Unity has released Ziva VFX 2.2, the latest version of its soft tissue simulation plugin for Maya. The update introduces a new GPU solver, which makes it possible to use current Nvidia GPUs to accelerate solves, and the option to visualise stretch in attachments in the Maya viewport.
A powerful tool for creating stable, accurate simulations of soft tissues
First released publicly in 2017, Ziva VFX is now a staple of visual effects pipelines, with users including DNEG, Scanline VFX and Image Engine. 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. As 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 plugin was acquired by Unity last year along with its original developer, Ziva Dynamics, and is now part of the firm’s new Unity Wētā Tools division.
Ziva VFX 2.2: new GPU solver and viewport visualisation options
The main new feature in Ziva VFX 2.2 is the new GPU solver: a GPU implementation of the Iterative Solver introduced in Ziva VFX 2.0. It’s CUDA-based, and requires a Nvidia GPU from the Turing generation or later: roughly speaking, any Nvidia consumer or workstation card less than five years old. The documentation doesn’t put a figure on the likely speed boost from solving on the GPU, but notes that performance is better when an asset is large and complex. For light assets, the GPU solver will be “less performant”.
Unity has published a blog post with a chart showing the relative performance of the CPU and GPU Iterative Solvers. Even with a four-year-old GPU (a Nvidia GeForce RTX 2080 Super), a realistic human character (left of chart) solves just under 2x faster on the GPU, with smaller speed boosts for more stylised characters.
New viewport visualisation capabilities
In addition, it is now possible to visualise stretching of attachments in the Maya viewport, using user-defined colours to indicate how much each part is being stretched.
Ziva VFX is the world’s leading character simulation solution. The technology features a robust physics solver that enables artists to replicate the materiality and physics of any soft tissue object, including muscles, fat, and skin. This feature, along with the comprehensive collection of out-of-the-box rigging tools, has powered leading CG creatures in titles such as Captain Marvel, Aqua Man, Hellboy, A Dog’s Way Home, Small Foot, and more. Ziva simulation technology, which leverage Intel’s Math Kernel Libraries, accurately solves the relationship between organic soft-tissue (i.e., muscles, fat, and skin) and external objects such as fabric, textiles, metals, and foams. With simulated human models and digitally reconstructed retail designs, companies can effectively identify how products interact and influence the human body, reducing the demand for live fit tests and redundant manufacturing cycles.
Hit any custom shape or silhouette in your simulation with Ziva VFX Art Directable Rest Shapes, complete with rich, physics-adhering secondary dynamics. This high-demand feature enables animation and VFX teams to reduce their corrective workflow and push their characters, digidoubles, and facial work beyond any artistic limitation.
Founded in early 2015 by Academy Award-winner James Jacobs and USC Professor/TR35-winner Dr. Jernej Barbic, Ziva Dynamics is changing the way virtual characters are brought to life. Ziva fundamentally changes the character creation process, while providing greater control, speed, and capabilities to artists of all levels. Emerging artists, award-winning studios, and global brands are all leveraging Ziva’s technology to make world-class characters for movies, TV, retail experiences, and interactive environments. Unity has announced it’d acquired Ziva Dynamics, leader in sophisticated simulation and deformation, machine learning, and real-time character creation.
Owner: Ziva Dynamics
Product Name: Ziva VFX
Version: 2.2 with Assets
Supported Architectures: x64
Website Home Page : https://zivadynamics.com/
Languages Supported: english
System Requirements: Windows & Linux *
Software Prerequisites: pre-installed Autodesk Maya 2019-2023
Size: 9.9 Gb
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