• Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
0
Question by Venczel · Feb 09, 2016 at 06:17 PM · c#arraytexture2dcastinginvalidcastexception

Casting Error C# between Object[] and Texture2D[]

 using UnityEngine;
 using System.Collections;
 using UnityEngine.UI;
 
 public class BackChange : MonoBehaviour
 {
     
     bool swap = true;
     public Texture2D[] files;
 
     void Start ()
     {
         //Line Below has ERROR
         files = (Texture2D[]) Resources.LoadAll("Frames");
         StartCoroutine ("textureSwap", 0.041);
     }
     
     IEnumerator textureSwap (float swapAfter)
     {
         int i;
         int num = 0;
     
         for (i = 1; i > 0; i++)
         {
             if (swap == true)
             {
                 Texture2D file = files[num];
                 GetComponent<RawImage>().texture = file;
                 swap = false;
                 Debug.Log (file);
                 yield return new WaitForSeconds (swapAfter);
             }
             if (swap == false)
             {
                 if (num < 168){
                     num = num + 1;
                 }else if (num >= 168){
                     num = 0;
                 }
 
                 Debug.Log ("Ran!");
 
                 swap = true;
             }
             }
         }
     }

Line 13 is where there is an error: files = (Texture2D[]) Resources.LoadAll("Frames");

My "Frames" folder is full of JPEG images which I have already used earlier as a Texture2D.

Here is the full error output: InvalidCastException: Cannot cast from source type to destination type. BackChange.Start () (at Assets/Scripts/BackChange.cs:13)

This should be able to cast so I don't know why I am getting this error.


Any help would be greatly appreciated!

Comment
Add comment
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

2 Replies

· Add your reply
  • Sort: 
avatar image
0
Best Answer

Answer by Venczel · Feb 12, 2016 at 10:17 AM

I changed my code to this:

using UnityEngine; using System.Collections; using UnityEngine.UI;

public class Backtest : MonoBehaviour {

 bool swap = true;
 public Object[] frames;

 void Start() {
     frames = Resources.LoadAll("Frames", typeof(Texture2D));
     StartCoroutine ("textureSwap", 0.041);
 }

 IEnumerator textureSwap (float swapAfter)
 {
     int i;
     int num = 0;
     
     for (i = 1; i > 0; i++)
     {
         if (swap == true)
         {
             GetComponent<RawImage>().texture = (Texture) frames[num];
             swap = false;
             yield return new WaitForSeconds (swapAfter);
         }
         if (swap == false)
         {
             if (num < 168){
                 num = num + 1;
             }else if (num >= 168){
                 num = 0;
             }

             swap = true;
         }
     }
 }

}

And now it works. I still don't know why the previous cast I tried didn't work but at-least now I have a solution. :D

To anyone else with this problem I suggest you try to cast to "Texture" instead of "Texture2D" and see if that works.

Comment
Add comment · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image
0

Answer by Landern · Feb 09, 2016 at 06:19 PM

Seems like it's picking up more then Texture2D types. You can supply the type to the method to filter out anything undesired.

Change:

 files = (Texture2D[]) Resources.LoadAll("Frames");

to

 files = (Texture2D[]) Resources.LoadAll("Frames", typeof(Texture2D));
Comment
Add comment · Show 1 · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image Venczel · Feb 09, 2016 at 08:01 PM 0
Share

I've changed it to: files = (Texture2D[]) Resources.LoadAll("Frames", typeof(Texture2D)); but it still gives the exact same error.

Thanks anyways though!

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Welcome to Unity Answers

If you’re new to Unity Answers, please check our User Guide to help you navigate through our website and refer to our FAQ for more information.

Before posting, make sure to check out our Knowledge Base for commonly asked Unity questions.

Check our Moderator Guidelines if you’re a new moderator and want to work together in an effort to improve Unity Answers and support our users.

Follow this Question

Answers Answers and Comments

3 People are following this question.

avatar image avatar image avatar image

Related Questions

Multiple Cars not working 1 Answer

InvalidCastException error and logic error 1 Answer

Distribute terrain in zones 3 Answers

Script Wrapper Class 1 Answer

Help Sorting large class full of variables.,Creating and array of arrays of arrays of variables with different data types. 1 Answer


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges