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jPCT - a 3d engine for Java => Support => Topic started by: raft on January 02, 2010, 04:31:47 pm

Title: a rotation matrix from one direction to another
Post by: raft on January 02, 2010, 04:31:47 pm

hi,

how can i create a rotation matrix such that, when applied, it rotates a direction vector to another ?

formally:

Code: [Select]

SimpleVector from;
Simplevector to;

from.matMul(m);
from.equals(to); // -> should be true ignoring rounding errors


Title: Re: a rotation matrix from one direction to another
Post by: EgonOlsen on January 02, 2010, 05:24:56 pm

Getting the rotation matrix of the first vector, inverting it and multiplying the result with the rotation matrix of the second vector might work...

Title: Re: a rotation matrix from one direction to another
Post by: raft on January 02, 2010, 05:39:13 pm

yes it works, thanks :)