On Dec 2, 2007 7:40 PM, Peter Clifton <[EMAIL PROTECTED]> wrote: > > On Fri, 2007-11-30 at 15:10 +0000, Peter Clifton wrote: > > > Here is another teaser.. > > http://www2.eng.cam.ac.uk/~pcjc2/geda/gerbv_translucent.png > > And another... > > This is getting less "useful", but more pretty.. > > http://www2.eng.cam.ac.uk/~pcjc2/geda/gerbv_GL.png > > This uses Cairo to render into a memory buffer, and then we use that on > a GL context created with GtkGLExt. This allows 3D perspective views (if > we want), and potentially introduces a way to bypass slow rendering. > > Whilst zooming (in at least), it is possible to use the same textures, > letting OpenGL zoom right in, and then redraw the texture at this > resolution (I've not tried to implement this yet, I'm just rendering at > reasonable resolution once, then using that). > > This isn't so helpful with zooming out unfortunately, as we don't > particularly want to cache a texture of the whole board at very fine > resolution. > > I mainly knocked this up to play with some OpenGL coding, and as a test > for a 3D SpaceNavigator "joystick" (6 axis, used for navigating 3D > objects / worlds). > > -- > Peter Clifton > > Electrical Engineering Division, > Engineering Department, > University of Cambridge, > 9, JJ Thomson Avenue, > Cambridge > CB3 0FA > > Tel: +44 (0)7729 980173 - (No signal in the lab!)
That is simply COOL. -- http://www.coe.neu.edu/~efoss/ http://evanfoss.googlepages.com/ _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
