Anybody have an idea of how I can smoothly animate a torus shape starting from a circle to a full ring?  Kind of like the circle drawing a ring as it extrudes?  Right now I am animating the circle shape in the spline modeler, extruding it over a 1 second time frame while at the same time applying a bend modifier to the object over the same 1 second time frame.  It's close, but I can see it bending a bit as it goes along instead of a smooth arc.  Also, with the bend modify I can only do a half ring.  Any better ideas to achieve this?  Thanks!

Chucker

Hi Chuck,

maybe the fastest way is to create an animated alpha mask, but i'll let you know if i found something better.

-TOXE

 

Remember that with the bend modifier you can change the value beyond slider so maybe you can reach a full ring using a value of 360.

-TOXE

 

Quote - Remember that with the bend modifier you can change the value beyond slider so maybe you can reach a full ring using a value of 360.

-TOXE

Hey Davide... thanks for the tip about changing the value beyond the slider - that did give me a full ring.  However, I'm interested in trying the animated alpha channel.  Can you explain how you would approach that techinque to make a torus grow?  Thanks.

Chuck

Hi Chuck,

this is a simple test, you need to UV the torus and usa a simple movie in the alpha channel.

I've Uvmapped the torus with modo because it's too simple, but you can use also Carrara.

Davide

-TOXE

 

...and the files, change the name to .zip

D

 

Ahhh... very easy.  Thanks so much Davide! 

Chuck

You know, every time that someone here ask for something for me is a challenge;-)

-TOXE

 

I appreciate you taking the time to figure it out and posting the files.  Thanks again.

Chuck