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 PositionRaysForFarPosition()
{
// Here we calculate where a ray parallel to the axis meets the mirror
Vector3 mirrorCenter = Mirror.GetCenter();
Vector3 parallelDirection = Mirror.transform.position - Target.transform.position;
parallelDirection.y = 0;
Vector3 parallelHit = GetSphereLineIntersection(Mirror.Radius, mirrorCenter, FarOriginPoint, parallelDirection)[0];
Vector3 focalDirection = Mirror.GetFocalPoint() - FarOriginPoint;
Vector3 focalHit = GetSphereLineIntersection(Mirror.Radius, mirrorCenter, FarOriginPoint, focalDirection)[0];
// Here we calculate the intersection between the rays so as to place the virtual image
ConvergingPoint = CalculateLinesIntersection(
parallelHit, Mirror.GetFocalPoint(), focalHit, focalHit + parallelDirection
);
// And now we set the rays points
ParallelRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { FarOriginPoint, parallelHit, 1.3f * (ConvergingPoint - parallelHit) + parallelHit }
);
Vector3 centerHit = GetSphereLineIntersection(Mirror.Radius, mirrorCenter, FarOriginPoint, FarOriginPoint - mirrorCenter)[0];
CenterRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { FarOriginPoint, ConvergingPoint }
);
FocalRay.GetComponent <TubeRenderer>().SetPositions(
new Vector3[] { FarOriginPoint, focalHit, 1.3f * (ConvergingPoint - focalHit) + focalHit }
);
ParallelVirtualRay.SetActive(false);
FocalVirtualRay.SetActive(false);
}