Path constraint constant speed back and forth

Anonymous — Wed, 14 Jan 2015 07:38:22 GMT

Hi.

I am creating an animation of a light (laser) tracking the inside of a cone frustrum surface (small radius bottom, large radius top). The beam is from a Direct light fixed above top centre. The animated path that the light target is constrained to is a gradually increasing "U" shape based on a section through the cone at any point (see attached).

The motion I need to create is back and forth along the cross section at a constant speed (veryt fast).

Could someone please advise if this is possible?

I am looking at a path constraint for the light target but if I want to animate the % weight along the path it means a lot of keying and estimating times/frames to try and get a constant speed.

Anyone any ideas how to achieve this?

Many thanks,

Re: Path constraint constant speed back and forth

Anonymous — Wed, 14 Jan 2015 11:37:42 GMT

Hi.

I have found that the Out of range type ping-pong does the trick for backwards and forwards.

Cheers,

topic Re: Path constraint constant speed back and forth in 3ds Max Animation and Rigging Forum

Path constraint constant speed back and forth

Re: Path constraint constant speed back and forth