1 files changed, 79 insertions, 0 deletions
diff --git a/Assets/Art/Vfx/GrabSquaresEffect/Shaders/GrabSquares.shader b/Assets/Art/Vfx/GrabSquaresEffect/Shaders/GrabSquares.shader
new file mode 100644
index 00000000..bc246d32
--- /dev/null
+++ b/Assets/Art/Vfx/GrabSquaresEffect/Shaders/GrabSquares.shader
@@ -0,0 +1,79 @@
+// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
+
+Shader "GrabSquaresEffect/GrabSquare" {
+	Properties{
+		[HDR]_Color("Color", Color) = (0.5,0.5,0.5,0.5)
+		_MainTex("Particle Texture", 2D) = "white" {}
+		_DistTex("Distort Texture", 2D) = "white" {}
+		_Params("_Params (X=OffsetMultiply, YZW=Unused)", Float) = (0.05, 0, 0, 0)
+	}
+		Category{
+			Tags { "Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Transparent" }
+			Blend SrcAlpha OneMinusSrcAlpha
+			Cull Back Lighting Off ZWrite Off
+
+			SubShader {
+				GrabPass{ "_GrabTexture" }
+				Pass {
+					CGPROGRAM
+					#pragma vertex vert
+					#pragma fragment frag
+
+					#include "UnityCG.cginc"
+
+					fixed4 _Color;
+                    sampler2D _MainTex;
+					sampler2D _GrabTexture;
+					sampler2D _DistTex;
+					float4 _Params;
+
+					struct appdata_t {
+						float4 vertex : POSITION;
+						fixed4 color : COLOR;
+						float2 texcoord : TEXCOORD0;
+					};
+
+					struct v2f {
+						float4 vertex : SV_POSITION;
+						half4 texcoord : TEXCOORD0;
+						float4 color : COLOR;
+						half4 screenuv : TEXCOORD1;
+					};
+
+					float4 _MainTex_ST;
+
+					v2f vert(appdata_t v)
+					{
+						v2f o;
+
+						o.vertex = UnityObjectToClipPos(v.vertex);
+
+						o.color = v.color;
+						o.texcoord.xy = TRANSFORM_TEX(v.texcoord, _MainTex);
+						
+						half4 screenpos = ComputeGrabScreenPos(o.vertex);
+						o.screenuv.xy = screenpos.xy / screenpos.w;
+
+						return o;
+					}
+
+					float4 frag(v2f i) : SV_Target
+					{
+						half4 distTex = tex2D(_DistTex, i.texcoord.xy);
+						half4 mainTex = tex2D(_MainTex, i.texcoord.xy);
+						half2 distOffest = (distTex.xy * 2 - 1) * _Params.x * i.color.a;
+
+						half2 uv = i.screenuv.xy + distOffest;
+						half4 grabTex = tex2D(_GrabTexture, uv);
+						half4 col = 2.0f * i.color * _Color * mainTex;
+						
+						col = grabTex + mainTex * col;
+						col.a = saturate(col.a);
+
+						return col;
+					}
+					ENDCG
+				}
+			}
+		}
+}