From 115f77bda0246a00f6e17469685c67746bdbd29d Mon Sep 17 00:00:00 2001
From: nirav <nirav@airmail.cc>
Date: Sat, 12 Dec 2020 07:18:36 +0000
Subject: Initial commit

---
 Assets/SampleUI/Scripts/ScrollDetailTexture.cs | 64 ++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100755 Assets/SampleUI/Scripts/ScrollDetailTexture.cs

(limited to 'Assets/SampleUI/Scripts/ScrollDetailTexture.cs')

diff --git a/Assets/SampleUI/Scripts/ScrollDetailTexture.cs b/Assets/SampleUI/Scripts/ScrollDetailTexture.cs
new file mode 100755
index 0000000..305383b
--- /dev/null
+++ b/Assets/SampleUI/Scripts/ScrollDetailTexture.cs
@@ -0,0 +1,64 @@
+using UnityEngine;
+using UnityEngine.UI;
+
+
+[RequireComponent(typeof(Image))]
+public class ScrollDetailTexture : MonoBehaviour
+{
+	public bool uniqueMaterial = false;
+	public Vector2 scrollPerSecond = Vector2.zero;
+
+	Matrix4x4 m_Matrix;
+	Material mCopy;
+	Material mOriginal;
+	Image mSprite;
+	Material m_Mat;
+
+	void OnEnable ()
+	{
+		mSprite = GetComponent<Image>();
+		mOriginal = mSprite.material;
+
+		if (uniqueMaterial && mSprite.material != null)
+		{
+			mCopy = new Material(mOriginal);
+			mCopy.name = "Copy of " + mOriginal.name;
+			mCopy.hideFlags = HideFlags.DontSave;
+			mSprite.material = mCopy;
+		}
+	}
+
+	void OnDisable ()
+	{
+		if (mCopy != null)
+		{
+			mSprite.material = mOriginal;
+			if (Application.isEditor)
+				UnityEngine.Object.DestroyImmediate(mCopy);
+			else
+				UnityEngine.Object.Destroy(mCopy);
+			mCopy = null;
+		}
+		mOriginal = null;
+	}
+
+	void Update ()
+	{
+		Material mat = (mCopy != null) ? mCopy : mOriginal;
+
+		if (mat != null)
+		{
+			Texture tex = mat.GetTexture("_DetailTex");
+
+			if (tex != null)
+			{
+				mat.SetTextureOffset("_DetailTex", scrollPerSecond * Time.time);
+
+				// TODO: It would be better to add support for MaterialBlocks on UIRenderer,
+				// because currently only one Update() function's matrix can be active at a time.
+				// With material block properties, the batching would be correctly broken up instead,
+				// and would work with multiple widgets using this detail shader.
+			}
+		}
+	}
+}
-- 
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