I gotta make a short sequence of an invisible violinist playing the violin. Now I could just do it easy and move the bow back and forth, but I’d like it to be more real and have the bow tilt as well. As its moved and tilted, essentially the pivot point changes all the time.
What should I look into?
Max 2010 SP1 32/64
Max 2012 32/64
An easy way to be able to key an object with 2 pivot points is to set a pivot on the actual object. Then create a dummy with a different pivot. Link the object to the dummy. Now you can animate the dummy and the object separately.
Look into the LinkedXForm modifier. Add that to your bow and use a dummy (XForm) for your control object. That will control the movement back and forth in local space. Create another dummy (Master), put it at the pivot of the bow and link the XForm dummy to the Master dummy. The master will control the rotation of the bow and the overall position.
You might want to look into using a Rotation List controller for the master dummy rotation too. Then you can animate the rotation in local space instead of world space.
3ds Max 2009 SP1, 2010 SP1
Windows 7 Professional 64-bit
Dual Intel Xeon E5520, 6 GB Ram
NVIDIA GeForce GTX 460 OC
I over thought this with the linkedxform part and the xform dummy, but maybe it’ll be useful to something else.
Gee, every millimeter of bow can potentially be a pivot point for string crossings, this would be a tricky animation in terms of getting it realistically smooth.
I saw a tutorial recently (can’t find it) that used CAT’s CATHDPivotTrans for animated pivots. I don’t have time to look now, but a quick google search found this: http://www.3dworldmag.com/2011/0...otating-pivot-in-3ds-max/ which could be a starting place for researching animated pivots using CAT. When I saw the tutorial, I remember it seemed to work so well, compared to linking-to-dummy way.
I have a solution for you...let me try it and I will post up what I can.
Edit...Here you go, in Max 2012
Move pointcontrol001 in the y and z plane or even x all you want...it stays on the strings.
If you wish the bow to move from string to string as it would when you tilt and play you would need to move the other point to that string.
EDIT2: added a bad path to go with the bad violin.
3ds Max 9 thru 2013
Windows 7 Enterprise 64-bit OS SP1
Dual Intel® Xeon® 6 core X5650 @ 2.67GHz CPU 36GB RAM
NVIDIA Quadro 4000
450GB HDD (x3) and 2TB HDD
3ds Max 2012 Certified Professional Models to Motion