@unknownuser said:

I am having a problem of joining adjacent faces.

Are you sure your adjacent faces are "Co-Planar" ? (same plane)

And put always a file skp (v6) + images!
Else answers are on like empty spaces! 😉

@mitcorb said:

Hi, xennon:
Have a look at this thread. Maybe some relevance?

http://forums.sketchucation.com/viewtopic.php?t=31947#p281905

Thanks, that's a nice plugin that might be useful. What I'd like to be able to do is enter Long/Lat/Date/Time and have the plugin either (or both) point a face to the sun or show how light from the sun is travelling and intersecting with a chosen face and beyond to the ground plane. This will allow me to orient a window so as to control where and how far the sun penetrates into a room/building. I'm guessing that the plugin might generate construction type lines extending out from the selected face towards the sun and back the other way towards the ground in such a way that I can kinda see the sun's rays in my scene.

But i'll certainly be grabbing that plug u linked - looks handy.

John Carmack (Quake series, Doom series, and the upcoming Rage engine) chose to use openGL rather than Direct-X -- that's saying something. Also, Call Of Duty series and Far Cry are notable games/series using openGL.
OpenGL appeals to me (as an end-user only, I know nothing about programming) because it's free, non-proprietary, and is managed by the Khronos Group who also manages openCL. And openCL seems much more significant, at this point, than openGL -- using the graphics card to significantly speed up general computation. At this point it's CUDA (which is arguably better, at the moment) or openCL -- free and works on everything or proprietary and only works on Nvidia hardware.
I realize this is a convoluted and indirect reason to like openGL, but I want the software to succeed that's not owned by a private company that gets to dictate what hardware we have to buy and who can use the software.
Besides, have you seen smallluxgpu (openGL rendering program)? Tell me that's not awesome.

Thank you. I guess I'll settle for that.

You certainly can't be worse than I am. I have wood in my shop that has petrified before I could get round to using it. 😆

@xennon said:

Great! - Thanks for that. I knew there'd be one out there. I'll check it out.

BTW the rec tool gives you a golden ration inference

I've never had a .skp or .skb file stored on the Desktop except if I explicitly pointed to that location.