Can you animate an extrusion in 2016

[Anonymous]

I want to have a character interact with a model.  I can rig and get the character to move in keyframes  but I cannot get the model to extrude with when I try to anumate the extrusion using keyframes/ 

Can it be done? 

[santd · Accepted solution]

Hello @Anonymous,

Extrusions can be animated. The way you would go about doing this is by first performing the extrusion. Then in the INPUTS in the channel box for the Shape you are extruding you will see polyExtrudeFace1 from there use the Local Translate in XYZ and animate those attributes.

I hope that helps.

Cheers,

[Anonymous]

Thank you = that worked indeed

[Anonymous]

I am trying this in 2018 and it does not seem to be working. It just slides the extruded geometry around but doesnt stick to the curve. Is there a different way to get this to work? I need to extrude a long a curve and animate the extrusion going from the beginning to the end.

[mspeer]

Hi!

If you extrude along a curve you need to animate the curve.

[Anonymous]

Thank you, could you elaborate a bit more on how to do this?

[slimboJoe]

Animate the curve that you extruded along instead of animating the resulting extruded geometry.  The extruded geometry will follow the curve around.

[Anonymous]

Sorry, I cant for the life of me figure out how to animate a curve to achieve this extrusion animation. Is there a tutorial you could point me towards, I cant seem to find anything that matches?

Im basically just trying to make a circular chart that starts at 0 and animates all the way to 100 percent around the ring. Similar to how this person had theirs go from 0 to 69% but this was done in C4D.

[slimboJoe]

OH!  OK, a revolve can do that much better.

Make sure CONSTRUCTION HISTORY is on.

So make a LINEAR nurbs curve of 2 points (cvs).  Do this right at the origin, with one point at +1 in the Y direction and one point at -1 in the Y direction (assuming you are looking at it from the front camera).

Now pick the 2 cv's of the curve and translate them in the +Y direction, offsetting them from the transform node.

Now pick the transform node and do a REVOLVE in the Z axis.  Make sure to pick PARTIAL in the revolve options so you can animate it using the START SWEEP or END SWEEP on the resulting node. 

[mspeer]

Hi!

That's very easy.

Just use a Nurbs Circle for extrusion and animate the Sweep, or

start with a Nurbs Torus and animate the End Sweep.

You also can use Visualize -> Create Animated Sweep.

Please read the Maya Online Help / Documentation for more details.

[slimboJoe]

You can do this using a texture as well and animation the coverage.  That method is a little more advanced, though, make sure the UV's are laid out evenly from left to right, up and down or whatever you got going on.

[Anonymous]

THANK YOU BOTH!!!!! Got it working! I really appreciate it! 🙂