Ya3dag is based on the quake 2 modification Quake2maX and the lazarus game dll. Want to create your own levels? Well, you've come to the right place. Ya3dag has a built-in "what you see is what you get" level-editor and has been specifically designed for rapid level creation. Terrain, smart NPC's, weather, physic simulation, ...
A piece of terrain, drawn with relief mapping. See the previous image for the same area drawn without relief mapping.
Relief mapping for terrain and models will be a key feature of the next Ya3dag update.