Text Mesh Pro in Custom Screen Space

UI TextMesh Pro
1

I wan to build custom UI which is not based on Unity default UI. This is because Unity’s Canvas batching is VERY slow. For this purpose I need to devise a way to transform text and images from model/world space into camera/screen space. AFAIK in Unity UI “camera space” is the same as “screen space”. I want to simulate behavior of Unity camera/screen space UI using my own code.

The problem is as follows: I have Text Mesh Pro object setup with font of given size and all transforms set to zero. I want to place that object into screen space. Simulating Unity UI screen space, it should place the middle of the textbox at the bottom left corner of the screen, IIRC.

2

Apparently the key is to use correctly Camera.ScreenToWorldPoint call.

3

Is it? I wonder why it’s slow, are you doing lots of panels with moving bits or using pixel perfect option?

4

Pixel perfect is off. I’m drawing a wall of text in my development console. It consists of dozens of UI Text and possibly UI Image objects for icons. For pure text this console eats up 10% of my fps. With icons it’s even worse: 20%+ of fps. Icons are atlased. Since this panel is very static in screen space I think it’s batching.