Writing custom depth in shader

Unity Engine
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1

Hey there,

I’m trying to write custom depth in a variant of the lit shader (I’m doing sphere impostors)

It seems the available starting points are posInput.linearDepth and posInput.deviceDepth, and the expectation for SV_Depth seems to be deviceDepth.

Is there a built in function to convert from linearDepth to deviceDepth?

Thanks

2

Found the solution, which is actually using the ApplyDepthOffsetPositionInput function (which is in Common.hlsl), which recalcs the position and hence the depth as a byproduct of that. It needs to be enabled with Pixel Displacement On in the material (which wraps _DEPTHOFFSET_ON).

This should go before GetSurfaceAndBuiltinData

ApplyDepthOffsetPositionInput(vecViewForwardDir, radius * normalSS.z, GetViewForwardDir(), UNITY_MATRIX_VP, posInput);

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