Flatkit 추가 및 설정

Assets/FlatKit/Shaders/LightPlane.shader

@@ -0,0 +1,99 @@
+Shader "FlatKit/LightPlane" {
+Properties
+{
+    [Header(Color alpha controls opacity)]
+    [HDR]_Color ("Color", Color) = (0.5, 0.5, 0.5, 1.0)
+
+    [Space(15)]
+    _Depth ("Depth Fade Distance", Range(1.0, 500.0)) = 100.0
+
+    [Space]
+    _CameraDistanceFadeFar("Camera Distance Fade Far", Float) = 10.0
+    _CameraDistanceFadeClose("Camera Distance Fade Close", Float) = 0.0
+
+    [Space]
+    _UvFadeX("UV Fade X", Range(0, 10)) = 0.1
+    _UvFadeY("UV Fade Y", Range(0, 10)) = 0.1
+    [ToggleOff]_AllowAlphaOverflow("Allow Alpha Overflow", Float) = 0.0
+}
+
+SubShader
+{
+    Tags{"Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Transparent"}
+    LOD 200
+    Blend SrcAlpha OneMinusSrcAlpha
+    Lighting Off ZWrite Off
+
+    Pass
+    {
+        CGPROGRAM
+        #pragma vertex vert
+        #pragma fragment frag
+        #pragma shader_feature _ _ALLOWALPHAOVERFLOW_OFF
+        #pragma multi_compile_fog;
+        #pragma target 3.0
+
+        #include "UnityCG.cginc"
+
+        fixed4 _Color;
+        float _Depth;
+        float _CameraDistanceFadeFar, _CameraDistanceFadeClose;
+        float _UvFadeX, _UvFadeY;
+
+        UNITY_DECLARE_DEPTH_TEXTURE(_CameraDepthTexture);
+
+        struct appdata{
+            float4 vertex : POSITION;
+            float2 texcoord : TEXCOORD0;
+            UNITY_VERTEX_INPUT_INSTANCE_ID
+        };
+
+        struct v2f{
+            float2 uv : TEXCOORD0;
+            UNITY_FOG_COORDS(1)
+            float3 dist :TEXCOORD3;
+            float4 projPos : TEXCOORD2;
+            float4 vertex : SV_POSITION;
+            UNITY_VERTEX_OUTPUT_STEREO
+        };
+
+        v2f vert (appdata i){
+            v2f o;
+            UNITY_SETUP_INSTANCE_ID(i);
+            UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+
+            o.vertex = UnityObjectToClipPos(i.vertex);
+            o.uv = i.texcoord;
+            UNITY_TRANSFER_FOG(o,o.vertex);
+            o.dist = UnityObjectToViewPos(i.vertex);
+
+            o.projPos = ComputeScreenPos(o.vertex);
+            UNITY_TRANSFER_DEPTH(o.projPos);
+
+            return o;
+        }
+
+        fixed4 frag(v2f i) : SV_TARGET
+        {
+            fixed4 c = _Color;
+            const float scene_depth = LinearEyeDepth(SAMPLE_DEPTH_TEXTURE_PROJ(_CameraDepthTexture, UNITY_PROJ_COORD(i.projPos)));
+            const float object_depth = i.projPos.z + length(i.dist);
+            const float depth_fade = saturate((scene_depth - object_depth) / _Depth);
+            c.a *= saturate((depth_fade * length(i.dist) - _CameraDistanceFadeClose) / (_CameraDistanceFadeFar - _CameraDistanceFadeClose));
+
+            const float fade_uv_x = pow(smoothstep(1, 0, abs(i.uv.x * 2 - 1)), _UvFadeX);
+            const float fade_uv_y = pow(smoothstep(1, 0, abs(i.uv.y * 2 - 1)), _UvFadeY);
+            c.a *= fade_uv_x * fade_uv_y;
+
+#ifdef _ALLOWALPHAOVERFLOW_OFF
+            c.a = saturate(c.a);
+#endif
+            UNITY_APPLY_FOG(i.fogCoord, c);
+            return c;
+        }
+
+    ENDCG
+}
+}
+FallBack "Diffuse"
+}