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Assets/Obi/Resources/ObiMaterials/DistanceFields/DistanceFieldRendering.mat

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Assets/Obi/Resources/ObiMaterials/DistanceFields/DistanceFieldRendering.mat.meta

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Assets/Obi/Resources/ObiMaterials/DistanceFields/DistanceFieldSlice.shader

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+Shader "Obi/DistanceFieldSlice"
+{
+	Properties
+	{
+		_MainTex ("Texture", 2D) = "white" {}
+	}
+	SubShader
+	{
+		Tags { "RenderType"="Opaque" }
+		LOD 100
+
+		Cull Off
+
+		Pass
+		{
+			CGPROGRAM
+			#pragma vertex vert
+			#pragma fragment frag
+			
+			#include "UnityCG.cginc"
+
+			struct appdata
+			{
+				float4 vertex : POSITION;
+				float2 uv : TEXCOORD0;
+			};
+
+			struct v2f
+			{
+				float2 uv : TEXCOORD0;
+				float4 vertex : SV_POSITION;
+			};
+
+			sampler2D _MainTex;
+			float4 _MainTex_ST;
+			
+			v2f vert (appdata v)
+			{
+				v2f o;
+				o.vertex = UnityObjectToClipPos(v.vertex);
+				o.uv = TRANSFORM_TEX(v.uv, _MainTex);
+				return o;
+			}
+			
+			half4 frag (v2f i) : SV_Target
+			{
+				half dist = tex2D(_MainTex, i.uv).x-0.5; // signed distance
+				half adist = abs(dist);					 // absolute distance
+				half isofunc = sin(adist*40);			 // isolines function
+
+				// antialiased isolines:
+				half change = fwidth(isofunc);
+				half isolines = smoothstep(-change,change,isofunc);
+
+				// antialiazed sign:
+				change = fwidth(dist);
+				half sign = smoothstep(-change,change,dist);
+				
+				half final = (1-adist) * (0.85+isolines*0.15);
+
+				return half4(final,final*sign,final*sign,1);
+			}
+			ENDCG
+		}
+	}
+}

Assets/Obi/Resources/ObiMaterials/DistanceFields/DistanceFieldSlice.shader.meta

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