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Assets/Plugins/Trails FX/Resources/TrailsFX/TrailEffectLaser.shader

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+Shader "TrailsFX/Effect/Laser" {
+Properties {
+    _MainTex ("Texture", 2D) = "white" {}
+    _Color ("Color", Color) = (1,1,1,1)
+    _LaserData("Laser Data", Vector) = (0.1, 20, 0.1)
+    _Cull ("Cull", Int) = 2
+}
+    SubShader
+    {
+        Tags { "Queue"="Transparent+101" "RenderType"="Transparent" }
+
+        Pass
+        {
+			Stencil {
+                Ref 2
+                ReadMask 2
+                Comp NotEqual
+                Pass replace
+            }
+            Blend SrcAlpha OneMinusSrcAlpha
+            ZWrite Off
+            Cull [_Cull]
+
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #pragma multi_compile_instancing assumeuniformscaling nolightprobe nolodfade nolightmap
+            #pragma multi_compile_local _ TRAIL_INTERPOLATE
+            #pragma multi_compile_local _ TRAIL_MASK
+            #pragma multi_compile_local _ TRAIL_LOCAL
+
+            #include "UnityCG.cginc"
+            #pragma target 3.5
+
+            struct appdata
+            {
+                float4 vertex : POSITION;
+                #if TRAIL_MASK
+                    float2 uv : TEXCOORD0;
+                #endif
+                #if TRAIL_INTERPOLATE
+                    float4 prevVertex : TEXCOORD1;
+                #endif
+				UNITY_VERTEX_INPUT_INSTANCE_ID
+            };
+
+            struct v2f
+            {
+            	UNITY_VERTEX_INPUT_INSTANCE_ID
+                float4 pos    : SV_POSITION;
+                #if TRAIL_MASK
+                    float2 uv : TEXCOORD0;
+                #endif
+                float3 vertex : TEXCOORD1;
+				UNITY_VERTEX_OUTPUT_STEREO
+            };
+
+UNITY_INSTANCING_BUFFER_START(Props)
+	UNITY_DEFINE_INSTANCED_PROP(fixed4, _Colors)
+    #if TRAIL_INTERPOLATE
+        UNITY_DEFINE_INSTANCED_PROP(half, _SubFrameKeys)
+    #endif
+    #if TRAIL_LOCAL
+        UNITY_DEFINE_INSTANCED_PROP(float4x4, _ParentMatrices)
+    #endif
+UNITY_INSTANCING_BUFFER_END(Props)
+
+            sampler2D _MaskTex;
+            float4 _MaskTex_ST;
+            float4x4 _PivotMatrix;
+
+            v2f vert (appdata v, uint vid : SV_VertexID)
+            {
+                v2f o;
+				UNITY_SETUP_INSTANCE_ID(v);
+				UNITY_INITIALIZE_OUTPUT(v2f, o);
+				UNITY_TRANSFER_INSTANCE_ID(v, o);
+				UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+                float4 vertex = v.vertex;
+
+                #if TRAIL_INTERPOLATE
+                    half key = UNITY_ACCESS_INSTANCED_PROP(Props, _SubFrameKeys);
+                    vertex.xyz = lerp(v.prevVertex.xyz, vertex.xyz, key);
+                #endif
+
+                o.vertex = v.vertex;
+
+                #if TRAIL_LOCAL
+                    vertex = mul(unity_ObjectToWorld, vertex);
+                    float4x4 parentMatrix = UNITY_ACCESS_INSTANCED_PROP(Props, _ParentMatrices);
+                    vertex = mul(parentMatrix, vertex);
+                    vertex = mul(_PivotMatrix, vertex);
+                    o.pos = mul(UNITY_MATRIX_VP, vertex);
+                #else
+                    o.pos = UnityObjectToClipPos(vertex);
+                #endif
+
+                #if TRAIL_MASK
+                    o.uv = TRANSFORM_TEX(v.uv, _MaskTex);
+                #endif
+
+                return o;
+            }
+
+            float3 _LaserData;
+
+            fixed4 frag (v2f i) : SV_Target
+            {
+            	UNITY_SETUP_INSTANCE_ID(i);
+              	fixed4 col = UNITY_ACCESS_INSTANCED_PROP(Props, _Colors);
+              	float seq = (abs(i.vertex.y) + _LaserData.x * 0.5) % _LaserData.x;
+              	seq = 1.0 - saturate(abs(seq - _LaserData.x * 0.5) * _LaserData.y);
+              	seq *= (col.a % _LaserData.z)> (_LaserData.z * 0.5);
+              	col *= seq;
+
+                #if TRAIL_MASK
+                    fixed4 mask = tex2D(_MaskTex, i.uv);
+                    col.a *= mask.r;
+                #endif
+
+				return col;
+            }
+            ENDCG
+        }
+
+    }
+}