Is there a way to blend textures, as in texture_map, but using angle of 
normal as a pattern? 

So that "walls" - surfaces like :

 |
 | plane { x,0 }  or plane { z,0 }
 |
 |

will have texture A, and flat surfaces like 

-----  plane { y,0 }

would have texture B, and

plane { y,0 rotate x*45 /* or z*45 */ }  will be 50% A and 50% B


I want to use it for rusty ship - so that deck floor would have quite 
normal surface, and all walls will have "water steams" / rust (like this 
marks under windows, etc)

-- 
http://www.raf256.com/3d/
Rafal Maj 'Raf256', home page - http://www.raf256.com/me/
Computer Graphics

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