Init

Assets/AmplifyShaderEditor/Plugins/EditorResources/Previews/Preview_CosTime.shader

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+Shader "Hidden/CosTime"
+{
+	SubShader
+	{
+		Pass
+		{
+			CGPROGRAM
+			#pragma vertex vert_img
+			#pragma fragment frag
+			#include "UnityCG.cginc"
+			#include "Preview.cginc"
+
+			float _EditorTime;
+
+			float4 frag( v2f_img i ) : SV_Target
+			{
+				float4 t = _EditorTime;
+				t.x = _EditorTime / 8;
+				t.y = _EditorTime / 4;
+				t.z = _EditorTime / 2;
+				return cos(t);
+			}
+			ENDCG
+		}
+	}
+}