Constrain to a Path

[TNT]

Is it possible to constrain a bone to a spline in a character and have it stay on the spline as the spline is animated?

What I am thinking is, can a spline path be used to control the relationship of bones for a spine?

[NancyGormezano]

What I am thinking is, can a spline path be used to control the relationship of bones for a spine?

 

Yes - when you select the spline (which is part of a model) to be used as a path - I believe you will have to use a shift click with the eyedropper, or something like that. The spline path can be animated

[TNT]

What I am thinking is, can a spline path be used to control the relationship of bones for a spine?

 

Yes - when you select the spline (which is part of a model) to be used as a path - I believe you will have to use a shift click with the eyedropper, or something like that. The spline path can be animated

 

thanks Nancy

[robcat2075]

After you constrain the bone to the spline, set the "ease" in the path constraint properties to define where on the spline the bone places itself.

[TNT]

After you constrain the bone to the spline, set the "ease" in the path constraint properties to define where on the spline the bone places itself.

 

It looks like using "ease" makes the bone orient like the spline where it sets on it.

I tried to use "compensate" which makes the bones position ok but it orients as thouth it is still on the end of the spline.

 

Your way is what I need.

Thanks,

[robcat2075]

I tried to use "compensate" which makes the bones position ok but it orients as thouth it is still on the end of the spline.

 

You don't want a translate compensate. Turn "Apply before action" ON so you can re orient the bone.

[mtpeak2]

Turn ON "Translate Only" in the path constraint, if you want it to only translate and not orient in the spline direction. Or, use the "rotate offsets" in the constraint to reorient the bone in the position needed.

[robcat2075]

Turn "Apply before action" ON so you can re orient the bone.

 

Correction: this is for if you intend to animate the orientation of the bone in the chor. I can reorient the bone without that while I am still in the relationship that set the path constraint.