*automaticallyI'm pretty sure you could have exported the cylinder as is without needing to convert the end faces to triangles and a square. The pink color does not cause the interior to be invisible in game, it gives the interior a black asphalt type texture.
Last I checked, null.png is what torque constructor uses to define what is invisible and what isn't
Blender 2.49b .map exporter (couldn't find a link)
Constructor maybe but when Blockland's game engine doesn't find a texture for an interior it uses the first texture it can find, which is an asphalt texture.
Ah, the texture would need to be in the same folder as the original interior
-snip-
Null.png is applied to the model upon loading it after exporting it from blender
Yes. It is a pink texture. In the screenshot above the interior is clearly not pink. My point is that the null texture is not applied in the game to interiors lacking textures.
You can just make a cylinder primitive in Constructor...And I see you have discovered Crafty.
-- and this tutorial is ment to teach users the "rules" of the interiors, what it can and can't do basicly
you can apply textures to the .map in blender by using the UV edit.