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"shader not supported" error with hololens

edited May 2017 in Questions And Answers

The following shader is working with unity but is "not supported" when I run it on the HoloLens emulator. I can't find the reason for this error... Any help is greatly appreciated.

Shader "Custom/RenderDepth"
        _MainTex("Base (RGB)", 2D) = "white" {}
    _DepthLevel("Depth Level", Range(0, 1)) = 1

#pragma vertex vert 
#pragma fragment frag 
# include "UnityCG.cginc"

        uniform sampler2D _MainTex;
    uniform sampler2D _CameraDepthTexture;
    uniform fixed _DepthLevel;
    uniform half4 _MainTex_TexelSize;

    struct input

        float4 pos : POSITION;
        half2 uv : TEXCOORD0;

    struct output
        float4 pos : SV_POSITION;
        half2 uv : TEXCOORD0;

    output vert(input i)
        output o;
        o.pos = mul(UNITY_MATRIX_MVP, i.pos);
        o.uv = MultiplyUV(UNITY_MATRIX_TEXTURE0, i.uv);
        if (_MainTex_TexelSize.y < 0) //Needs to be done because the 0 position is different in Direct3D-like and OpenGL-like
            o.uv.y = 1 - o.uv.y;

        return o;

    fixed4 frag(output o) : COLOR
        float depth = UNITY_SAMPLE_DEPTH(tex2D(_CameraDepthTexture, o.uv));
    depth = pow(Linear01Depth(depth), _DepthLevel);
    return depth;

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