void calcVertexPoints3d(int x, int y, int vertexA, int vertexB) {
		contourLocateXYZ(x + squareVertexOffsets[vertexA].x, y + squareVertexOffsets[vertexA].y, pointA);
		contourLocateXYZ(x + squareVertexOffsets[vertexB].x, y + squareVertexOffsets[vertexB].y, pointB);
	}