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Isotropix Clarisse 5.5 Now Available

Early release includes new Angie renderer, enabling CPU and GPU final render based on NVIDIA OptiX; includes full support for OSL allowing greater customization, taking users one step closer to working in real-time.

Isotropix has announced the early access release of Clarisse 5.5 with its new renderer, Angie. Developed from the ground up to integrate into Clarisse’s interactive CG workflow, Angie lets users render on a CPU, GPU, or both combined, for maximum performance and flexibility. Anyone with a Clarisse license, including Personal Learning Edition (PLE) and trial licenses, can download the early access build of Clarisse 5.5.

Angie adds an additional powerful rendering solution to Clarisse, enabling CPU and GPU final rendering based on NVIDIA OptiX hardware-accelerated ray tracing. Delivering speed increases, it works in tandem with or in place of the classic Clarisse renderer, which will remain part of the software. Angie’s use of hybrid rendering advances, along with its simplified controls, gives users at every level fast, easy access to maximum rendering performance and quality that is consistent when rendering on either a CPU or GPU.

“Clarisse is well known for the speed and interactivity of its state-of-the-art CPU rendering engine,” commented Isotropix CEO Sam Assadian. “That’s why leading Hollywood studios choose Clarisse when it comes to rendering their award-winning content. But Angie is a revolution. The CPU can render images on average twice as fast as the classic Clarisse renderer. While on a high-end laptop the GPU is on average six times faster than the CPU, making it twelve times faster than the classic Clarisse renderer. For indies and small studios, Angie puts the power of a small render farm immediately at hand.”

Isotropix continues its commitment to VFX standards compliance with Angie, adding full support for Open Shading Language (OSL) to make Clarisse more open and customizable, which is especially helpful to users developing custom shaders. Angie also adds support for MaterialX, technology created by LucasFilms, that gives allows users to easily import and export look development out of Clarisse, without compromising image fidelity.

Check out the new features:

“At Isotropix we pride ourselves on adopting innovative technologies and industry standards very early on. We were one of the first to integrate open-source technologies like Alembic and USD,” added Isotropix CTO and co-founder Sebastien Guichou. “Now, we’re embracing MaterialX, a game changer for our industry. And we chose to rely on OSL to support it in Angie, not only for its amazing CPU and GPU performance, but also for the freedom OSL can bring to our clients who wish to easily design shaders that seamlessly run on a CPU and GPU.”

Angie also takes Clarisse users one step closer to working in real-time with a new Previz render mode that renders on a GPU up to 20 times faster than a CPU. Along with the NVIDIA OptiX denoiser, this delivers real-time, photorealistic feedback, taking set dressing, lookdev, previz and art direction of production-ready environments to the next level.


“We have been working closely with Isotropix to bring GPU rendering to Clarisse for some time, and firmly believe that Angie represents a big step towards real-time, final-pixel rendering technology,” remarked NVIDIA director of media and entertainment partnerships, John Ison. “Now, with the additional power of the GPU, it has never been easier for so many different types of users to reach this level of photorealism, in near real-time, as they can with Clarisse and Angie.”

Early Access for Clarisse 5.5 with Angie is now available. Existing customers can get a first look at Angie using their current license. New users can start testing with a Clarisse trial or evaluation license, or the PLE. Visit for more information.

Source: Isotropix