The performance of volumes has also been enhanced in RIS, including the ability to overlap volumes and nest volumes of varying properties, and adding support for Maya Fluids.įinally, there is an “intuitive holdout workflow” for capturing render elements like reflections and shadows for compositing into live-action footage, although Pixar’s site doesn’t go into much technical detail. In addition, lighting workflows have been enhanced in RIS mode, with version 20 adding “streamlined” new RIS shaders, including a “user-friendly Daylight Shader”. It includes four specular components, including a “unique backscatter control” for more realistic results. There is also Marschner Hair, a new RIS BxDF shader developed for use on Pixar’s own animated features. New RIS hair and light shaders, better support for volumes in RIS mode The option is intended to provide fast visual feedback when setting up or debugging complex scenes, enabling fast interactive camera positioning, although Pixar also describes it as “useful for turntables and portfolios”. Other key features of RenderMan 20 include Visualizer, a new integrator for viewing a scene as RenderMan ‘sees’ the geometry, showing wireframes, surface parameterisation and normals. RenderMan 20’s new Visualizer integrator shows user a scene as RenderMan ‘sees’ the geometry in RIS mode, speeding up set-up and debugging of complex shots, and enabling fast interactive camera positioning.įaster scene debugging with the new Visualizer view In addition, Pixar has introduced a new physical camera with a range of real-world options including tilt-shift focus, lens distortion, chromatic aberration, vignetting and shutter effects. A cross-frame filtering mode, which takes account of pixels from neighbouring frames, improves performance on animations.
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Pixar says that denoising typically takes 2-4 minutes for a full HD frame, although the extra channels required increase the size of the raw render, so there is an attendant storage cost.ĭenoising works on all object types, and can handle motion blur and depth of field. The new workflow enables users to set a lower sampling value, resulting in a faster but noisier raw render – Pixar cites a speed boost of 2-10x – which Denoise then cleans up as a post-process. The headline addition is the new Denoise feature, jokingly dubbed the “‘make pretty’ button”, which automatically removes noise from raytraced images generated by RenderMan’s new RIS architecture. New Denoise post-process speeds up raytracing workflow Pixar Animation Studios has released version 20 of its Academy Award-winning RenderMan software, introducing major innovations allowing cinematic quality imagery to be created more easily and faster than previously possible.Pixar has released RenderMan 20, the latest version of its production renderer, improving workflow in the new RIS rendering mode, including a new Denoise option and a new Visualizer view for debugging complex shots. Highlights include a game-changing noise reduction technology that directly addresses the problem of image artifacts associated with physically based ray tracers, massively reducing the time needed to deliver completed shots and images. RenderMan 20 also expands the creative choices available to artists and studios through numerous advances in usability including a physical camera, a Visualizer for navigating and inspecting large scenes interactively, expanded shader libraries and presets, and new volume rendering features. A new Marschner hair shader represents the first time Pixar has shipped shading technology specifically developed for use in its feature films, making available truly Pixar quality hair and fur. In addition, RenderMan’s tradition of advanced customization is emphasized through a new light filter API.
Rendering shots for dailies is also faster than ever with new enhancements to RenderMan’s noted image checkpointing, allowing entire shots to be quickly previewed nearly immediately and at full resolution. RenderMan 20 continues to channel the combined technology resources of The Walt Disney Company to the desktop of anyone producing visual effects, animation, and visualization.
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