In the first voxel engine I worked on, I also attempted RLE (for network performance). Doing it in 3 dimensions is not trivial, as you show. I decided for some reason that doing it in a single pass was the "smart" way to do it.
Important thing is that you are having fun and learning. Your first attempt(s) will usually not serve much more purpose than this.
Anyhow, Lemma looks promising (and pretty amazing for your first game to hit shelves) - I was aware of the game but interesting to see how it came about. :)
Important thing is that you are having fun and learning. Your first attempt(s) will usually not serve much more purpose than this.
Anyhow, Lemma looks promising (and pretty amazing for your first game to hit shelves) - I was aware of the game but interesting to see how it came about. :)