In Unity3D, using Time.DeltaTime doesn't result in framerate independence -

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i'm trying lerp items across specified distance on determined amount of time. i'm using time.deltatime achieve framerate independence. however, when forcing lag of performance intensive function (drops framerate theoretical 10-15fps), objects move slower should, though should move in constant time, independent of framerate (they take twice long, 4s instead of 2s).

what's stranger calculated fps (1.0f/time.deltatime) stays constant (approx. 66 fps). when show time took lerp finish (adding time.deltatimes), shows 2 seconds (which desired time, actual time took @ least 2x that).

can me figure out what's going on?

    var starttime = 0.0;     while(starttime < 2.0){         yield;         starttime += time.deltatime;         transform.localposition = vector3.lerp(vector3(0.0,0.0,0.0), vector3(0.0,10.0,0.0), starttime/2.0);     }

check in project time settings (under edit->project settings->time) if maximum allowed timestep high enough. value should high enough allow minimum fps want. example, max.timestep of 0.1 alllow 10fps.


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