[Vxl-users] VXL/MFC/COIN and 3D textures

[Jason M. <jma...@cs...>]

I recently had an issue with 3D textures in a VXL VGUI tableau subclass 
which used Coin3D and SIM Voleon for rendering and MFC on Windows.  The 
Coin graphics engine was unable to use 3D textures based on the Open GL 
context, which was odd, since Coin has it's own GL and GLEXT headers which 
clearly enable most of the latest GL functions.

Anyway, someone in my lab pointed out that vgui::init accepted certain 
command-line arguments passed to it, one of which, "--mfc-use-gl", 
disabled a flag called vgui_mfc_use_bitmap.  Concatenating this argument 
with my existing argument list and sending it to vgui::init fixed the 
problem, and I had a tremendous speedup in my volume rendering project.

Hopefully, this post will be returned by Google in the future and save 
someone else some time.