Ziva VFX Utilities updated to include Scene Panel 2Ĭhanges to Ziva VFX Utilities, the accompanying set of Python utilities, include Scene Panel 2, a new version of the GUI for viewing, organising and editing Ziva VFX nodes. The release is not backwards-compatible, with the online documentation warning that opening simulation set-ups created in Ziva VFX 2.0 using previous versions of the plugin will cause Maya to crash. In addition, Ziva VFX now supports Maya’s Cached Playback system, used to speed up viewport playback of character animations, although only for users of Maya 2022. Other changes include a new cacheTetMesh attribute for the zTet node, which enables users to cache the tetrahedral meshes Ziva VFX generates from the surface triangle mesh of the tissue.Įnabling caching reduces tetmesh building times, particularly on machines with few CPU cores, at the cost of increasing file size. The update also features a “powerful reimplementation” of the QuasiStatic integrator, often used to generate blendshapes, intended to improve performance and stability. It’s still an experimental feature, and currently only supports the default BackwardEuler integrator: one of four numerical integration methods available to calculate the state of a simulation at the next time step.
Users can also select a new Iterative Solver, provided as an alternative to the default Direct Solver. The zSolver node gets a new solverToleranceFactor control, enabling users to trade the precision of a solve against the time taken to compute it. The first major update since the release of Ziva VFX 1.9 in 2020 – and the first since Ziva Dynamics was acquired by Unity in January – Ziva VFX 2.0 features a number of improvements to simulation peformance. New in Ziva VFX 2.0: improved simulation performance and playback The plugin mimics the stiffness, density and volume preservation of real tissues, including bone, tendons, muscles and skin and supports multiple types of physical damping.Īs well as editing parameters directly, Ziva VFX supports a brush-based workflow making it possible to paint material properties and mesh resolution, and even paint in muscle attachment points and muscle fibres. The update improves simulation performance, adding an experimental new Iterative solver, the option to cache tet meshes generated during simulations, and support for Maya’s Cached Playback system.Ī powerful tool for creating stable, accurate simulations of soft tissuesįirst released publicly in 2017, Ziva VFX is now a staple of visual effects pipelines, with users including DNEG, Scanline VFX and Image Engine.
Ziva Dynamics has released Ziva VFX 2.0, the latest version of its soft tissue simulation plugin for Maya. The firm has just released Ziva VFX 2.0, the latest version of the plugin, improving simulation performance and playback. Ziva Dynamics’ introductory video for Ziva VFX, its soft tissue simulation plugin for Maya.
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