'Time' represents (target distance / arm length) and 'value' represents the amount of stretching. So value at time 1 represents stretching amount at the point where distance to the target is equal to arm length. Value at time 2 represents stretching amount at the point where distance to the target is double the arm length. Linear stretching would be achieved with a linear curve going up by 45 degrees. Increase the range of stretching by moving the last key up and right by the same amount. Smoothing in the curve can help reduce elbow snapping (start stretching the arm slightly before target distance reaches arm length). To get a good optimal value for this curve, please go to the 'VRIK (Basic)' demo scene and copy the stretch curve over from the Pilot character. |