Just came by while looking for some code to smooth climbing stairs.
I just tried the method you describe, but it happens that Invisible blocks are also ignored by c_trace. I tried also assigning None textures to all sides of the slope block, but it kinda creates holes in the staircase steps textures.
Do you have any idea of the flags I should set or not for the stair steps and the slope block?
Sorry for hijacking this thread...
Emilio
