Decal shader only work at certain camera sizes

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Decal shader only work at certain camera sizes

Sharde

Hi everyone!

I'm trying to apply decals in 3.5 by using the DecalCo shader, but I'm running into an issue where the decals disappear on an orthographic camera on certain camera sizes. The points at which they disappear seem to be tied to the far culling boundary of the camera, there is a very narrow band in which they work. Some images below illustrate my issue:

Works at some camera sizes:

Fails at others:

I'm very new at shaders, but I'm trying my best to troubleshoot it - I'm "printing" the variables out in ALBEDO and they all seem fairly consistent at various camera sizes until being multiplied by INV_PROJECTION_MATRIX. I'm guessing the inverse projection matrix doesn't scale to larger camera sizes? But that's as far as I've got.

Please help. 🙁