How do I get a HUD in a single draw call?

Unity Engine
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1

Hi there.

I am currently working on an iPhone game and am currently learning about optimizations i need to bring in order for it to work.

My project should contain the 2 control joysticks, 4 to 8 click-able icons, the high score area, lives, and ammo info.
The problem is I get way to many draw calls for this.
Is there a way to get my HUD in 1 or 2 draw calls, one for static stuff (images) and 1 for dynamic stuff (labels)?
What options do I have for the desired result?

Thanks,
Cristi

2

There are a number of third party plug-ins that will do this. I recommend SpriteManager 2 but there are some others out there too, some of which are free.

3

Thanks for the Info, but from what I see, SM2 is designed for animations, not for the GUI. Isn’t there a build in solution in unity for such a feature. I would expect it not to be that difficult for GuiTextures to be able to work with a Texture Atlas. I already find it strange that 2 GuiTextures with the same base texture, use up 2 draw calls.

4

Here is your holy Grail : Click me.

(it works, I just tested it)