1 files changed, 174 insertions, 0 deletions
diff --git a/Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Drawing/Resources/aline_surface.shader b/Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Drawing/Resources/aline_surface.shader
new file mode 100644
index 0000000..37eec81
--- /dev/null
+++ b/Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Drawing/Resources/aline_surface.shader
@@ -0,0 +1,174 @@
+Shader "Hidden/ALINE/Surface" {
+	Properties {
+		_Color ("Main Color", Color) = (1,1,1,0.5)
+		_MainTex ("Texture", 2D) = "white" { }
+		_Scale ("Scale", float) = 1
+		_FadeColor ("Fade Color", Color) = (1,1,1,0.3)
+	}
+
+	HLSLINCLUDE
+	float4 _MainTex_ST;
+	float4 _Color;
+	float4 _FadeColor;
+	float _Scale;
+
+	#pragma vertex vert
+	#pragma fragment frag
+	ENDHLSL
+
+	// First subshader is for the HighDefinitionRenderPipeline.
+	// The shader contents are identical except that it defines UNTIY_HDRP.
+	SubShader {
+		PackageRequirements {
+            "com.unity.render-pipelines.high-definition": "0.1"
+        }
+		Tags {"Queue"="Transparent+1" "IgnoreProjector"="True" "RenderType"="Transparent" "RenderPipeline"="HighDefinitionRenderPipeline"}
+		LOD 200
+		Offset -2, -20
+		Cull Off
+
+		Pass {
+			// Z-write further back to avoid lines drawn at the same z-depth to partially clip the surface
+			Offset 0, 0
+			ZWrite On
+			ColorMask 0
+
+			HLSLPROGRAM
+			#define UNITY_HDRP
+			#include "aline_common_surface.cginc"
+
+			UNITY_DECLARE_TEX2D(_MainTex);
+
+			v2f vert (appdata_color v) {
+				return vert_base(v, _Color, _Scale);
+			}
+
+			float4 frag (v2f i) : SV_Target {
+				if (i.col.a < 0.3) discard;
+				return float4(1,1,1,1);
+			}
+			ENDHLSL
+		}
+
+
+		// Render behind
+		Pass {
+			ZWrite Off
+			ZTest Greater
+			Blend SrcAlpha OneMinusSrcAlpha
+
+			HLSLPROGRAM
+			#define UNITY_HDRP
+			#include "aline_common_surface.cginc"
+
+			UNITY_DECLARE_TEX2D(_MainTex);
+
+			v2f vert (appdata_color v) {
+				return vert_base(v, _Color * _FadeColor, _Scale);
+			}
+
+			float4 frag (v2f i) : SV_Target {
+				return UNITY_SAMPLE_TEX2D(_MainTex, i.uv) * i.col;
+			}
+			ENDHLSL
+
+		}
+
+		// Render in front
+		Pass {
+			ZWrite Off
+			ZTest LEqual
+			Blend SrcAlpha OneMinusSrcAlpha
+
+			HLSLPROGRAM
+			#define UNITY_HDRP
+			#include "aline_common_surface.cginc"
+
+			UNITY_DECLARE_TEX2D(_MainTex);
+
+			v2f vert (appdata_color v) {
+				return vert_base(v, _Color, _Scale);
+			}
+
+			float4 frag (v2f i) : SV_Target {
+				return UNITY_SAMPLE_TEX2D(_MainTex, i.uv) * i.col;
+			}
+			ENDHLSL
+		}
+	}
+
+	SubShader {
+		Tags {"Queue"="Transparent+1" "IgnoreProjector"="True" "RenderType"="Transparent"}
+		LOD 200
+		Offset -2, -20
+		Cull Off
+
+		Pass {
+			// Z-write further back to avoid lines drawn at the same z-depth to partially clip the surface
+			Offset 0, 0
+			ZWrite On
+			ColorMask 0
+
+			HLSLPROGRAM
+			#include "aline_common_surface.cginc"
+
+			UNITY_DECLARE_TEX2D(_MainTex);
+
+			v2f vert (appdata_color v) {
+				return vert_base(v, _Color, _Scale);
+			}
+
+			float4 frag (v2f i) : SV_Target {
+				if (i.col.a < 0.3) discard;
+				return float4(1,1,1,1);
+			}
+			ENDHLSL
+		}
+
+
+		// Render behind
+		Pass {
+			ZWrite Off
+			ZTest Greater
+			Blend SrcAlpha OneMinusSrcAlpha
+
+			HLSLPROGRAM
+			#include "aline_common_surface.cginc"
+
+			UNITY_DECLARE_TEX2D(_MainTex);
+
+			v2f vert (appdata_color v) {
+				return vert_base(v, _Color * _FadeColor, _Scale);
+			}
+
+			float4 frag (v2f i) : SV_Target {
+				return UNITY_SAMPLE_TEX2D(_MainTex, i.uv) * i.col;
+			}
+			ENDHLSL
+
+		}
+
+		// Render in front
+		Pass {
+			ZWrite Off
+			ZTest LEqual
+			Blend SrcAlpha OneMinusSrcAlpha
+
+			HLSLPROGRAM
+			#include "aline_common_surface.cginc"
+
+			UNITY_DECLARE_TEX2D(_MainTex);
+
+			v2f vert (appdata_color v) {
+				return vert_base(v, _Color, _Scale);
+			}
+
+			float4 frag (v2f i) : SV_Target {
+				return UNITY_SAMPLE_TEX2D(_MainTex, i.uv) * i.col;
+			}
+			ENDHLSL
+		}
+	}
+
+	Fallback Off
+}