Normal maps in Ogre?

DarkDragon · **Posted:** Fri Apr 10, 2009 7:05 am

Blobby wrote:

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

Notepad.

For validating GLSL shaders I use glslValidate from 3DLabs (they aren't offering it anymore).

@djes: That was the first example I've looked when I was going deeper into OGRE. :wink:

So there's no need to be sad.

Maybe you could write those links into your topic:
OGRE Manual - Table of contents
Automatically defined shader variables ...

Blobby · **Joined:** Tue Mar 03, 2009 2:30 pm **Posts:** 17

djes wrote:

Blobby wrote:

There's no examples on the forum at all.

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

oops

and thanks!

I should've known you would've done something as you made that cool water demo too

Blobby · **Joined:** Tue Mar 03, 2009 2:30 pm **Posts:** 17

DarkDragon wrote:

Blobby wrote:

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

Notepad.

For validating GLSL shaders I use glslValidate from 3DLabs (they aren't offering it anymore).

I don't see the option to generate material files in Notepad!

Just kidding.

DarkDragon · **Posted:** Sat Apr 11, 2009 9:56 am

Update

Now it works with an variable number of lights through multipass rendering.
And I've done some changes.

Same link, new luck (Clear your cache):
Download

Falko · **Posted:** Sat Apr 11, 2009 6:49 pm

wow DD, this is a very good sample.

Blobby · **Joined:** Tue Mar 03, 2009 2:30 pm **Posts:** 17

Another nice example, Daniel!.

What I'm a little puzzed over is the form of the light on all your examples. It seems to have a radial quality to it in that as the object rotates you see a line of light running up the center.

I remember once seeing a material with a similar quality in Maya, I think it's name was Blinn. I imagine it'll be good for metalic materials.

IdeasVacuum · **Posted:** Thu Dec 31, 2009 3:21 am

Hello Daniel

Normalmapping.pb crashes PB4.40(x86) during compilation. Any idea why?

IdeasVacuum · **Posted:** Thu Dec 31, 2009 3:30 am

...Ah, it's because Engine3D.dll is in the Project Folder, so not a problem!

Lexicon · **Joined:** Mon Jul 22, 2013 6:16 am **Posts:** 98

Nice work!

But...

Code:

    ;LoadMesh(0, "sphere.mesh")
    
    CreateCube(0, 8)
    GetScriptMaterial(0, "Normalmap")
    
    Parse3DScripts()
    
    ; Create a cube
    CreateEntity(0, MeshID(0), MaterialID(0)) ; #PB_Material_None)

... and nothing.

Why?

Samuel · **Posted:** Mon Mar 31, 2014 6:48 pm

I believe you need to give your mesh tangents. After you create your mesh try BuildMeshTangents(#Mesh).

I also think Parse3DScripts() needs to go after your Add3DArchives, but before you load the material script.

Code:

    Add3DArchive(PathToScripts$, #PB_3DArchive_FileSystem)
    Add3DArchive(PathToTextures$, #PB_3DArchive_FileSystem)
    Parse3DScripts()

    CreateCube(0, 8)
    BuildMeshTangents(0)

    GetScriptMaterial(0, "Normalmap")

    CreateEntity(0, MeshID(0), MaterialID(0))

Lexicon · **Joined:** Mon Jul 22, 2013 6:16 am **Posts:** 98

Samuel wrote:

I believe you need to give your mesh tangents. After you create your mesh try BuildMeshTangents(#Mesh).

I also think Parse3DScripts() needs to go after your Add3DArchives, but before you load the material script.

Code:

    Add3DArchive(PathToScripts$, #PB_3DArchive_FileSystem)
    Add3DArchive(PathToTextures$, #PB_3DArchive_FileSystem)
    Parse3DScripts()

    CreateCube(0, 8)
    BuildMeshTangents(0)

    GetScriptMaterial(0, "Normalmap")

    CreateEntity(0, MeshID(0), MaterialID(0))

Thanks S! I have PB 5.11 and no have this command. :wink:

But I saw this text on the OGRE wiki: http://www.ogre3d.org/tikiwiki/tiki-ind ... umpMapping

Quote:

Important Hint: To use bumpmapping, we'll need tangent vectors for our meshes.

OGRE can do this for you ahead of time if you use the '-t' parameter to the command line tools OgreXmlConverter or OgreMeshUpgrade.

I'll try and report.

Samuel · **Posted:** Mon Mar 31, 2014 7:19 pm

In the past I've used OgreXmlConverter to add tangents to my meshes. It's pretty easy, but it can be time consuming if you have a lot of meshes to alter.

Lexicon · **Joined:** Mon Jul 22, 2013 6:16 am **Posts:** 98

Samuel wrote:

In the past I've used OgreXmlConverter to add tangents to my meshes. It's pretty easy, but it can be time consuming if you have a lot of meshes to alter.

I believe that will be around a thousand.

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