Saturday, 10 June 2017

Smoother Reference Frames on Curves

I used this paper on Parallel Transport Reference Frames and some great advice from Andy Nicholas (who did a better version in a tenth of the time!) to make a tool to construct smooth reference frames on curves with twist and rotation. Hipfile (NC) is here.

Monday, 20 February 2017

Houdini Branching Structures

First attempt to do some branching in Houdini. Nothing new really. There's a silent walk through of the main controls on Vimeo here. It's based on some of the concepts in Fabricio Chamon's brilliant Strand Tree ICE compound. It consists of a simple iterative paradigm where at each iteration n number of branches are generated and some kind of multiplier is worked into the length, width, angle etc. This multiplier can be attenuated by a 'reduction/increase' factor per iteration or by using a ramp. There are parameters to control the growth and colour with normalised attributes like distance, u etc and these are all left exposed.  I hope the video makes it clear. The 'to do' list is massive - proper topologically correct junctions (without hacking it with Fuse or Polygons to VDB) would be great! The full .hip file is here. Any tips most welcome - interface or performance enhancements!