Method: double[] GetCameraMatrix(Pt, Pt?)

• Declared in: RT.Modeling.Pt

Declaration

public double[] GetCameraMatrix(
    Pt lookingAt,
    Pt? up = null
)

Summary

Returns a 3×3 matrix that describes a linear transform that will rotate objects in accordance with the orientation of the camera. This can be passed to Pt.ProjectOntoCamera(Pt, double[]) to project 3D objects into a 2D representation.

Parameters

Pt	lookingAt	A point in 3D space that the camera is looking at, assuming the current point is the camera position. Note this is not a vector. If all you have is a vector, add the current point (the camera position) to it first.
Pt?	up	An optional vector specifying the “up” direction of the camera. If omitted, it is assumed to be the y-axis.

Returns

A matrix representing only the rotation. The translation necessary to place the camera is performed by Pt.ProjectOntoCamera(Pt, double[]).