Actual project things

Assets/TextureTilingController.cs

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+using UnityEngine;
+using System.Collections;
+
+[ExecuteInEditMode]
+public class TextureTilingController : MonoBehaviour
+{
+
+    // Give us the texture so that we can scale proportianally the width according to the height variable below
+    // We will grab it from the meshRenderer
+    public Texture texture;
+    public float textureToMeshZ = 2f; // Use this to contrain texture to a certain size
+
+    Vector3 prevScale = Vector3.one;
+    float prevTextureToMeshZ = -1f;
+
+    // Use this for initialization
+    void Start()
+    {
+        this.prevScale = gameObject.transform.lossyScale;
+        this.prevTextureToMeshZ = this.textureToMeshZ;
+
+        this.UpdateTiling();
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        // If something has changed
+        if (gameObject.transform.lossyScale != prevScale || !Mathf.Approximately(this.textureToMeshZ, prevTextureToMeshZ))
+            this.UpdateTiling();
+
+        // Maintain previous state variables
+        this.prevScale = gameObject.transform.lossyScale;
+        this.prevTextureToMeshZ = this.textureToMeshZ;
+    }
+
+    [ContextMenu("UpdateTiling")]
+    void UpdateTiling()
+    {
+        // A Unity plane is 10 units x 10 units
+        float planeSizeX = 1f;
+        float planeSizeZ = 1f;
+
+        // Figure out texture-to-mesh width based on user set texture-to-mesh height
+        float textureToMeshX = ((float)this.texture.width / this.texture.height) * this.textureToMeshZ;
+
+        var textureScale = new Vector2(planeSizeX * gameObject.transform.lossyScale.x / textureToMeshX, planeSizeZ * gameObject.transform.lossyScale.z / textureToMeshZ);
+        gameObject.GetComponent<Renderer>().material.SetTextureScale("_MainTex", textureScale);
+        gameObject.GetComponent<Renderer>().material.SetTextureScale("_BumpMap", textureScale);
+    }
+}