PDA

View Full Version : modify spline node orientation



rdolishny
06-11-2014, 01:14 PM
How can I change the orientation of a spline node? I'm using Rail Extrude and the orientation just seems to do whatever it wants.

Can I see if the orientation of the spline nodes is correct? How do I do that?

ernpchan
06-11-2014, 01:39 PM
You're better off using a tool like this:
https://www.lightwave3d.com/assets/plugins/entry/px_bezier/

rdolishny
06-11-2014, 01:57 PM
That's a beautiful tool. I can't find a control for 'bank' though.

Maybe I'm thinking of seeing another curve tool.

I'm making roller coaster train tracks and they start aligned but by the end the tracks have rotated.

122273

Lewis
06-11-2014, 02:20 PM
just select spline (in poly mode) and hit "f" to flip it.

rdolishny
06-11-2014, 02:29 PM
That's an interesting way to reverse the spline direction... but not what I need. I want to adjust the bank of the spline nodes individually. The bank of the rail extrusion isn't working for me.

Attached is what I want my imaginary tool to look like. I've crudely drawn rotation handles.

122281

Lewis
06-11-2014, 02:37 PM
Nahh, you can't rotate it, you just can FLIP Head/Tail (that's what "f" key does) so that Rail extrude don't get confused (in case you start extruding form tial it'll all be fliped/reversed).

ernpchan
06-11-2014, 02:42 PM
What about this one?
http://www.pictrix.jp/lw/C_WormLt/index.html

Or ths one?
http://www.pictrix.jp/lw/Snake/index.html

The last time I had to do something like this I made a straight rail and then used bones in Layout.

jeric_synergy
06-11-2014, 04:25 PM
Use MULTI RAIL extrusion. That gives you control over both edges.

In general, if orientation is freaking out, more nodes will give you more control.

I'm a little surprised we don't seem to have a full featured spline extrusion method that will meet your needs. What about LWCad, it seems like a magic bullet for many.

+R U matching a real thing, or just free-styling? One way to do this would be:


Use SPLINE CONTROL in RIBBON mode to construct the path, in Layout.
Bake the path (keyframes every frame)
Save the Motion
Load Motion into Modeler
Use PATH EXTRUDE.