hou.constant function

Evaluate an animation function for an animated parameter. The return value is always the left keyframe’s outgoing value.

See also: hou.bezier, hou.cubic, hou.cycle, hou.cyclet 18 more , hou.ease, hou.easein, hou.easeinp, hou.easeout, hou.easeoutp, hou.easep, hou.linear, hou.match, hou.matchin, hou.matchout, hou.qlinear, hou.quintic, hou.repeat, hou.repeatt, hou.spline, hou.vmatch, hou.vmatchin, hou.vmatchout

This function is one of the special animation functions that use the current playbar time and information in the parameter’s keyframes, such as in and out values, tangents, acceleration, etc., to evaluate themselves. Because the information needed to evaluate these functions comes from the keyframes, these functions take few or no parameters.

Calling this function from outside a parameter’s expression will raise a hou.NotAvailable exception.