Line 30 is causing the problem. Why are you forcing a redraw with a timer?
There seems to be an OpenGL drawing error where the viewport is not resized with the canvas. In my engine this does not occur because I am doing the rendering myself, so that indicates it is an error in BRL.GLGraphics.
There seems to be an OpenGL drawing error where the viewport is not resized with the canvas. In my engine this does not occur because I am doing the rendering myself, so that indicates it is an error in BRL.GLGraphics.