• 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 fred_gds · Jan 07, 2014 at 01:00 PM · editorterrainresolutiondata

high resolution height map without loosing data

Hey

I was wondering how it would be possible to convert a low resolution height map to a high resolution one. I currently have a height map with a resolution of 513x513 but I'd like to scale it up to 2049x2049 to work on further details. But if I change the resolution in the terrain field, I actually use all the heights and so on which I changed earlier.

So I guess that I need to that through script but I couldn't figure out a good way to do that yet. Anybody an idea how to that?

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

Answer by raimon.massanet · Jan 07, 2014 at 01:58 PM

This is a tricky one.

If what you want is to "add" more terrain, I would do something like this:

     void ChangeTerrainResolution (int newResolution)
     {
         Terrain t = Terrain.activeTerrain;
         TerrainData d = t.terrainData;
         float[,] heights = d.GetHeights(0, 0, d.heightmapWidth, d.heightmapHeight);
         
         int previousResolution = d.heightmapResolution;
         d.heightmapResolution = newResolution;
         float[,] newHeights = new float[newResolution,newResolution];
         for(int x = 0; x < previousResolution; x++)
         {
             for(int y = 0; y < previousResolution; y++)
             {
                 newHeights[x,y] = heights[x,y];
             }
         }
         d.SetHeights(0, 0, newHeights);
     }

If you want to actually be able to "fill in the gaps", you will need to interpolate new height values and it will be somewhat more complex.

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
Wiki

Answer by fred_gds · Jan 07, 2014 at 03:41 PM

Yeah I want to "fill the gaps" and that's actually where I'm struggling

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 raimon.massanet · Jan 07, 2014 at 03:59 PM 0
Share

Then I suggest that you export your heightmap to a raw file, change the image size using an image editor like Photoshop and re-import the heightmap. That way you don't have to code the pixel interpolation logic.

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

The best place to ask and answer questions about development with Unity.

To help users navigate the site we have posted a site navigation guide.

If you are a new user to Unity Answers, check out our FAQ for more information.

Make sure to check out our Knowledge Base for commonly asked Unity questions.

If you are a moderator, see our Moderator Guidelines page.

We are making improvements to UA, see the list of changes.



Follow this Question

Answers Answers and Comments

19 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

Related Questions

What they did with terrain editor? 1 Answer

Terrain Height Map Max Resolution is 4096? 0 Answers

Custom attributes? 2 Answers

[semi-solved] My .raw heigtmap repeats itself? 1 Answer

Terrain goes black when changing graphic quality in builded game 1 Answer

  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges