An Expression is an operator in Softimage. When an operator's output ports drive a parameter, the parameter is under full control of the operator. As long as the parameter is driven by the operator, the only control you have is the parameter value via the operator's output. The only way to regain manual control of the parameter is to mute or delete the operator.
Matt From: softimage-boun...@listproc.autodesk.com [mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Byron Nash Sent: Monday, November 19, 2012 10:28 AM To: softimage@listproc.autodesk.com Subject: Expression Question I have a simple expression question. I have some custom parameters driving the animation of other objects. I would like to have a check box that should link one parameter to the other. It sort of works but the value does not change when I disable the check box. Here is my expression. cond( AWD_Mower.Mower_Controls.Lock_Wheel_Height == 1, AWD_Mower.Mower_Controls.Front_Wheel_Height, AWD_Mower.Mower_Controls.Rear_Wheel_Height ) In case it's not obvious from the expression, I have two sliders, "Front_Wheel_Height", and "Rear_Wheel_Height". And a checkbox called "Lock_Wheel_Height". According to my expression, shouldn't the "Rear_Wheel_Height" slider be adjustable when the check box is off? I have the expression on the "Rear_Wheel_Height". When I disable the check box, the slider jumps to a fixed value and will not change. When I enable it, it follows the first slider as expected. Thanks, Byron
