xrotation = 0;
yrotation = 0;
zrotation = 0;
vertexx[0] = -1;
vertexy[0] = -1;
vertexz[0] = 1;
vertexx[1] = 1;
vertexy[1] = -1;
vertexz[1] = 1;
vertexx[2] = 1;
vertexy[2] = 1;
vertexz[2] = 1;
vertexx[3] = -1;
vertexy[3] = 1;
vertexz[3] = 1;
vertexx[4] = -1;
vertexy[4] = -1;
vertexz[4] = -1;
vertexx[5] = 1;
vertexy[5] = -1;
vertexz[5] = -1;
vertexx[6] = 1;
vertexy[6] = 1;
vertexz[6] = -1;
vertexx[7] = -1;
vertexy[7] = -1;
vertexz[7] = 1;