Unity Change 3D Object Color On Button Click | Unity Tutorial
Unlock the power of Unity's color customization in this easy-to-follow video tutorial! Whether you're a beginner or looking to refresh your skills, we'll guide you step-by-step on how to change the color of 3D objects in Unity. Learn how to manipulate materials, adjust shader settings, and apply color changes in both the Unity Editor and through scripting. By the end of this tutorial, you'll be able to bring your 3D models to life with vibrant colors and enhance your game’s visual appeal. Don't miss out on this essential skill for any Unity developer!
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Scripts:
ColorChanger.cs
using UnityEngine;
using UnityEngine.UI;
public class ColorChanger : MonoBehaviour
{
public GameObject objectToChange; // The 3D object to change color
public string hexColorCodeRed = "#FFFFFF"; // Default color is white
public string hexColorCodeYellow = "#FFFFFF"; // Default color is white
public string hexColorCodeBlue = "#FFFFFF"; // Default color is white
public string hexColorCodeGreen = "#FFFFFF"; // Default color is white
public string hexColorCodeCustom = "#FFFFFF"; // Default color is white
private Renderer objectRenderer;
void Start()
{
if (objectToChange != null)
{
objectRenderer = objectToChange.GetComponent<Renderer>();
}
}
public void ChangeColorRed()
{
if (objectRenderer != null)
{
Color newColor;
if (HexToColor(hexColorCodeRed, out newColor))
{
objectRenderer.material.color = newColor;
}
else
{
Debug.LogWarning("Invalid hex color code.");
}
}
}
public void ChangeColorYellow()
{
if (objectRenderer != null)
{
Color newColor;
if (HexToColor(hexColorCodeYellow, out newColor))
{
objectRenderer.material.color = newColor;
}
else
{
Debug.LogWarning("Invalid hex color code.");
}
}
}
public void ChangeColorBlue()
{
if (objectRenderer != null)
{
Color newColor;
if (HexToColor(hexColorCodeBlue, out newColor))
{
objectRenderer.material.color = newColor;
}
else
{
Debug.LogWarning("Invalid hex color code.");
}
}
}
public void ChangeColorGreen()
{
if (objectRenderer != null)
{
Color newColor;
if (HexToColor(hexColorCodeGreen, out newColor))
{
objectRenderer.material.color = newColor;
}
else
{
Debug.LogWarning("Invalid hex color code.");
}
}
}
public void ChangeColorCustom()
{
if (objectRenderer != null)
{
Color newColor;
if (HexToColor(hexColorCodeCustom, out newColor))
{
objectRenderer.material.color = newColor;
}
else
{
Debug.LogWarning("Invalid hex color code.");
}
}
}
private bool HexToColor(string hex, out Color color)
{
hex = hex.Replace("0x", ""); // Remove "0x" if present
hex = hex.Replace("#", ""); // Remove "#" if present
if (hex.Length == 6) // RGB
{
byte r = byte.Parse(hex.Substring(0, 2), System.Globalization.NumberStyles.HexNumber);
byte g = byte.Parse(hex.Substring(2, 2), System.Globalization.NumberStyles.HexNumber);
byte b = byte.Parse(hex.Substring(4, 2), System.Globalization.NumberStyles.HexNumber);
color = new Color32(r, g, b, 255);
return true;
}
else if (hex.Length == 8) // RGBA
{
byte r = byte.Parse(hex.Substring(0, 2), System.Globalization.NumberStyles.HexNumber);
byte g = byte.Parse(hex.Substring(2, 2), System.Globalization.NumberStyles.HexNumber);
byte b = byte.Parse(hex.Substring(4, 2), System.Globalization.NumberStyles.HexNumber);
byte a = byte.Parse(hex.Substring(6, 2), System.Globalization.NumberStyles.HexNumber);
color = new Color32(r, g, b, a);
return true;
}
color = Color.clear;
return false;
}
}
