a description of the geometry present in the scene like teapots, aliens, and spheres,.Scene descriptions are created through the RenderMan Interface and are typically comprised of: PhotoRealistic RenderMan (PRMan) is a rendering system that generates high-quality 2D images from 3D scene-description information, typically generated by a plugin to a content creation application such as Autodesk Maya. With the new state-of-the-art ray tracing framework optimized for physically-based rendering, RenderMan can deliver unmatched flexibility for any production pipeline. You will get faster renders from the GPU if the texture cache needs to do out-of-core texture lookups.For over twenty-five years RenderMan has been at the forefront of the visual effects revolution, and today RenderMan is a high performance renderer built to tackle the most complicated 3D scenes imaginable. Improved Low-Memory GPU Support - The texture cache has been improved to perform better on GPUs that are memory constrained. These controls help to achieve faster convergence speeds and produce renders that more closely match those produced by RenderMan's previous version, RIS. Rendering Controls - The rendering controls in XPU provide a more granular level of control over the rendering process, allowing artists to set trace depths for both diffuse and specular rays on a per-object basis. Interactivity - Interactivity is a key feature of XPU in RenderMan 25, which prioritizes interactive performance by improving the responsiveness of XPU to camera movements and shader parameter changes, through features such as Progressive Pixels, allowing artists to make quicker and more informed decisions, while providing faster image feedback for refining their choices. These controls include additional features such as depth of field and chromatic aberration, which can be quickly adjusted during interactive rendering. Complete Camera Controls - XPU now supports many controls of pxrCamera. Deformation Motion Blur - XPU now supports full deformation motion blur, enabling studios to use XPU to generate fast quality control renders to give artists the opportunity to validate whether their animation cache was created correctly. Look Development Improvements - The advancements in Look Development in XPU, including support for thin glass and trace subsets, provide better control for artists and help achieve even greater consistency between XPU renders and RIS. Now render pyrotechnics and more with XPU! LPEs & AOVs - Full support for LPEs and arbitrary AOVs in XPU empowers artists with the flexibility and control they need to produce high-quality output for compositing and a variety of production scenarios. Highlights: Volumes - The introduction of volume aggregates in XPU is a major achievement, allowing for faster iteration times during the look development phase, as well as quicker final renders. Finally, many additional enhancements signal a giant leap forward in Pixar’s GPU-accelerated renderer. With XPU's added support for LPEs and arbitrary AOVs compositing workflows are now enabled, which are essential for feature animation and VFX. With support for volumes and points, XPU can now be used for look development beyond hard surfaces. Version 25 delivers significant new milestones for Pixar’s next-generation technology, XPU, to increase its role in production VFX pipelines, while it continues to evolve to become a full production renderer.
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