Shader / Material with "unlimited" textures / layers (splatmap?)

Question

I would like to know if it's possible to have a shader / splat map to which an unlimited number of textures can be added, like the one that the Unity Terrain object uses.

So far, all my research has brought up are shaders that hold up to 5 different textures (RGBA, R, G, B, A). I'm not asking for any code, just if someone has any ideas if something like this exists, is possible or even knows how to approach such a shader.

Answer 1

Best Answer

Answer by tanoshimi · May 26, 2014 at 09:13 PM

Sure - subject to the limits of your GPU - you can have a shader with (theoretically) as many texture lookups as you want. I used 8 in a scientific visualisation app I made. But for performance reasons you generally want to keep that value lower.

Add comment · Show 2 · Share

Cherno · May 26, 2014 at 09:35 PM 0

Share

Thank you. Are you using some kind of custom channels? How is the visibility/strength (for lack of a better word) of each texture determined?

tanoshimi · May 26, 2014 at 09:41 PM 0

Share

It's a series of data readings encoded as the RGBA values. So, each texture can hold 4 series, 8 textures = 32 series. They're aggregated in a fairly complicated and very application-specific way to determine the actual pixel colour value displayed.

Shader / Material with "unlimited" textures / layers (splatmap?)

1 Reply

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions