Level 1! **

[ember gyro]

i swear i saw smhtn about editable decals in roblox studio

ima check it out and see if I am remembering correclty

ill come back

https://devforum.roblox.com/t/studio-beta-in-experience-build-a-texture-editableimage-support-for-surfaceappearance/3866947/1

[hoary narwhal]

that sounds interesting

[ember gyro]

i was wrong

sadly

[hoary narwhal]

ah

[ember gyro]

my bad homie

[hoary narwhal]

youre good

im just tryna get this optimized without converting everything into mesh

currently tinkering with the microprofiler

im not seeing anything on the microprofiler. It seems like this is for frame rate issues. The issues im having are frame rate related, its more just reduced responsiveness. Like the server just takes longer to respond. Unless im wrong?

[brave idol]

dont forget to check it from server perspective in studio

but yea its more for cpu lag

[ember gyro]

wouldnt it be better to just replicate everything on the client

[brave idol]

i think there's memory tools in it too

[ember gyro]

how would u go about doing this pyro

[brave idol]

reducing the need for 100k parts for one person is probably first thing i would do

[ember gyro]

true

[brave idol]

making the pixels a bit bigger

editablemesh/editableimage is probably best way tho

[hoary narwhal]

I think I figured it out

the microprofiler showed me that a streaming solver v2 was taking 80 ms to run, so I disabled it streaming enabled and now it runs perfect

theres no way that was it

[hoary narwhal]

you wouldnt understand unless you played the game, there is a need unfortunalely

[brave idol]

would be simple to understand with a screenshot showing 100k parts

[hoary narwhal]

hold up, I got you

this whole thing is a canvas for players to draw on as they please

what you see rn is about 10k parts

the other tools are a lot more optimized

[brave idol]

i'd still suggest making those parts slightly larger

anyway i'd suggest reduce your min streaming radius

and again make sure nothing looping over all parts, make sure they're all anchored etc

and make sure you aren't spawning duplicates

[hoary narwhal]

yeah, every attribute that can affect performance is disabled and set to false, and the parts themselves are controlled with a slider, so they can make the parts bigger or smaller if they choose. And disabling streaming enabled seems to have completely fixed my server lag...

[cold wave]

** You are now Level 2! **

[hoary narwhal]

even though its only a client side thing

[brave idol]

some performance affecting things will do more work when disabled or false

i would suggest you keep instance streaming on

[hoary narwhal]

oh really?

[brave idol]

yes, such as instance streaming

[hoary narwhal]

yes I have instance streaming still on

i just disabled shadows, made the material smooth plastic, made them anchored

[brave idol]

namely turning it off will make mobile phones pain when trying to run this

keeping it on shouldn't have much cpu cost on server

[hoary narwhal]

oh streaming enabled?

idk its being weird

as soon as I disabled it my game is now running perfectly

but its not really intended for phones in the first place, maybe ipads though

[brave idol]

tbh nothing stopping you making this entirely clientsided

bit of work to do it but, it's plausible

idk up to you

[hoary narwhal]

if I do everything client side then it wont appear for other players

its supposed to be a community thing