Its possible to fix the Ztest Zwrite in alphaBlend ?

[resetme]

Im making a transparent shader but im having problems with the Zwrite, Ztest.

Even the default unity Mobile Particle Alpha Blend have the same issue, so if Unity can not solve its impossible for me as well?

This is the issue, when i move the plane far from the camera it render behind the other plane even if is in top of it.

http://www.franfndz.com/share/AlphaBlendUnity.mp4

[bgolus]

Render Mode - Transparent doesn't work see video

Zwrite & Ztest are z buffer / depth operations for sorting with or against opaque geometry. It can be abused to prevent transparent objects from rendering overlapping parts entirely. It cannot help with transparency sorting. For that you need to either handle the rendering order manually using render queue, sorting order, or abuse particle systems’ sorting fudge.

The other option would be an order independent transparency approximation, which is kind of overkill.

Is it possible to fix the Transparency + Depth sorting issue?

Order Independent Transparency (OIT) is the search term you're looking for. To do accurate per pixel transparency sorting is extremely expensive to do on modern graphics cards, though it is possible. To do it in Unity would require essentially not using any of Unity's built in shaders, and possible not use any of Unity's built in renderer components. Pretty much no one does this outside of some tech demos and specific applications, these days it's probably cheaper to "just" do GPU based raytra…