Most users safely ignore the CHOP context, and so can you, for now. CHOPs = CHannel OPerators used to create and modify any type of raw channel data from motion to audio and everything in between. Commonly used to generate sequences of geometry, simulation data and trigger Render tasks that generates sequences of images to disk. ROPs = Render OPerators in side ROP Output directories which are used to create render output dependency graphs for automating output of any type of data and for triggering external processes like rendering. COPs = Composite OPerators in composite type folders. It is a generalized language that uses the same environment and functions anywhere inside Houdini. This has replaced all the VEX specific contexts throughout Houdini. CVEX = Context agnostic Vector Expression Language.
HOUDINI MEANING CODE
VOPs are wrappers around VEX code snippets. VOPs = Vector OPerators inside VOP network nodes are used for everything from building shaders to modifying geometry, volumes, pixels, and more. Some are hard coded with vex and others are folders that you can dive in to and modify the VOPs inside. SHOP = SHading Operators are materials that represent a shader to apply to geometry. Simulations read in geometry from SOPs and passes this data in to the DOP solvers. DOPs = Dynamic OPerators or simulation/solver nodes that are used to construct simulations. Any kind of geometry from polygons to volumes. These are used to construct and modify geometry. SOPs = Surface OPerators or geometry nodes that are inside an object folder. Geometry type Object nodes contain SOP nodes that construct and modify geometry that inherit any transforms at the object level. These Object nodes allow you build transform constraint hierarchies. Object = Object type nodes in an Object type folder. We have acronyms for the network types and the nodes inside these networks. Folders are associated with a network type. You can traverse these folders with the network pane. A Houdini scene is actually composed of network folders and objects inside those networks. This gives you the folder view on the left hand side. First thing, set your desktop to “Technical”.
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