Re: [PyOpenGL-Users] orthographic projection error

[Greg E. <gre...@ca...>]

altern wrote:
> The example draws a one pixel wide box in the borders of the 
> window. In none of the sytems I tried so far the box was totally 
> visible. There is always one or two sides missing just by one pixel.

What coordinates are you using to draw the box, exactly?
You might need to offset them by half a pixel so that
the lines go through the centres of pixels. If you're
actually trying to draw a line between two pixels,
different systems may round it in different ways.

--
Greg