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Functions

Data Component Functions Return components of 3D data structures

	RtFloat	N3D_XComp(RtFloat *theVector)
	RtFloat	N3D_YComp(RtFloat *theVector)
	RtFloat	N3D_ZComp(RtFloat *theVector)
	RtFloat	N3D_WComp(RtFloat *theVector)

Data Conversion Functions Convert between RtPoints and RtBounds

	void	N3D_ConvertBoundToPoints(RtBound theBound, RtPoint * thePoints)
	void	N3D_ConvertPointsToBound(RtPoint * thePoints, RtBound theBound)

Data Copying Functions Efficiently copy 3D data types

	void	N3D_CopyBound(RtBound sourceBounds, RtBound destBounds)
	void	N3D_CopyMatrix(RtMatrix sourceMatrix, RtMatrix destMatrix)
	void	N3D_CopyPoint(RtPoint sourcePoint, RtPoint destPoint)

Intersection Testing Function Test for intersection between line and plane

void

N3DIntersectLinePlane(RtPoint *endPoints, RtPoint planeNormal, RtPoint planePoint, RtPoint *intersection)

Matrix Manipulation Functions Efficient matrix multiplication

	void	N3DMultiplyMatrix(RtMatrix preTransform, RtMatrix postTransform, RtMatrix resultTransform)
	float	N3DInvertMatrix(RtMatrix theTransform, RtMatrix theInverse)

Transformation Functions Transform between coordinate systems

	void	N3DMult3DPoint(RtPoint thePoint, RtMatrix theTransform, RtPoint newPoint)
	void	N3DMult3DPoints(RtPoint *thePoints, int pointCount, RtMatrix theTransform, RtPoint *newPoints)