project-navigation
Personal tools
« previous next »
Pages: 1 [2] 3 4 5   Go Down

Author Topic: Textures  (Read 34529 times)

Offline BTAxis

  • Administrator
  • PHALANX Commander
  • *******
  • Posts: 2607
    • View Profile
Re: Textures
« Reply #15 on: December 26, 2008, 10:58:51 pm »
Does this texture even need a normal ma? It looks like it's supposed to look flat.
Logged

Offline Voller

  • Squad Leader
  • ****
  • Posts: 104
    • View Profile
Re: Textures
« Reply #16 on: December 26, 2008, 11:04:27 pm »
I had to upload it again, cause it wasn't displayed correctly the first time.

Well it's got a lousy resolution, so the normal map won't have much effect. But the normal map should emphasise the tiles, and the texture also has some roughness to it.

[attachment deleted by admin]
Logged

Offline BTAxis

  • Administrator
  • PHALANX Commander
  • *******
  • Posts: 2607
    • View Profile
Re: Textures
« Reply #17 on: December 26, 2008, 11:23:40 pm »
Ah, okay. I figured it might be a plastic floor with a tile motif since I didn't see much of a seam between the tiles.
Logged

Offline Mattn

  • Administrator
  • PHALANX Commander
  • *****
  • Posts: 4831
  • https://github.com/mgerhardy/vengi
    • View Profile
    • Vengi Voxel Tools
Re: Textures
« Reply #18 on: December 27, 2008, 08:52:57 am »
thanks for the texture. i will add it to trunk asap. the normalmap should have the height encoded as alpha channel and should have a lttle bit sharper borders.
Logged

Offline Voller

  • Squad Leader
  • ****
  • Posts: 104
    • View Profile
Re: Textures
« Reply #19 on: December 27, 2008, 12:13:52 pm »
Hmm, guess the file I uploaded first time round was the correct one after all. I didn't know normal maps could also include height information.

I updated my first post. Let me know if it is to your liking.
Logged

Offline Mattn

  • Administrator
  • PHALANX Commander
  • *****
  • Posts: 4831
  • https://github.com/mgerhardy/vengi
    • View Profile
    • Vengi Voxel Tools
Re: Textures
« Reply #20 on: December 27, 2008, 01:07:53 pm »
the normal map should not include details like the texture - see sitters normalmap from above - or even better, try to understand the tutorial in the artwork wiki article that i linked. normalmaps are just a kind of heightmap (basically). it often help when you flatten the image colors to e.g. 5 or 6 colors (in your image 3 colors would be the best - 2 color for the squares and 1 color for the gap between them) then gaussian blurring might help a little (also depends on the image - convert back to rgba and encode the height in the normalmap.
Logged

Offline DuKe2112

  • Squad Leader
  • ****
  • Posts: 102
    • View Profile
Re: Textures
« Reply #21 on: December 27, 2008, 03:09:08 pm »
Well, sitters normal map has a texture, although it is very subtle, because it's just cloth.

And why shouldn't it, does it take more calculation time to apply a complex normal map than it takes to applly a simple normal map? As far as I know it doesn't.

I don't think UFO:AI let's you zoom in far enough that it matters, but it doen't hurt to have the detail either.
Logged

Offline Voller

  • Squad Leader
  • ****
  • Posts: 104
    • View Profile
Re: Textures
« Reply #22 on: December 27, 2008, 05:28:03 pm »
I think we might be talking about different things here. I do understand the concept of a normal map, and that of a bump map. I was not aware you could have both in one, that's all.

The normal map I made does not include any texture information. However, it obviously emphasises some of the details that can already be seen in the texture (dirt, scratches, dents). As matter of fact, the normal map was not created from the finished texture, but in parallel.

I have reattached both pictures in a higher resolution below. The normal map _is_ mostly flat apart from some detail of course. As DuKe says: more detail shouldn't hurt.

The alpha channel makes it a bit difficult to see the colour information in the gap between the tiles.


[attachment deleted by admin]
« Last Edit: December 27, 2008, 07:47:46 pm by Mattn »
Logged

Offline Voller

  • Squad Leader
  • ****
  • Posts: 104
    • View Profile
Re: Textures
« Reply #23 on: January 01, 2009, 06:30:57 pm »
Happy new year everybody.

I had a stab at another texture: wall013. Let me know what you guys think. I'm still learning, so any constructive criticism is most welcome :)

Are normal maps implemented in trunk? Could somebody maybe post a screenshot with the texture in action? I haven't taken a look at compiling the sources yet.

@Mattn: I'm having some trouble uploading the pics. Says the upload folder is full. Could you do the honours again? Thanks!




[attachment deleted by admin]
Logged

Offline Mattn

  • Administrator
  • PHALANX Commander
  • *****
  • Posts: 4831
  • https://github.com/mgerhardy/vengi
    • View Profile
    • Vengi Voxel Tools
Re: Textures
« Reply #24 on: January 02, 2009, 12:30:54 pm »
thanks for the texture - yes - normalmaps are implemented in trunk. but i can't post a screenshot - my notebook is not capable of running the glsl shaders.
Logged

Offline Voller

  • Squad Leader
  • ****
  • Posts: 104
    • View Profile
Re: Textures
« Reply #25 on: January 02, 2009, 08:35:15 pm »
Ok, here are the next ones: wall011, wall012 and wall014. Is it just me or are they identical to wall023, wall024 and wall025?

The .map file also includes wall013.

wall011:



wall012:



wall014:



[attachment deleted by admin]
Logged

Offline Mattn

  • Administrator
  • PHALANX Commander
  • *****
  • Posts: 4831
  • https://github.com/mgerhardy/vengi
    • View Profile
    • Vengi Voxel Tools
Re: Textures
« Reply #26 on: January 02, 2009, 08:43:58 pm »
very cool - thank you very much.
Logged

Offline Voller

  • Squad Leader
  • ****
  • Posts: 104
    • View Profile
Re: Textures
« Reply #27 on: January 05, 2009, 09:57:31 pm »
You're welcome. Another simple one: floor008




[attachment deleted by admin]
Logged

Offline Mattn

  • Administrator
  • PHALANX Commander
  • *****
  • Posts: 4831
  • https://github.com/mgerhardy/vengi
    • View Profile
    • Vengi Voxel Tools
Re: Textures
« Reply #28 on: January 05, 2009, 10:25:38 pm »
as always: thanks :-D

applied to trunk
Logged

shedeki

  • Guest
Re: Textures
« Reply #29 on: April 17, 2009, 12:46:34 am »
Logged
Pages: 1 [2] 3 4 5   Go Up
« previous next »