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cyborg_ty
04-07-2014, 07:57 AM
I have a vehicle with Relativity - Wheel Rotator applied to the wheels. I see the wheels turning as expected in the viewport, but the wheels are not turning in my 180 frame test render. Is there anything needed to have the wheels turning in the rendered output? Am I suppose to bake the Relativity motions in some manner? Is there a better or more reliable way to spin the wheels on a vehicle in Lightwave?

Thanks for your time and consideration.
I posted this question in another path but thought it might be more appropriate here.

ernpchan
04-07-2014, 09:01 AM
Baking the motion would guarantee you get the animation you want during rendering.

Are you rendering this on a render farm? Are you sure the render nodes have access to Relativity?

Mr_Q
04-07-2014, 10:01 AM
I use a much simpler method for wheel turning, FOLLOWER. It's dead simple to setup and control.

cyborg_ty
04-07-2014, 03:49 PM
Baking the motion would guarantee you get the animation you want during rendering.

Are you rendering this on a render farm? Are you sure the render nodes have access to Relativity?

I'm not sure I'm going about 'baking the motion' properly. I right click select the keyframe range and select Baking-> Bake keys' I see the new keys frames. But when I look at the graph editor, I see keys at every frame, but the values dont reflect the rotation On anything (I expect it on the pitch; but all channel values stay flat). I'm new to Lightwave so I guess could be doing something wrong.

I am rendering it on an six node ButterflyNet 5 render farm (Lightwave 11.6). I believe all nodes have access to relativity.

RebelHill
04-07-2014, 03:57 PM
Relativity had a couple different enable/disable switches... one for interactive, one for general... I forget the details. But yes, quickest and easiest is just to bake out the motion... Bake keys in graph editor though, only bakes the extant curves, to bake "addiotnal" motions from modifiers, etc... you need an "active" baker (for want of a better term)... You can find one in the animtools pack here... http://rebelhill.net/html/shares.html (or was it rig tools pack, one or the other).

cyborg_ty
04-07-2014, 05:01 PM
To get the rotation to show in the render, I had to place a key at the end of each wheel's timeline (or at least where the rotation should stop). Then graph editor showed the expected curves (relativity must continuously store/generate the values for when you need them) and everything works (did not have to bake keys).: - )

Since I'm curious and learning the app, I will still take a look at follower (to me Relativity's Wheel Rotator was pretty easy to get going, but I think follower is probably better for following terrains).

I appreciate ALL of the suggestions and the time it took to provide them. Its great to find this 3D community is knowledgeable as well as friendly. :-)

erikals
04-08-2014, 07:27 AM
you can try this plugin also...
http://forums.newtek.com/showthread.php?34373-animate-wheels-an-tracks&p=1014384#post1014384


https://www.youtube.com/watch?v=M4iyUBYMCDM

erikals
04-08-2014, 07:29 AM
I use a much simpler method for wheel turning, FOLLOWER. It's dead simple to setup and control.

sounds nice, does it work if the wheel turns to the left/right like in the video above, etc... ?

Sebasvideo
04-09-2014, 06:38 AM
Oliver Simonnet made an excellent rig of an Aston Martin that can be applied to other vehicles as well, although not automatically, but with patience it's the closest thing I've ever seen to real car driving if you spend some time keyframing it: http://www.lightwiki.com/component/jdownloads/viewdownload/5/176?Itemid=

Danner
04-09-2014, 07:24 AM
If you want to go even deeper:

http://www.youtube.com/playlist?list=PLkxgHcV1H8Pcbspcyf6TG5589AvXrQlaw

erikals
04-09-2014, 09:44 AM
though i like the tricks in that one, it takes over 1 hour to set up, so beware,...