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Question by $$anonymous$$ · May 29, 2018 at 12:56 AM · shadershaderscg

Shader - UNITY_SAMPLE_DEPTH function

I've been trying to find more info on this build in shader function "UNITY_SAMPLE_DEPTH" but internet behaves as if this function never existed, not even Unity themselves dont document this function...

- The input params
- The output value, its type and what it actually contains

I would be grateful to anyone who can shine more light onto this misterious fucntionfor me.

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Answer by $$anonymous$$ · Jun 03, 2018 at 11:47 AM

Okey seems like function UNITY_SAMPLE_DEPTH is not even needed. Just use tex2Dproj or tex2D with NDC coordinates and then LinearEyeDepth function to transform non linear depth data to linear scale that's it :)

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Answer by zergnick · May 29, 2018 at 02:39 AM

 float depth = UNITY_SAMPLE_DEPTH(tex2D(_CameraDepthTexture, uv));

I don't know much about shader, and I hope this may help you.

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avatar image $$anonymous$$ · May 29, 2018 at 12:09 PM 0
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Today I've found the example of :

float depth = UNITY_SA$$anonymous$$PLE_DEPTH(tex2Dproj(_CameraDepthTexture, uv));

where they use tex2Dproj ins$$anonymous$$d of tex2D you have shown. Which one should be used and when?

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