Re: gEDA-user: STEP Format? [WAS: Re: PCB+GL+3D Packages??]

["Bert Timmerman" <bert.timmerman@xxxxxxxxx>]

Hi John, 

> -----Original Message-----
> From: geda-user-bounces@xxxxxxxxxxxxxx 
> [mailto:geda-user-bounces@xxxxxxxxxxxxxx] On Behalf Of John Griessen
> Sent: Saturday, November 20, 2010 5:13 PM
> To: gEDA user mailing list
> Subject: Re: gEDA-user: STEP Format? [WAS: Re: PCB+GL+3D Packages??]
> 
> On 11/19/2010 05:02 PM, Peter Clifton wrote:
> > On Fri, 2010-11-19 at 13:06 -0800, Colin D Bennett wrote:
> >
> >>> >  >  That suits me just fine.. OpenGL_likes_  rendering 
> triangles, 
> >>> > and any  >  other geometry primitives are extra work to 
> >>> > implement;)
> >> >
> >> >  But wouldn't support for higher-level shapes be superior to 
> >> > triangle  meshes for high-quality renderings (e.g., raytracing, 
> >> > etc.)?  Is the  goal for PCB 3D support intended to be primarily 
> >> > for high-quality  renderings or for real-time viewing of and 
> >> > interaction with the 3D  scene?
> > Primarily for the latter (at the moment).
> 
> There's another format sweet home 3D uses, .obj, that could 
> be good for parametric modeling and easy to parse:
> 
> http://www.sweethome3d.com/support/forum/viewthread_thread,940
> 
> John Griessen
> 
> 

I just tried to look into an AOI portable.obj model of a laptop --> 580 kB
zipped and 2.8 MB expanded.

Nice ubunto logo though ;-)

Nah, thanks, I think it's a bit too expensive on memory and IMHO vertexes
resemble "minced meat" --> try putting it together to get the original cow
;-)

I'd rather have 3D primitives like cubes, cylinders, spheres, toroids etc.

Kind regards,

Bert Timmerman.



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