Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 12 Next capture
2021 2022 2023
1 capture
12 Jun 22 - 12 Jun 22
sparklines
Close Help
  • 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 OrkhanAlikhanov · Jul 08, 2016 at 11:35 AM · terrainheightmapseamlessheightmaps

Terrains are not as seamless as their heightmaps.

I have 2 heightmaps combining seamlessly but when I import them into unity they don't seem seamless. Heightmaps are 257x257 and I use these settings: alt text

What is the problem?

here are screenshots:

not seamless.png

not seamless wireframed.png

and heightmaps. 1.png 2.png

asd.png (5.6 kB)
Comment
Add comment · Show 6
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 Solokeh · Jul 15, 2016 at 10:57 PM 0
Share

I am having the same issue. $$anonymous$$y infinite terrain is not seamless, even though the heightmap is.

avatar image AlucardJay · Jul 16, 2016 at 09:25 AM 1
Share

The problem is because the heightmap images are not seamless. When you put the two images next to each other, they appear seamless. Because as pixels, they transition nicely without any duplication/shared information along the seam.

HOWEVER the connecting edge of two terrains must share the same vertex height information along the seam. So when you put the images together, there should be a visible seam, where the pixels on the edge of each texture along the seam are the same.

This is where the problem lies. Each pixel represent the height at each vertex position, therefore along the seam they must be the same on each edge of the seam, to represent that they have the same vertex height as the one it is aligned next to.

avatar image OrkhanAlikhanov AlucardJay · Jul 16, 2016 at 09:58 AM 0
Share

Thanks for the information. What if I create one huge heightmap and divide it into several small ones and then make use of them?

avatar image AlucardJay AlucardJay · Jul 17, 2016 at 09:46 AM 1
Share

There are several ways to overcome this problem, like storing the pixel information in one large array, then organize reading that array so that you read from the same array position on each side of a seam.

The best way to solve bugs is to remove them at the source, not implementing work-arounds. Exa$$anonymous$$e how you are generating the heightmaps : is there a way for that to include shared pixels along the edge of each seam?

avatar image AlucardJay AlucardJay · Jul 21, 2016 at 02:10 PM 1
Share

Generate the module for the full size of all your terrains. Then read 'chunks' from the noise module so that the edges are overlapping.

Show more comments

0 Replies

· Add your reply
  • Sort: 

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.

Follow this Question

Answers Answers and Comments

6 People are following this question.

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

Related Questions

Terrain size and 16 bit heightmaps 0 Answers

Set Hightmap resolution while importing custom heightmap texture? 1 Answer

Why is my terrain so bumpy when I use heightmaps? 1 Answer

What makes up the binary data of a 16-bit heightmap? 0 Answers

Unity imports heightmaps in kind of upside down order. 0 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