150 lines
3.2 KiB
GLSL
150 lines
3.2 KiB
GLSL
// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
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Shader "UI Extensions/SoftMaskShader"
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{
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Properties
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{
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[PerRendererData] _MainTex("Sprite Texture", 2D) = "white" {}
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_Color("Tint", Color) = (1,1,1,1)
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_StencilComp("Stencil Comparison", Float) = 8
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_Stencil("Stencil ID", Float) = 0
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_StencilOp("Stencil Operation", Float) = 0
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_StencilWriteMask("Stencil Write Mask", Float) = 255
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_StencilReadMask("Stencil Read Mask", Float) = 255
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_ColorMask("Color Mask", Float) = 15
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_AlphaMask("AlphaMask - Must be Wrapped",2D) = "white"{}
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_CutOff("CutOff",Float) = 0
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[MaterialToggle]
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_HardBlend("HardBlend",Float) = 0
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_FlipAlphaMask("Flip Alpha Mask",int) = 0
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_NoOuterClip("Outer Clip",int) = 0
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}
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SubShader
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{
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Tags
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{
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"Queue" = "Transparent"
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"IgnoreProjector" = "True"
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"RenderType" = "Transparent"
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"PreviewType" = "Plane"
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"CanUseSpriteAtlas" = "True"
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}
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Stencil
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{
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Ref[_Stencil]
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Comp[_StencilComp]
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Pass[_StencilOp]
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ReadMask[_StencilReadMask]
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WriteMask[_StencilWriteMask]
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}
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LOD 0
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Cull Off
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Lighting Off
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ZWrite Off
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ZTest[unity_GUIZTestMode]
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Blend SrcAlpha OneMinusSrcAlpha
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ColorMask[_ColorMask]
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Pass
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{
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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struct appdata_t
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{
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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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};
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struct v2f
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{
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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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float2 maskTexcoord : TEXCOORD1;
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};
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inline float UnityGet2DClipping (in float2 position, in float4 clipRect)
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{
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float2 inside = step(clipRect.xy, position.xy) * step(position.xy, clipRect.zw);
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return inside.x * inside.y;
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}
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fixed4 _Color;
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fixed4 _TextureSampleAdd;
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sampler2D _MainTex;
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bool _UseAlphaClip;
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int _FlipAlphaMask = 0;
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float4 _AlphaMask_ST;
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sampler2D _AlphaMask;
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v2f vert(appdata_t IN)
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{
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v2f OUT;
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float4 wolrdPos = IN.vertex;
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OUT.maskTexcoord = TRANSFORM_TEX(wolrdPos.xy, _AlphaMask);
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OUT.vertex = UnityObjectToClipPos(IN.vertex);
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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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OUT.color = IN.color * _Color;
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return OUT;
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}
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float _CutOff;
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bool _HardBlend = false;
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bool _NoOuterClip = false;
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fixed4 frag(v2f IN) : SV_Target
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{
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half4 color = (tex2D(_MainTex, IN.texcoord) + _TextureSampleAdd) * IN.color;
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float4 inMask = float4(
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step(float2(0.0f, 0.0f), IN.maskTexcoord),
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step(IN.maskTexcoord, float2(1.0f, 1.0f)) );
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// Do we want to clip the image to the Mask Rectangle?
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if (_NoOuterClip == false && all(inMask) == false )
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{
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color.a = 0;
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}
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else // It's in the mask rectangle, so apply the alpha of the mask provided.
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{
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float a = tex2D(_AlphaMask, IN.maskTexcoord).a;
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if (a <= _CutOff)
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a = 0;
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else
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{
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if(_HardBlend)
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a = 1;
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}
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if (_FlipAlphaMask == 1)
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a = 1 - a;
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color.a *= a;
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}
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if (_UseAlphaClip)
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clip(color.a - 0.001);
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return color;
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}
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ENDCG
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}
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}
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} |