ECM2

2025-05-16 23:31:59 +08:00
parent 9e4fef3f1e
commit d891e3f0ee
1198 changed files with 274242 additions and 1558 deletions
--- a/Assets/RapidIcon/Shaders/PostProcessing/Underlay.shader
+++ b/Assets/RapidIcon/Shaders/PostProcessing/Underlay.shader
@@ -0,0 +1,112 @@
+Shader "RapidIcon/PostProcessing/Underlay"
+{
+    Properties
+    {
+		[NoScaleOffset]
+		_MainTex("Tex", 2D) = "black" {}
+		[NoScaleOffset]
+		_UnderlayTex("Underlay Image", 2D) = "black" {}
+		
+		[Toggle]
+		_MatchAspect("Match Image Aspect Ratio", Int) = 1
+		_Scale("Scale", Float) = 1
+		_OffsetX("X Offset", Float) = 0
+		_OffsetY("Y Offset", Float) = 0
+    }
+    SubShader
+    {
+		Blend One OneMinusSrcAlpha
+
+        Pass
+        {
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+
+            #include "UnityCG.cginc"
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                float2 uvMain : TEXCOORD0;
+				float2 uvUnderlay : TEXCOORD1;
+            };
+
+            struct v2f
+            {
+				float2 uvMain : TEXCOORD0;
+				float2 uvUnderlay : TEXCOORD1;
+                float4 vertex : SV_POSITION;
+            };
+
+			float4 _MainTex_TexelSize;
+			float4 _UnderlayTex_TexelSize;
+			int _MatchAspect;
+			float _Scale;
+			float _OffsetX;
+			float _OffsetY;
+
+            v2f vert(appdata v)
+            {
+                v2f o;
+                o.vertex = UnityObjectToClipPos(v.vertex);
+				o.uvMain = v.uvMain;
+				o.uvUnderlay = v.uvUnderlay;
+				
+				o.uvUnderlay.x -= _OffsetX;
+				o.uvUnderlay.y -= _OffsetY;
+
+				o.uvUnderlay = (o.uvUnderlay - 0.5) / _Scale + 0.5;
+				
+				if (_UnderlayTex_TexelSize.z > _UnderlayTex_TexelSize.w)
+				{
+					float aspectScale = _UnderlayTex_TexelSize.x / _UnderlayTex_TexelSize.y;
+					o.uvUnderlay.y = (o.uvUnderlay.y - 0.5) / aspectScale + 0.5;
+				}
+				else
+				{
+					float aspectScale = _UnderlayTex_TexelSize.y / _UnderlayTex_TexelSize.x;
+					o.uvUnderlay.x = (o.uvUnderlay.x - 0.5) / aspectScale + 0.5;
+				}
+
+				if (!_MatchAspect) {
+					if (_MainTex_TexelSize.z > _MainTex_TexelSize.w)
+					{
+						float aspectScale = _MainTex_TexelSize.y / _MainTex_TexelSize.x;
+						o.uvUnderlay.y = (o.uvUnderlay.y - 0.5) / aspectScale + 0.5;
+					}
+					else
+					{
+						float aspectScale = _MainTex_TexelSize.x / _MainTex_TexelSize.y;
+						o.uvUnderlay.x = (o.uvUnderlay.x - 0.5) / aspectScale + 0.5;
+					}
+				}
+
+                return o;
+            }
+
+            sampler2D _MainTex;
+			sampler2D _UnderlayTex;
+
+            fixed4 frag(v2f i) : SV_Target
+            {
+                fixed4 main = tex2D(_MainTex, i.uvMain);
+				fixed4 underlay = tex2D(_UnderlayTex, i.uvUnderlay);
+
+				fixed4 output;
+				if (i.uvUnderlay.x < 0 || i.uvUnderlay.x > 1 || i.uvUnderlay.y < 0 || i.uvUnderlay.y > 1)
+					output = main;
+				else
+				{
+					if (underlay.a > 0)
+						output.rgb = lerp(underlay.rgb, main.rgb, main.a);
+					else
+						output.rgb = main;
+					output.a = 1 - ((1 - main.a)*(1 - underlay.a));
+				}
+				return output;
+            }
+            ENDCG
+        }
+    }
+}