For sample files that go with the video, go here: http://bit.ly/1dQ3ejn
This Masterclass, brought to you by 3D Software Developer Cameron White, will focus on two significant additions to the Bullet Solver in Houdini 13.
The RBD Packed Object is a new object representation that allows large numbers of RBD objects to represented very efficiently, and improves the performance, memory usage, and scalability of the Bullet Solver. This Masterclass also introduces users to this new approach to Bullet simulations, and covers some of the new workflows that are possible (such as using POP nodes to manipulate RBD objects).
The other main topic covered is constraint networks, which allow artists to procedurally create RBD constraints of any type (such as glue, spring, or pin constraints). Some of the topics covered here include creating constraint network geometry, the Connect Adjacent Pieces SOP, and using a SOP Solver to modify or break constraints during a simulation.
For scene files that go with the video, go here: http://bit.ly/J6vvnN
In this masterclass, Senior Mathematician Jeff Lait takes you through the latest Particle features found in Houdini 13. Particles have always played a key role in the creation of VFX in Houdini. With Houdini 13, particles have been fully integrated into the dynamics context for better interaction with other simulation tools. This VEX-based architecture is multi-threaded and allows for speeds up to 10x faster and cached results that allow for scrubbing back and forth in the timeline.
I saw an example of cluster setup in Houdini here on vimeo and wanted to recreate it. Clustering would have helped me in production a couple of times so I wanted to set it up from scratch. I did 3 tests (just to compare times with different numbers of clusters).
From frame 1 - 80:
0 Clusters (Just 1 big box): 1 min. 35 seconds
5 Clusters: 1 min. 13 seconds
10 Clusters: 1 min. 29 seconds
Good to know that the more clusters doesn't necessarily mean faster results.