Normal maps in Ogre?

Blobby · Post by **Blobby** » Fri Apr 03, 2009 4:39 pm

Has anybody managed to display a normal mapped model in Ogre?

Fluid Byte · Post by **Fluid Byte** » Fri Apr 03, 2009 4:45 pm

What is a "normal mapped model"? You mean the vertex normals by any chance?

DarkDragon · Post by **DarkDragon** » Fri Apr 03, 2009 7:09 pm

Here is an example with HLSL:

http://www.bradan.eu/files/ogre_normalmapping.zip

On Linux you need to use GLSL. But porting it is easy. Maybe you'll see some kind of borders like on a football. That's because of the original mesh, not the normal mapping.

Fluid Byte wrote:What is a "normal mapped model"? You mean the vertex normals by any chance?

Normalmapping is like Bumpmapping.

You specify the normal per texel beside the normals per vertex.

Blobby · Post by **Blobby** » Sat Apr 04, 2009 7:17 am

woah! Awesome example, Daniel!

I find normal mapping without specular highlights only really stands out if an object or lightsource is moving around. So it's a wasted effect on things like walls with stationary lighting.

Whereas stationary specular objects tend to look 3D regardless, this will be because the specular highlights shift across the surface as the camera position changes.

So if I wanted specular highlights then would I need to edit the shader file for that?.

DarkDragon · Post by **DarkDragon** » Sat Apr 04, 2009 8:57 am

Well there are already specular highlights.

I've updated it now specifies the specular color in the pb source and the shininess within the material script.

Same link:
http://www.bradan.eu/files/ogre_normalmapping.zip

(You may clear your cache before)

Here is the difference:

Here with a different texture.png:

Blobby · Post by **Blobby** » Sat Apr 04, 2009 12:44 pm

Oh that's just blooming perfect!.

BTW - You should get a paypal address listed at the bottom of your posts. Or maybe on your website.

DarkDragon · Post by **DarkDragon** » Sat Apr 04, 2009 12:56 pm

Blobby wrote:Oh that's just blooming perfect!.

Thanks.

Blobby wrote:BTW - You should get a paypal address listed at the bottom of your posts. Or maybe on your website.

Hehe, yes I should really consider this.

Blobby · Post by **Blobby** » Sat Apr 04, 2009 1:12 pm

yes, you should! People like to have some way to show their appreciation!

Oh, and with your example I found a cool optical illusion!. If you stare at the model spinning around for a minute or two and then press your mouse on the titlebar - the application will freeze, yet you'll notice the monkey *appears* to spin very slowly in the opposite direction.

It's groovey!

DarkDragon · Post by **DarkDragon** » Sat Apr 04, 2009 3:30 pm

I've updated it (there was a warning, that a uniform variable is missing). Same link, clear your cache maybe.

Blobby · Post by **Blobby** » Sat Apr 04, 2009 5:36 pm

Splendid!

max_aigneraigner@web.de · Wed Apr 08, 2009 9:12 pm

O_o GREAT!
I didn't know that shader effects are possible in the pb-ogre o_O...
wow. you've got it ^^

(are you currently working on a projekt with ogre?)

DarkDragon · Post by **DarkDragon** » Thu Apr 09, 2009 8:42 am

max_aigneraigner@web.de wrote:O_o GREAT!
I didn't know that shader effects are possible in the pb-ogre o_O...
wow. you've got it ^^
(are you currently working on a projekt with ogre?)

Maybe

. But I have no time, so I'm not working on anything officially.

Blobby · Post by **Blobby** » Thu Apr 09, 2009 9:54 pm

Hey Daniel,

Can I ask which tool you use to generate your material files and shaders?.

I do plan to try all the Ogre tools, but if you've done that already and you can recommend a few then it'd save us all a ton of time.

Blobby · Post by **Blobby** » Thu Apr 09, 2009 10:03 pm

max_aigneraigner@web.de wrote:O_o GREAT!
I didn't know that shader effects are possible in the pb-ogre o_O...
wow. you've got it ^^
(are you currently working on a projekt with ogre?)

Yes, I imagine a lot of people don't realize this. There's no examples on the forum at all.

It's no wonder so many people are turning their back on Ogre and using other engines. Maybe Fred needs to highlight the advanced abilities of Ogre with Purebasic.

djes · Post by **djes** » Thu Apr 09, 2009 11:20 pm

Blobby wrote:There's no examples on the forum at all.

http://www.purebasic.fr/english/viewtop ... ht=shaders