work Animation Extractor Houdini HDA to detect rigid objects from an alembic file and extract the animation into the object level. Scale Growth Scale growth visual effect created in Houdini with VEX. Snowflake Modeling 3D physically-based snowflake simulation at the mesoscopic scale, implemented in Houdini using VEX. Holographic Video Decoder A decoder for streaming lightfield-video with 6 degrees of freedom. Pathtracer Implemented the core routines of a physically-based renderer using the pathtracing algorithm. Cloth Simulation Cloth simulation using a point mass-spring system, along with various GLSL shaders. Cloud Shader A GLSL shader to create clouds and simulate different lighting scenarios. Limb Autorigger A Python plugin for Maya to auto-rig limbs. Supports IK/FK blending and stretchy bones. Mesh Editor A tool to create a mesh out of a Bezier surface, upsample with loop subdivision, and visualize Phong shading and environment mapping.