> The slope y texture_map solves the problem if we need just 2 directions,
> like a texture for "up" and "down".

Wouldn't it be possible to do something like this? (Sorry for lack of
tabbing, and this isn't tested code)

#declare uppercutoff = (cos(degrees(45)) + 1) * 0.5;
#declare lowercutoff = 1 - uppercutoff;

#declare ZSlope = texture {
slope {z}
texture_map {
[0.5
// -z texture here
]
[0.5
// +z texture here
]
}
}

#declare YSlope = texture {
slope {y}
texture_map {
[lowercutoff
// -y texture here
]
[lowercutoff XSlope]
[uppercutoff XSlope]
[uppercutoff
// +y texture here
]
}
}

texture{
slope {x}
texture_map {
[lowercutoff
// -x texture here
]
[lowercutoff YSlope]
[uppercutoff YSlope]
[uppercutoff
// +x texture here
]
}
}


 - Slime
 [ http://www.slimeland.com/ ]

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