Sketchup Model (Mesh) to Smooth and Clean Rhino nurb

Replies to This Discussion

Permalink Reply by David Rutten on October 21, 2014 at 5:34am

Moved from FAQ into Discussion.

Permalink Reply by Chansoo Byeon on October 21, 2014 at 7:55am

Oops, thanks for moving it to the right place!

Permalink Reply by Vicente Soler on October 22, 2014 at 5:19pm

If you want to move the tentacles the best thing is probably to use "rigging". Software for animation usually allows you to model a simple skeleton made out of lines that is associated with a more complex mesh object. Changing the shape of the skeleton will also change the mesh object accordingly.

In this case each tentacle could be a curve, and changing those curves will also change the mesh vertices of the tentacles close to them. Rhino doesn't have this by default, I think the Bongo plugin can do something like this (not sure if with splines).

With Grasshopper you could try to implement this feature yourself. Attached is a crude example of rigging done in Grasshopper.

click on the image for an animation

Attachments:

• rigging01.gh, 1.3 MB

Permalink Reply by jozze on July 8, 2015 at 11:03am

very cool!

Permalink Reply by Nik Willmore on July 8, 2015 at 7:30pm

Brilliant to include the suckers too, taking advantage of having a mesh you can convert to movable vertex points and then back.

Permalink Reply by Nik Willmore on July 8, 2015 at 8:25pm

Ah, well, how easy, a serious C# script hiding in there.

It's called "SimplexNoise" which also has its own Grasshopper component based on work by Ken Perlin according to the help entry, and your C# script is indeed replaceable by SimplexNoise:

Permalink Reply by Vicente Soler on July 9, 2015 at 3:41am

The simplex noise component you mention comes from a plugin http://www.food4rhino.com/project/4dnoise.

The c# script is just in case you don't have the plugin installed, but does the same thing.

The reason for definition was to show the "rigging". The way the skeleton is then moved is up to the user (I used simplex noise as it was a quick way of doing it).

Permalink Reply by Nik Willmore on July 9, 2015 at 3:48am

Ah, it came from a plugin I played with once after I saw the undulating blob videos.

Where would I have found the source code like you did?

Permalink Reply by Vicente Soler on July 9, 2015 at 3:59am

It's in the description of the plugin, in the link I posted above.

Permalink Reply by Nik Willmore on July 9, 2015 at 6:04am

It's in a PDF, I see:

http://webstaff.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf