UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Create account

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Create account

Language

Question by adbourdages · Dec 10, 2012 at 06:11 PM · texture memory profiler

Why does my 4Meg texture cause an increase of 8Meg in texture memory?

There's is a lot of info, so let me describe the problem succinctly:

It is on Android, on device.
The game is in state A, and take 28Meg of texture memory (reported by the profiler, graphics tab: Textures: 20 / 28.2M)
I add a scene by LoadLevelAdditiveAsync.
That scene uses a single texture (as per the stat screen in the editor when running that scene standalone)
The new scene texture is RGBA 16bit, 1024x2048, so 4 MB in size
Once the scene is added, the profiler reports Textures: 22 / 36M.

Why is there an increase of 8M in texture memory? Let me provide some more background info:

All the textures are NOT read/write enabled
There's not even 20 textures in the game, so where does the 20, 22 come from in Textures? I don't know.
The new scene I add is using NGUI, if that is relevant
This happens on various android devices, not just a single one. (Galaxy Tab 10.1, HTC Desire)
It is a 2D game built with NGUI / EZSpriteManager

Add comment