Fixed Z buffer but considering to use w buffer. Also worked on loading
different models and those seem fine. Next is correct perspective
corrected textures and then I will continue on clipping
Perspective correct textures work, they get interpolated by 1/w. Also
tested a simple sphere model to check what the performance is of a model
with 50k triangles without overdraw. Tomorrow I will move the Zbuffer to
the interpolation function and optimize some more. Also need to look at
sub texel correction and maybe sub-pixel correction