Outerra forum

Anteworld - Outerra Game => Tech demo, support, updates => Topic started by: M7 on June 27, 2015, 09:46:18 pm

Title: Normal textures
Post by: M7 on June 27, 2015, 09:46:18 pm

I was testing some texture on normals. All is good at up close but not so at a distance. Without normals, the texture is fine. I tried to save the normals as DXT5/3dc/ATI2 ... it's all the same result.

(http://i.imgur.com/PiMxQ8v.jpg)

Title: Re: Normal textures
Post by: cameni on June 28, 2015, 01:49:10 am

Did you generate mipmaps for the textures?

Title: Re: Normal textures
Post by: M7 on June 28, 2015, 08:56:53 am

It's the mipmap that is screwed up... and only the mipmap for the normal map. The other map are fine. I'll test this some more.

(http://i.imgur.com/5yjhxKD.jpg)

Title: Re: Normal textures
Post by: PytonPago on June 28, 2015, 09:39:29 am

Also, arent 4 of them enough ? ...

Title: Re: Normal textures
Post by: M7 on June 28, 2015, 11:40:41 am

it doesnt seem to take much more space to have 8 of them on the texture anyway :D.

So finally it's only the textures saves with nvidia/photoshop as 3dc that are corrupted. Saving in dtx5 looks good , my bad. I must have loaded the 3dc version to save it as ATI2n and DTX5 im not sure.

I also tried with compressenator, adding mipmap and saving normal as ATI2n and DTX5. They both look good in game but then with ATI2n, it doesnt create mipmap or at least, they dont show up in photoshop when i use the option to view mipmap.

So In the end DTX5 seems the only format to work well and DTX5 generated from compressenator looks the best IMO.

Title: Re: Normal textures
Post by: M7 on June 28, 2015, 11:58:29 am

The difference in game is even more obvious than i thought.

(http://i.imgur.com/f8tCk5t.jpg)

Title: Re: Normal textures
Post by: KW71 on June 28, 2015, 09:13:47 pm

"I also tried with compressenator, adding mipmap and saving normal as ATI2n and DTX5. They both look good in game but then with ATI2n, it doesnt create mipmap or at least, they dont show up in photoshop when i use the option to view mipmap. "

In the compressonator, do you create the mipmaps before compress?

Title: Re: Normal textures
Post by: M7 on June 28, 2015, 09:27:37 pm

I hit generate mipmap after i compress.

Title: Re: Normal textures
Post by: KW71 on June 28, 2015, 10:19:51 pm

It must be first, in order the mipmaps are compressed and are included in the compressed version.

1.- Hit generate mipmaps.
2.- Compress.
3.- Save compressed.

Title: Re: Normal textures
Post by: M7 on June 28, 2015, 10:56:57 pm

Effectively it works! funny that it can work the other way around for other compression but not for ATI2N. Thanks for the tip!

Title: Re: Normal textures
Post by: KW71 on June 29, 2015, 09:49:26 am

Quote from: M7 on June 28, 2015, 10:56:57 pm

Effectively it works! funny that it can work the other way around for other compression but not for ATI2N. Thanks for the tip!

Glad to help.  :)