Do you know Rubber Band for 3DCG application?
Rubber Band is used, When user select some rendering objects, for example node, polygon, solid volume and so on.
Drawing range of rubber band is rendered as edge line of rectangle.
Always, a developer implements drawing rubber band with GDI and OpenGL.
Such a application as used GDI and OpenGL can not work rubber band on Windows Vista's Aero.
Because GDI is not rendered by GPU at enabled Aero, Logical computing a rendered frame by OpenGL and GDI can not run.
If you want to use GDI with OpenGL, see this page!
4/21/2009
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