#shadow maps

-.o

I added per pixel shading and a shadow map to my renderer today.

The upper two images have shadow maps enabled, the bottom ones don't. You can see, how with shadow maps, for example the cheeks and nose cast shadows, which adds quite a bit of volume.

Sadly, I wasn't able to remove all the artifacts, so you can see quite a bit of flickering on the forehead, when the light travels across. Not entirely sure, how to improve on that, right now, already tried offsets of different kinds. Maybe I will find out something in the next days.

The way OpenGL handles textures is really annoying, though I got most of it down now. When using one texture, it's fine, but multiple ones are really infuriating, especially since there aren't many good tutorials for that.