- #1

mbouksim

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Hello everyone,

i'm new to the forum so hope it is the right place for my question :)

i need to know the angle between two triangular surfaces, the easiest way would be extract the normal for each surface(u,v) and then using the dot product we can easily compute the cosine for the angle I'm looking for.

the problem with this method is that my angle (let's call it [the]) ranged between [0°,360°] and the cosine is symmetric, what i mean is how to know the real angle when the cos[the]=1/2 (the=60° or 300°).

thanks in advance for your help and sorry for my bad English

i'm new to the forum so hope it is the right place for my question :)

i need to know the angle between two triangular surfaces, the easiest way would be extract the normal for each surface(u,v) and then using the dot product we can easily compute the cosine for the angle I'm looking for.

the problem with this method is that my angle (let's call it [the]) ranged between [0°,360°] and the cosine is symmetric, what i mean is how to know the real angle when the cos[the]=1/2 (the=60° or 300°).

thanks in advance for your help and sorry for my bad English

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