Large render texture alternative

News & General Discussion
1

Hi there.
In our game we have a feature that lets users draw on the map. I have implemented this as a render texture from a camera with no clear flags and it is working very well.

The only issue is that in order to cover enough area I need to make the render texture so big that it looses all of its clarity, I can’t increase the resolution anymore as it seems to be causing performance issues (game runs on webgl)

The only solution I can think of now is dividing the area into a bunch of separate render textures for each section of the map. I’ve done some testing and it looks like this approach will fix the performance issues. I’m just wondering if this is the best case I can do? I need them to be textures because I also have to save the entire drawing/drawings and sync them over our third party multiplayer network. Any feedback is appreciated thanks.

2

I was going to suggest a tiling solution. I think you should go with it as it would seem to have benefits beyond performance…

3

Yes. It is probably the best approach.

4

What type of drawing are they doing? Can you store the primitives (ie: a list of points) and draw them using some other method - line renderer, create a mesh, etc.?

5

Yeah I was going to suggest the saving points and using line renderer as well, if that is the kind of thing being drawn.