init

Author: Nrjwolf

RadialFill.shader

@@ -0,0 +1,117 @@
+// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
+
+Shader "Custom/RadialFill"
+{
+	Properties
+	{
+		[PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
+		_Color ("Tint", Color) = (1,1,1,1)
+        _Angle("Angle", Range(0, 360)) = 0
+        _Arc1("Arc Point 1", Range(0, 360)) = 15
+        _Arc2("Arc Point 2", Range(0, 360)) = 15
+		[MaterialToggle] PixelSnap ("Pixel snap", Float) = 0
+	}
+
+	SubShader
+	{
+		Tags
+		{ 
+			"Queue"="Transparent" 
+			"IgnoreProjector"="True" 
+			"RenderType"="Transparent" 
+			"PreviewType"="Plane"
+			"CanUseSpriteAtlas"="True"
+		}
+
+		Cull Off
+		Lighting Off
+		ZWrite Off
+		Blend One OneMinusSrcAlpha
+
+		Pass
+		{
+		CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+			#pragma multi_compile _ PIXELSNAP_ON
+			#include "UnityCG.cginc"
+			
+			struct appdata_t
+			{
+				float4 vertex   : POSITION;
+				float4 color    : COLOR;
+				float2 texcoord : TEXCOORD0;
+			};
+
+			struct v2f
+			{
+				float4 vertex   : SV_POSITION;
+				fixed4 color    : COLOR;
+				float2 texcoord  : TEXCOORD0;
+			};
+			
+			fixed4 _Color;
+
+			v2f vert(appdata_t IN)
+			{
+				v2f OUT;
+				OUT.vertex = UnityObjectToClipPos(IN.vertex);
+				OUT.texcoord = IN.texcoord;
+				OUT.color = IN.color * _Color;
+				#ifdef PIXELSNAP_ON
+				OUT.vertex = UnityPixelSnap (OUT.vertex);
+				#endif
+
+				return OUT;
+			}
+
+			sampler2D _MainTex;
+			sampler2D _AlphaTex;
+			float _AlphaSplitEnabled;
+			float _Angle;
+			float _Arc1;
+			float _Arc2;
+
+			fixed4 SampleSpriteTexture (float2 uv)
+			{
+				fixed4 color = tex2D (_MainTex, uv);
+
+#if UNITY_TEXTURE_ALPHASPLIT_ALLOWED
+				if (_AlphaSplitEnabled)
+					color.a = tex2D (_AlphaTex, uv).r;
+#endif //UNITY_TEXTURE_ALPHASPLIT_ALLOWED
+
+				return color;
+			}
+
+			fixed4 frag(v2f IN) : SV_Target
+			{
+				fixed4 c = SampleSpriteTexture (IN.texcoord) * IN.color;
+				c.rgb *= c.a;
+
+                //-------- Creating arc --------//
+                // sector start/end angles
+                float startAngle = _Angle - _Arc1;
+                float endAngle = _Angle + _Arc2;
+
+                // check offsets
+                float offset0 = clamp(0, 360, startAngle + 360);
+                float offset360 = clamp(0, 360, endAngle - 360);
+
+                // convert uv to atan coordinates
+                float2 atan2Coord = float2(lerp(-1, 1, IN.texcoord.x), lerp(-1, 1, IN.texcoord.y));
+                float atanAngle = atan2(atan2Coord.y, atan2Coord.x) * 57.3; // angle in degrees
+
+                // convert angle to 360 system
+                if(atanAngle < 0) atanAngle = 360 + atanAngle;
+
+                if(atanAngle >= startAngle && atanAngle <= endAngle) discard;
+                if(atanAngle <= offset360) discard;
+                if(atanAngle >= offset0) discard;
+
+				return c;
+			}
+		ENDCG
+		}
+	}
+}