My Fade Post Processing effect doesn't work in 5.6

I had a fade effect on my camera to fade in/out. When I was in Unity 5.5 it worked fine, but now that I upgraded to 5.6 it no longer works. Was something changed with how post processing works now?

Here is the code I am using:


public class Fade : MonoBehaviour
{

[SerializeField]
private Color _colour = Color.white;

[SerializeField]
[Range(0, 10)]
private float _fadeSpeed;

[SerializeField]
[Range(0, 1)]
private float _alpha;

[SerializeField]
private Material _material;

private void OnRenderImage(RenderTexture source, RenderTexture destination)
{
_material.SetColor("_Color", _colour);
_material.SetFloat("_Alpha", _alpha);
Graphics.Blit(source, destination, _material);
}

}


Shader "Post Processing/Fade"
{
Properties{
_Color("Color", Color) = (1,1,1,1)
_MainTex("Texture", 2D) = "white" { }
_Alpha("Alpha", Range(0,1)) = 1
}
SubShader{
LOD 200
Tags
{
//"Queue" = "Transparent"
//"RenderType" = "Transparent"
}

Pass{
Blend SrcAlpha OneMinusSrcAlpha


CGPROGRAM
#pragma vertex vert
#pragma fragment frag

#include "UnityCG.cginc"

float4 _Color;
sampler2D _MainTex;
float _Alpha;

struct v2f {
float4 pos : SV_POSITION;
float2 uv : TEXCOORD0;
};

float4 _MainTex_ST;

v2f vert(appdata_base v)
{
v2f o;
o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
o.uv = TRANSFORM_TEX(v.texcoord, _MainTex);
return o;
}

half4 frag(v2f i) : COLOR
{
half4 texcol = tex2D(_MainTex, i.uv);

texcol = half4(_Color.rgb, _Alpha);
//texcol.rgb = dot(texcol.rgb, float3(0.3, 0.59, 0.11));

return texcol;
}
ENDCG

}
}
Fallback "Diffuse"
}

 

Use code tags.

 

I think you need to review the fragment shader logic.