[vtkusers] Show Lines in SurfaceMode ?

[Nigel Nunn]

Hi Nick, 
 
> hence it's not currently possible to show a surface 
> and its edges unless two pipelines are used at the 
> same time (which is a waste of processing power). 
 
Edges and surfaces are different beasties.  Try using 
the same geometry and topology to feed both a surface 
mapper and a "vtkExtractEdges" filter.  Not everyone 
wants edges, so having all the necessary overhead in 
each surface mapper would bloat the svelte Vtk. 
 
This sort of separation helps make Vtk so fast! 
 
Nigel 
 
 
> -----Original Message----- 
> From: N Smethurst [mailto:nick.smethurst at free.fr]
> Sent: Wednesday, 15 October 2003 7:03 PM
> To: vtkusers at vtk.org
> Subject: Re: [vtkusers] Show Lines in SurfaceMode ?
> 
> This sounds like the same problem I posted a few days ago. 
> I enquired about the EdgeVisibility attribute in vtkProperty. 
> It exists, but it isn't used anywhere in the renderering 
> process, hence it's not currently possible to show a surface 
> and its edges unless two pipelines are used at the same time 
> (which is a waste of processing power). 
 
 
 

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