• 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 /
  • Help Room /
avatar image
0
Question by Tioboon · May 17, 2021 at 09:05 PM · floatintconvertcolorshex

Color float rgb values cannot be converted correctly to int, and hex.

So... I'm Trying to convert some colors in Hex code to read a bitmap and transform it in a matrix that i use to generate boards.

I Tried to use TryParseHtmlString (https://docs.unity3d.com/ScriptReference/ColorUtility.TryParseHtmlString.html) but it returns the wrong HexCode(I was comparing to the colors i used in photoshop to create the bitmap).

Than i tried to make what is showed in this video(https://www.youtube.com/watch?v=CMGn2giYLc8), and didn't work too.

So i tried to create my own float to hex converter, but, i perceived that the problem is when i try to convert the float number that unity gives me from varColor.r into a int. For example, when i try to convert it in a int this thing fucks me up, because he rounds the number to the wrong side some times (in photoshop is rgb(64, 0, 0) and unity returns me rgb(65,0,0). Than my converter is useless. Because i can't have the exact color that i create in photoshop from the code.

My question is. There is any ways to get the EXACT rgb color in integers? Because if haven't i will recode all this part of colors and rethink how to organize and recognize this color infos.

Here is my code:

 public static string GetHexCode(Color color)
 {
     var redHex = GetHexPerColor(Mathf.RoundToInt(color.r * 255));
     var greenHex = GetHexPerColor(Mathf.RoundToInt(color.g * 255));
     var blueHex = GetHexPerColor(Mathf.RoundToInt(color.b * 255));
     var result = redHex + greenHex + blueHex;
     return result;
 }

 private static string GetHexPerColor(int amount)
 {
     var firstDefiner = Mathf.RoundToInt(amount / 16f);
     var secondDefiner = amount % 16f;
     secondDefiner /= 0.0625f;
     var result = "";

     switch (firstDefiner)
     {
         case 0:
             result += 0;
             break;
         case 1:
             result += 1;
             break;
         case 2:
             result += 2;
             break;
         case 3:
             result += 3;
             break;
         case 4:
             result += 4;
             break;
         case 5:
             result += 5;
             break;
         case 6:
             result += 6;
             break;
         case 7:
             result += 7;
             break;
         case 8:
             result += 8;
             break;
         case 9:
             result += 9;
             break;
         case 10:
             result += 'A';
             break;
         case 11:
             result += 'B';
             break;
         case 12:
             result += 'C';
             break;
         case 13:
             result += 'D';
             break;
         case 14:
             result += 'E';
             break;
         case 15:
             result += 'F';
             break;
         default:
             Debug.Log("Invalid Value");
             break;
     }
     
     switch (secondDefiner)
     {
         case 0:
             result += 0;
             break;
         case 1:
             result += 1;
             break;
         case 2:
             result += 2;
             break;
         case 3:
             result += 3;
             break;
         case 4:
             result += 4;
             break;
         case 5:
             result += 5;
             break;
         case 6:
             result += 6;
             break;
         case 7:
             result += 7;
             break;
         case 8:
             result += 8;
             break;
         case 9:
             result += 9;
             break;
         case 10:
             result += 'A';
             break;
         case 11:
             result += 'B';
             break;
         case 12:
             result += 'C';
             break;
         case 13:
             result += 'D';
             break;
         case 14:
             result += 'E';
             break;
         case 15:
             result += 'F';
             break;
         default:
             Debug.Log("Invalid Value");
             break;
     }

     return result;
 }


When it converts correctly from varColor.r, g or b this work perfectly, but depending on color it doesn't work. Some one can save me please? Even with a solution to create the BitMaps in float values from 0 to 1, than i can convert correctly. I don't know.

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

1 Reply

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

Answer by Tioboon · Aug 24, 2021 at 08:30 AM

For those wondering how to accomplish this:

you can get the script here: https://github.com/Tioboon/ColorToHexUnity

 public static Color GetColorByHex(string hex)
 {
     var redHex = hex[0].ToString() + hex[1];
     var greenHex = hex[2].ToString() + hex[3];
     var blueHex = hex[4].ToString() + hex[5];
     var r = GetRGBPerHex(redHex) / 255f;
     var g = GetRGBPerHex(greenHex) / 255f;
     var b = GetRGBPerHex(blueHex) / 255f;
     Debug.Log(r + " " + g + " " + b);
     var newColor = new Color(r, g, b);
     return newColor;
 }

 private static int GetRGBPerHex(string code)
 {
     var result = 0;
     switch (code[0])
     {
         case '1':
             result += 16;
             break;
         case '2':
             result += 32;
             break;
         case '3':
             result += 48;
             break;
         case '4':
             result += 64;
             break;
         case '5':
             result += 80;
             break;
         case '6':
             result += 96;
             break;
         case '7':
             result += 112;
             break;
         case '8':
             result += 128;
             break;
         case '9':
             result += 144;
             break;
         case 'A':
             result += 160;
             break;
         case 'B':
             result += 176;
             break;
         case 'C':
             result += 192;
             break;
         case 'D':
             result += 208;
             break;
         case 'E':
             result += 224;
             break;
         case 'F':
             result += 240;
             break;
     }
     switch (code[0])
     {
         case '1':
             result += 1;
             break;
         case '2':
             result += 2;
             break;
         case '3':
             result += 3;
             break;
         case '4':
             result += 4;
             break;
         case '5':
             result += 5;
             break;
         case '6':
             result += 6;
             break;
         case '7':
             result += 7;
             break;
         case '8':
             result += 8;
             break;
         case '9':
             result += 9;
             break;
         case 'A':
             result += 10;
             break;
         case 'B':
             result += 11;
             break;
         case 'C':
             result += 12;
             break;
         case 'D':
             result += 13;
             break;
         case 'E':
             result += 14;
             break;
         case 'F':
             result += 15;
             break;
     }

     Debug.Log(result);
     return result;
 }

 public static string GetHexCode(Color color)
 {
     var redHex = GetHexPerColor(Mathf.RoundToInt(color.r * 255));
     var greenHex = GetHexPerColor(Mathf.RoundToInt(color.g * 255));
     var blueHex = GetHexPerColor(Mathf.RoundToInt(color.b * 255));
     var result = redHex + greenHex + blueHex;
     return result;
 }
 private static string GetHexPerColor(float amount)
 {
     var firstDefiner = amount * 0.0627450980392157;
     var secondDefiner = amount % 16;
     var intFirstDefiner = Mathf.FloorToInt((float)firstDefiner);
     var intSecondDefiner = Mathf.FloorToInt(secondDefiner);
     var result = "";
     switch (intFirstDefiner) 
     {
      case 0:
          result += 0;
          break;
      case 1:
          result += 1;
          break;
      case 2:
          result += 2;
          break;
      case 3:
          result += 3;
          break;
      case 4:
          result += 4;
          break;
      case 5:
          result += 5;
          break;
      case 6:
          result += 6;
          break;
      case 7:
          result += 7;
          break;
      case 8:
          result += 8;
          break;
      case 9:
          result += 9;
          break;
      case 10:
          result += 'A';
          break;
      case 11:
          result += 'B';
          break;
      case 12:
          result += 'C';
          break;
      case 13:
          result += 'D';
          break;
      case 14:
          result += 'E';
          break;
      case 15:
          result += 'F';
          break;
      default:
          Debug.Log("Invalid Value");
          break;
     }
  
  switch (intSecondDefiner)
  {
      case 0:
          result += 0;
          break;
      case 1:
          result += 1;
          break;
      case 2:
          result += 2;
          break;
      case 3:
          result += 3;
          break;
      case 4:
          result += 4;
          break;
      case 5:
          result += 5;
          break;
      case 6:
          result += 6;
          break;
      case 7:
          result += 7;
          break;
      case 8:
          result += 8;
          break;
      case 9:
          result += 9;
          break;
      case 10:
          result += 'A';
          break;
      case 11:
          result += 'B';
          break;
      case 12:
          result += 'C';
          break;
      case 13:
          result += 'D';
          break;
      case 14:
          result += 'E';
          break;
      case 15:
          result += 'F';
          break;
      default:
          Debug.Log("Invalid Value");
          break;
  }
  return result;
 }
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

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

159 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Cannot convert float to int? 1 Answer

Convert "Double" to "Float" or "Int"? 1 Answer

Convert Hex (int) to Color/Color32? 5 Answers

Convert Float to Int for Google leaderboard 1 Answer

Reference Vector 3 variable to float variable. 2 Answers


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