Scene sizes are too big

On hard drive in windows explorer scne files occupy around 80mb. in zip archieve - 5 mb.
But if i compile into apk with LZ4HC compression size is even bigger. what's up ?

how can i find out what consumes so much space ?

 

Lz4hc always has big sizes. I recommend using regular compression.

 

sometimes it helps to copy paste gameobjects from scene A into new scene B and suddenly new scene size is smaller..
(not sure whats the reason, but has happened several times for me, so worth to try if scene size is issue..)

 

but there're 10 scenes ) i don't know what exact one causes trouble

 

almost same result with lz4

 

can see in windows explorer, the scene sizes, if some of them are much bigger than others?

i think using prefabs also reduced scene sizes.

 

all scenes consist out of prefabs

i really can't understand what consumes so much space...

 

Prefabs only exist within the context of the editor. When you make a build every prefab in a scene is unpacked into its respective game objects and saved along with all of its parameters. You're not making a game smaller by using them. You're just making your life easier within the editor.

 

So is there any way to determine what consumes so much space ? with 100mb levels i can'r really add anything more...

 

Build logs?

 

they don't tell you what is inside scene files
In fact i found one problem. PolyBrush script components left in prefabs were heavy. No my levels are 65mb instead of 100. But there's still smth else...

 

That's probably just unity

 

I found the reason. I used Poly Brush to draw vertexes for some fancy shader - and looks like this data stayed in the wring places... still thinking how to fix it though