[vtkusers] texture ontop of texture ?

[Benoit Regrain]

Hi,

An other solution would be to create new classes for multi-textures.
The goal of that is to change the mapping calculs made by OpenGL
and set the depth test to EQUAL in place of GREATER when you
render the second texture (it's the software method to render
multi-texturing).

I hope have been  as clear as can be

Benoit

----- Original Message ----- 
From: "de Boer Ingo" <I.deBoer at polytec.de>
To: "David Gobbi" <dgobbi at imaging.robarts.ca>
Cc: <vtkusers at vtk.org>
Sent: Friday, December 12, 2003 4:57 PM
Subject: AW: [vtkusers] texture ontop of texture ?


> Hi David,
>
> > The only way to avoid this weird mixing (other than using an offset)
> > is to have the textures share the same vertices.
> I have thought of that. But they don't share the same vertives.
> Then I tried clipping the large texture with the polygons of the small
> one. The results where just bad...
>
> > Z value.  I don't know if this is a clear explanation, but it should
> > give you the general idea.
> Hmmm... I think I got the idea... I will try on that....
>
> Thanks,
>   Ingo
>
>
> ---
> Dr.-Ing. Ingo H. de Boer
>
> Polytec GmbH
> Polytec-Platz 1-7, 76337 Waldbronn, Germany
> phone: ++49 7243 604 106
> fax  : ++49 7243 604 255
>
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