Part of the Khronos Group
OpenGL.org

The Industry's Foundation for High Performance Graphics

from games to virtual reality, mobile phones to supercomputers

Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 24

Thread: How to texture a terrain?

  1. #11
    Guest

    Re: How to texture a terrain?

    I know what is geometry climaps...In the beginnig I wanted to do this but it is not an efficient simplification mesh method...Moreover with this method I have to build terrains with a high vertice density in order to don't obtain gaps between consecutives simplification levels.
    huh?

  2. #12
    Guest

    Re: How to texture a terrain?

    But the problem is not my LOD it is only about texture mapping. I thought about a kind of texture clipmaps but this is not the first problem i.e memory space.
    SO I think, despite everything, that I don't have any solution, I have to implement multitexturing and give up accurate texture mapping...
    what?

  3. #13
    Senior Member OpenGL Pro dletozeun's Avatar
    Join Date
    Jan 2006
    Location
    FRANCE
    Posts
    1,370

    Re: How to texture a terrain?

    excuse me..what is the problem? I don't understand what you want to say by 'huh?' and 'what?'...
    -I said some silly things?
    -My english is not clear understanding?

  4. #14
    Senior Member OpenGL Pro
    Join Date
    Jul 2001
    Location
    France
    Posts
    1,749

    Re: How to texture a terrain?

    Don't pay any attention to that.

    Unfortunately I can't try to help you anymore, this is out of my capabilities.

  5. #15
    Advanced Member Frequent Contributor
    Join Date
    Aug 2001
    Location
    Italy
    Posts
    628

    Re: How to texture a terrain?

    Originally posted by knackered:
    Megatextures are just clipmaps
    In fact I was very disappointed when I discovered this "megatexturing" stuff is just paged texturing. This is ugly.

    By the way, although I can find many cases in which this is useful, I think repeating the texture will still be quite common. It takes less money to produce and the result is often good enough.

    Anyway, although bruteforcing terrain is pretty feasible, I would still do LOD. Some reasons:
    1- It's practicing it, if you care.
    2- A thing is avoiding bottlenecks, a thing is trashing performance: even if this is not bottlenecking there would be no quality improvement either.
    3- LoD can still play a major role if you don't fit the RAM (rather unlikely for experiments but sometimes happens).

  6. #16
    Senior Member OpenGL Pro
    Join Date
    Jul 2001
    Location
    France
    Posts
    1,749

    Re: How to texture a terrain?

    I'm actually pretty sure little textures is the best thing. Very large textures might better fit for very high detailed objects but not for a complete scene, almost on today's games where levels are getting more and more big.

    As I said before I'm also pretty sure making a difference between the terrain geometry and the road geometry is the best thing even if it's an overhead for modelers. With this method you don't waste your memory for textures and you can make even bigger levels, more LODs...

    I haven't looked deeply at RTS so I'm not really sure, but this is how I would start one.

  7. #17
    Senior Member OpenGL Pro dletozeun's Avatar
    Join Date
    Jan 2006
    Location
    FRANCE
    Posts
    1,370

    Re: How to texture a terrain?

    Thanks a lot! I agree with you.

    So big texture is not a good solution for huge terrains texture mapping.

    With a LOD, I have an other solution: I can just simplify the zones that have the same material! In this case I won't have problems with details that disappear...but the terrain LOD will be less efficient...
    I have no other solution, so I will do that.

  8. #18
    Guest

    Re: How to texture a terrain?

    this thread reads like the confession of psychotic schizophrenic.

  9. #19
    Senior Member OpenGL Pro dletozeun's Avatar
    Join Date
    Jan 2006
    Location
    FRANCE
    Posts
    1,370

    Re: How to texture a terrain?

    LOOOOOL!! Maybe it is you the psychotic schizophrenic who waste his time on thread like that because he doesn't understand everything we are talking about!

  10. #20
    Senior Member OpenGL Guru knackered's Avatar
    Join Date
    Aug 2001
    Location
    UK
    Posts
    3,032

    Re: How to texture a terrain?

    Originally posted by dletozeun:
    [QB]So big texture is not a good solution for huge terrains texture mapping./QB]
    That's a pretty funny sentence.
    Man, it's 2006 and you're talking as if you've just invented terrain texture tiling. Everybody else has been doing it that way for years, but now the hardware makes more ambitious visual fidelity possible, so hacks like that are being dropped quicker than....something very unpleasant to hold.

    I think I know what '?' means, it really does look like jide's got himself another login and is having a chat with himself.
    Knackered

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •