Free Alpha to Coverage shader ?

Unity Engine
1

Hi,

Is there anyone who knows where to get a Alpha to Coverage shader for unity ?

Or help me to write one because shader writing is not really my thing.

Thanks!

2

I think you can still turn it on with AlphaToMask True. I’m not sure what the limitations are, though, or whether that even works any more or ever worked.

3

Bear in mind it requires anti-aliasing to be on (if it even works).

You get an extra level of alpha blend for each level of anti-aliasing you apply.

4

Yeah, Alpha to Coverage is strictly a feature of anti-aliasing. There are shaders which try to achieve similar results using alpha blending and testing together in separate passes, but these are traditional rendering methods that do not rely on anti-aliasing or hardware support.

5

Where do i need to put the AlphaToMask true ?

in the subshader or in the pass ?

I tried both of them and nothing happened i didn’t got the dots on the chainlink fences nor the leaves even with 8x MSAA on.

What to do now ?

6

It might simply not be possible in Unity.

7

Could be

8

I just found that alpha to coverage an dx10 technique is and it doesn’t work in dx9.

Does unity maybe uses dx9 for the renderer ?
if it is build on dx10 then there may not be a problem because my graphicscard supports dx10 and dx10.1