UnrotateVector Function

[Zach Griffin]

Can someone please tell me what UnrotateVector does? Having a look at the matrix.cpp file I found a reference to it and tried to convert it but think there may be something wrong.

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r1 = p1 + rot.UnrotateVector (r1 - p1);

my attempt at it was this where p1 = globalPositionChildConstant, rotation = rot :

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r1 = globalPositionChildConstant +   Vector3((r1 - globalPositionChildConstant).dotProduct(rotation.xAxis()), (r1 - globalPositionChildConstant).dotProduct(rotation.yAxis()), (r1 - globalPositionChildConstant).dotProduct(rotation.zAxis()));


[agi_shi]

UnrotateVector() is multiplying a vector by the inverse of the matrix, AFAIK.