That is, we don't sell it or support it, and I will only work on it if I feel like it. It is an interesting program, though. If you want to have a look at it, you can download it here . The texture demo does not have floors or ceilings. There is no trick to floors or ceilings, you would define them the same way you define walls.
Some people like to have tiled floors and ceilings.
That is your preference. As always, the Fastgraph philosophy is to leave decisions like that to the game developer, who we are convinced are much better at designing such things than we are. Fastgraph's functions are low-level, general purpose, and flexible, and we will get back to describing them now. There are four Fastgraph functions you need to know about in order to define texture maps. This function initializes the texture map table.