TrailRenderer.textureScale

Description

A multiplier for the UV coordinates of the trail texture.

using UnityEditor;
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public LineTextureMode textureMode = LineTextureMode.Stretch;
    public float textureScale = 1.0f;
    private TrailRenderer tr;

    void Start()
    {
        tr = GetComponent<TrailRenderer>();
        tr.material = new Material(Shader.Find("Sprites/Default"));
    }

    void Update()
    {
        tr.textureMode = textureMode;
        tr.textureScale = new Vector2(textureScale, 1.0f);
        tr.transform.position = new Vector3(Mathf.Sin(Time.time * 1.51f) * 7.0f, Mathf.Cos(Time.time * 1.27f) * 4.0f, 0.0f);
    }

    void OnGUI()
    {
        textureMode = GUI.Toggle(new Rect(25, 25, 200, 30), textureMode == LineTextureMode.Tile, "Tiled") ? LineTextureMode.Tile : LineTextureMode.Stretch;

        GUI.Label(new Rect(25, 60, 200, 30), "Tile Amount");
        textureScale = GUI.HorizontalSlider(new Rect(125, 65, 200, 30), textureScale, 0.1f, 4.0f);
    }
}