version 2.0.0

com.htc.upm.vive.openxr/Runtime/CompositionLayer/Resources/Shaders/Texture2DBlitShader.shader

@@ -0,0 +1,89 @@
+// "VIVE SDK 
+// © 2020 HTC Corporation. All Rights Reserved.
+//
+// Unless otherwise required by copyright law and practice,
+// upon the execution of HTC SDK license agreement,
+// HTC grants you access to and use of the VIVE SDK(s).
+// You shall fully comply with all of HTC’s SDK license agreement terms and
+// conditions signed by you and all SDK and API requirements,
+// specifications, and documentation provided by HTC to You."
+
+Shader "VIVE/OpenXR/CompositionLayer/Texture2DBlitShader"
+{
+    Properties
+    {
+        _MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}
+    }
+    SubShader
+    {
+		Tags {"Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Transparent"}
+
+		ZWrite Off
+		ColorMask RGBA
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+
+			#pragma multi_compile_local _ LINEAR_TO_SRGB_COLOR
+			#pragma multi_compile_local _ LINEAR_TO_SRGB_ALPHA
+
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uv : TEXCOORD0;
+            };
+
+            struct v2f
+            {
+                float2 uv : TEXCOORD0;
+                float4 vertex : SV_POSITION;
+            };
+
+            sampler2D _MainTex;
+			int _LinearColorSpaceConversionNeeded;
+            float4 _MainTex_ST;
+
+            v2f vert (appdata v)
+            {
+                v2f o;
+                o.vertex = UnityObjectToClipPos(v.vertex);
+                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+                
+                #if UNITY_UV_STARTS_AT_TOP
+                o.uv.y = 1.0 - o.uv.y;
+                #endif
+                
+                return o;
+            }
+
+            fixed4 frag (v2f i) : SV_Target
+            {
+                // sample the texture
+                fixed4 col = tex2D(_MainTex, i.uv);
+				
+				//Linear to sRGB approximation 
+				#ifdef LINEAR_TO_SRGB_COLOR
+				float3 S1c = sqrt(col.rgb);
+				float3 S2c = sqrt(S1c);
+				float3 S3c = sqrt(S2c);
+				col.rgb = 0.662002687 * S1c + 0.684122060 * S2c - 0.323583601 * S3c - 0.0225411470 * col.rgb;
+				#endif
+
+				#ifdef LINEAR_TO_SRGB_ALPHA
+				float S1a = sqrt(col.a);
+				float S2a = sqrt(S1a);
+				float S3a = sqrt(S2a);
+				col.a = 0.662002687 * S1a + 0.684122060 * S2a - 0.323583601 * S3a - 0.0225411470 * col.a;
+				#endif
+
+                return col;
+            }
+            ENDCG
+        }
+    }
+}