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3 Rotations from one

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hi, i have a rotation in vrml described with 3 values in space and a value of the rotation. the rotation is described around a line from the origin to the vertex, described by the 3 values. here's an example what i mean: rotation 1 2 3 -0.7435, where 1,2,3 are the x,y,z values of the vertex and -0.7435 the rotation value in radians. now my problem is that i want to do 3 single rotations to get the same final rotation done by the term above. how can i get the single x, y and z rotation values from the example? anyone a solution for that? thanks!

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It'd just convert them to a 3x3 matrix, multiply them together and convert that back again (if that's what you want). This will probably do the trick.

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