In SavePicture() check environment 'OpenGL.SavePicturesViaFBO' before saving a picture via a frame-buffer object -- this allows users to enforce saving of images using the back-buffer.
In SavePicture() check environment 'OpenGL.SavePicturesViaFBO' before saving a
picture via a frame-buffer object -- this allows users to enforce saving of
images using the back-buffer.


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@40174 27541ba8-7e3a-0410-8455-c3a389f83636

bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical,bbockelm/root-historical