protected void PositionRays()
{
// Here we calculate where a ray parallel to the axis meets the mirror
Vector3 mirrorCenter = Mirror.GetCenter();
Vector3 parallelDirection = Mirror.transform.localPosition - Target.transform.localPosition;
parallelDirection.y = 0;
Vector3 parallelHit = GetSphereLineIntersection(Mirror.Radius, mirrorCenter, OriginPoint, parallelDirection)[1];
Vector3 focalPoint = Mirror.GetFocalPoint();
ParallelRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { OriginPoint, parallelHit, 2f * parallelHit - focalPoint }
);
Vector3 centerHit = GetSphereLineIntersection(Mirror.Radius, mirrorCenter, OriginPoint, mirrorCenter - OriginPoint)[1];
CenterRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { OriginPoint, centerHit }
);
// Here we calculate the intersection between the rays so as to place the virtual image
ConvergentPoint = CalculateLinesIntersection(
parallelHit, Mirror.GetFocalPoint(), OriginPoint, mirrorCenter
);
float virtualImgHeight = ConvergentPoint.y - mirrorCenter.y;
// And now we calculate the points for the ray projecting to the focal point
Vector3 focalDirection = Mirror.GetFocalPoint() - OriginPoint;
Vector3 focalHit = GetSphereLineIntersection(Mirror.Radius, mirrorCenter, OriginPoint, focalDirection)[1];
FocalRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { OriginPoint, focalHit, 1.5f * (focalHit - ConvergentPoint) + focalHit }
);
// Now the virtual rays
ParallelVirtualRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { parallelHit, focalPoint }
);
CenterVirtualRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { centerHit, mirrorCenter }
);
FocalVirtualRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { focalHit, focalHit + parallelDirection }
);
}
public void PositionRaysForNearPosition()
{
Vector3 planeNormal = Lens.GetPlaneNormal();
Vector3 lensPosition = Lens.transform.localPosition;
Vector3 parallelDirection = lensPosition - Target.transform.localPosition;
parallelDirection.y = 0;
Vector3 parallelHit = GetPlaneLineIntersection(planeNormal, lensPosition, NearOriginPoint, parallelDirection);
Vector3 antifocusDirection = Lens.GetAntiFocusPosition() - NearOriginPoint;
Vector3 antifocusHit = GetPlaneLineIntersection(planeNormal, lensPosition, NearOriginPoint, antifocusDirection);
ConvergingPoint = CalculateLinesIntersection(
parallelHit, Lens.GetFocusPosition(), antifocusHit, antifocusHit + parallelDirection
);
ParallelRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { NearOriginPoint, parallelHit, Lens.GetFocusPosition() }
);
CenterRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { NearOriginPoint, lensPosition }
);
AntiFocalRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { NearOriginPoint, antifocusHit, antifocusHit + parallelDirection * 0.5f }
);
ParallelVirtualRay.SetActive(true);
AntiFocalVirtualRay.SetActive(true);
CenterVirtualRay.SetActive(true);
ParallelVirtualRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { antifocusHit, ConvergingPoint }
);
AntiFocalVirtualRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { parallelHit, ConvergingPoint }
);
CenterVirtualRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { NearOriginPoint, ConvergingPoint }
);
}
