[Gmsh] perspective projection mode limits magnification

[Christophe Geuzaine]

Alexander Rabtchevich wrote:
> If perspective projection mode is used, magnification of a view is 
> limited. When reaching some limit, parts of the model starts 
> dissapearing and if further increase magnification the model disappears 
> at all. If set to orthographic mode, everything is OK.
> 

Yes, you reach the clipping planes. I don't have a solution for this.

If anybody on the list has some OpenGL experience, the offending code is 
in Graphics/Draw.cpp (InitProjection): I'd be happy to add a fix if I 
knew one...


> GMSH 2.0.8 - 2.0.10 beta, Windows XP SP2.
> 
> --
> With respect
> Alexander Rabtchevich
> 
> 
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> 


-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine