[C#] IndexOutOfRange Exception

            Single[] CameraTempCoordXYZVector = new Single[640 * 3];
            Single[] CameraCoordintesXYZ = new Single[640 * 3 * FrameNo];

            Int32 k = 0;

            #endregion

            for (i = 0; i < FrameNo; i++ ) // FrameNo = 60
            {
                virtPict = Array2Array.Array2ArrayCopy(FrameBuffer, i*FrameSize, FrameSize);
                InputImageByteField = virtPict;     // Vsebino VirtPict prekopiram v novo bytno polje

                #region Zakomentirana koda za obdelavo slik
                //virtBitmap = Bmp2Byte.BytesToBmp(virtPict, virtBitmapSize); // Bytna polja zapakiramo nazaj v bitmap
                //virtBitmap.RotateFlip(RotateFlipType.Rotate180FlipX);       // novonastal bitmap še zarotiram za 180°

                //virtBitmap.Save(@"c:\programi\mybitmap" + i + ".png");      // Shranimo posamezen bitmap na disk
                #endregion

                #region Obdelava koordinat
                // Funkcija s katero dobim profil in intenziteto črt (barvo profila)
                TrackLine_Simple(InputImageByteField, ImageAfter1Filter, ImageAfter2Filter, 640, 480*3, DetectedLine, IntensityOnLine);

                Transformation3D(DetectedLine, 640, 1, ProfilVKamero, XCaCoord, YCaCoord, ZCaCoord);
                CameraTempCoordXYZVector = Array2Array.XYZCoordinatesVector(640 * 3, XCaCoord, YCaCoord, ZCaCoord);

                k = 0;

                // DEL KODE, KI ME ZEZA
                for (j = i * CameraTempCoordXYZVector.Length; j < i * CameraTempCoordXYZVector.Length + CameraTempCoordXYZVector.Length; j++ )
                {
                    CameraCoordintesXYZ[j] = CameraTempCoordXYZVector[k]; // TU PRIDE DO LAPSUSA!!!!!!
                    k = k + 1;

                    switch (k)
                    {
                        case 1920: // 640*3 = 1920
                            k = 0;
                        break;
                    }
                }

            }   // End for

for (j = 0; j < 1920; j++)
{
  koda....
}

for (j = 1920; j < 1920 + 1920; j++)
{
  koda....
}

Single[] CameraCoordintesXYZ = new Single[640 * 3 * FrameNo];

CameraCoordintesXYZ[j] = CameraTempCoordXYZVector[k];

Single[] CameraTempCoordXYZVector = new Single[640 * 3];