#ifndef SKELETON_GRAPHIC_NORMALPASS_INCLUDED
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#define SKELETON_GRAPHIC_NORMALPASS_INCLUDED
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#include "UnityCG.cginc"
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#include "UnityUI.cginc"
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#include "../../CGIncludes/Spine-Common.cginc"
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#pragma multi_compile __ UNITY_UI_ALPHACLIP
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struct VertexInput {
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float4 vertex : POSITION;
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float4 color : COLOR;
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float2 texcoord : TEXCOORD0;
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UNITY_VERTEX_INPUT_INSTANCE_ID
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};
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struct VertexOutput {
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float4 vertex : SV_POSITION;
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fixed4 color : COLOR;
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half2 texcoord : TEXCOORD0;
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float4 worldPosition : TEXCOORD1;
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UNITY_VERTEX_OUTPUT_STEREO
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};
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#ifndef ENABLE_GRAYSCALE
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fixed4 _Color;
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#endif
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fixed4 _TextureSampleAdd;
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float4 _ClipRect;
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#ifdef ENABLE_FILL
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float4 _FillColor;
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float _FillPhase;
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#endif
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#ifdef ENABLE_GRAYSCALE
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float _GrayPhase;
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#endif
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VertexOutput vert (VertexInput IN) {
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VertexOutput OUT;
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UNITY_SETUP_INSTANCE_ID(IN);
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UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(OUT);
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OUT.worldPosition = IN.vertex;
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OUT.vertex = UnityObjectToClipPos(OUT.worldPosition);
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OUT.texcoord = IN.texcoord;
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#ifdef UNITY_HALF_TEXEL_OFFSET
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OUT.vertex.xy += (_ScreenParams.zw-1.0) * float2(-1,1);
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#endif
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#ifdef _CANVAS_GROUP_COMPATIBLE
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half4 vertexColor = IN.color;
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// CanvasGroup alpha sets vertex color alpha, but does not premultiply it to rgb components.
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vertexColor.rgb *= vertexColor.a;
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// Unfortunately we cannot perform the TargetToGamma and PMAGammaToTarget transformations,
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// as these would be wrong with modified alpha.
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#else
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// Note: CanvasRenderer performs a GammaToTargetSpace conversion on vertex color already,
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// however incorrectly assuming straight alpha color.
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// Saturated version used to prevent numerical issues of certain low-alpha values.
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float4 vertexColor = PMAGammaToTargetSpaceSaturated(half4(TargetToGammaSpace(IN.color.rgb), IN.color.a));
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#endif
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OUT.color = vertexColor;
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#ifndef ENABLE_GRAYSCALE
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OUT.color *= float4(_Color.rgb * _Color.a, _Color.a); // Combine a PMA version of _Color with vertexColor.
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#endif
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return OUT;
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}
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sampler2D _MainTex;
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fixed4 frag (VertexOutput IN) : SV_Target
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{
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half4 texColor = tex2D(_MainTex, IN.texcoord);
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#if defined(_STRAIGHT_ALPHA_INPUT)
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texColor.rgb *= texColor.a;
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#endif
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half4 color = (texColor + _TextureSampleAdd) * IN.color;
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color *= UnityGet2DClipping(IN.worldPosition.xy, _ClipRect);
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#ifdef UNITY_UI_ALPHACLIP
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clip (color.a - 0.001);
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#endif
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#ifdef ENABLE_FILL
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color.rgb = lerp(color.rgb, (_FillColor.rgb * color.a), _FillPhase); // make sure to PMA _FillColor.
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#endif
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#ifdef ENABLE_GRAYSCALE
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color.rgb = lerp(color.rgb, dot(color.rgb, float3(0.3, 0.59, 0.11)), _GrayPhase);
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#endif
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return color;
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}
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#endif
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