An attempt to make this FXAA shader compatible with Single pass Stereo Rendering

FXAA-SPS.shader

// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'


Shader "Hidden/FXAA3" {
Properties {
	_MainTex ("Base (RGB)", 2D) = "white" {}
}
SubShader {
	Pass {
		ZTest Always Cull Off ZWrite Off
		Fog { Mode off }

		CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			#pragma fragmentoption ARB_precision_hint_fastest
			#pragma target 3.0
			#pragma glsl

			#include "UnityCG.cginc"

			#define FXAA_PC
			#define FXAA_HLSL_3
			#define FXAA_EARLY_EXIT 0
			#include "Fxaa3_9.cginc"

			uniform sampler2D _MainTex;
			uniform float4 _MainTex_TexelSize;
			uniform float4 _rcpFrame;
			uniform float4 _rcpFrameOpt;
			half4 _MainTex_ST;

			struct v2f {
				float4 pos : POSITION;
				float2 uv : TEXCOORD0;
				float4 uvAux : TEXCOORD1;
			};

			v2f vert( appdata_img v )
			{
				v2f o;
				o.pos = UnityObjectToClipPos (v.vertex);

				float2 uv = v.texcoord.xy;

				o.uv = uv;
				o.uvAux.xy = uv + float2( -_MainTex_TexelSize.x, +_MainTex_TexelSize.y ) * 0.5f;
				o.uvAux.zw = uv + float2( +_MainTex_TexelSize.x, -_MainTex_TexelSize.y ) * 0.5f;

				return o;
			}

			half4 frag (v2f i) : COLOR
			{
#if UNITY_SINGLE_PASS_STEREO
				i.uv = UnityStereoScreenSpaceUVAdjust(i.uv, _MainTex_ST);
#endif

				return FxaaPixelShader_Quality(
					i.uv,
					i.uvAux,
					_MainTex,
					_rcpFrame.xy,
					_rcpFrameOpt );
			}
		ENDCG
	}
}

Fallback off

}