In the Real World, everything is about photons. In fact, (almost) everything is a light source. It's just a matter of emission and transmission of photons. For example, when metal wire inside a light bulb is hot enough, it glows. Then we have a glass layer that can be clear or frosted (each creates different effect). Then the light stream is capped by a case of some kind. The result photons are...
When the light hits a surface, it bounces. This is a basic fact for all lighting computations. You must also remember that almost everything both receives and emits light. For example if you have colour-painted walls try taking a blank sheet of paper and putting it near a wall. You will notice that paper has caught your wall’s colour (it’s called colour bleeding). By the way, did you know that...
Creating realistic 3D graphics is hard, because lighting is a very complex process. On the one hand we have light sources (like Sun, lamp or flashlight) and on the other there are objects we wish to illuminate. Objects receive light and create shadows. But in reality it’s not that simple. For example, when you wake up in the morning and you have your...
I'm currently moving blog to English. It still needs a lot of work, so don't panic if you see some Polish pages. ;)
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