3Delight for Katana.

From Katana 3.0 onwards, Katana ships with cutting-edge rendering engine, 3Delight. It’s super-easy to get up and running: simply install it at the same time as you install Katana.

Interactive renders are free, and batch rendering licenses can be purchased as a permanent license with maintenance via the Katana and 3Delight Render bundle.

Focused on artists Katana 3.0

New level of artist focus

Rendering can be a complex problem which, through common workflows, pulls an artist away from working efficiently. The 3Delight team have invested their time and ingenuity to take a different approach. Artists are provided a simpler set of controls and elegant workflows, so they can make intuitive choices supporting their primary goal: the artwork.

Incredible Live Rendering

Live rendering in Katana with 3Delight is a liberating experience. Changes to almost all aspects of global controls, lights, cameras, geometry, shaders, and scene content update quickly during a live render. Start a live render session and just work: the Katana monitor becomes like another viewport.

Simplified Global Controls - DLSettings

Overall render quality and speed is controlled by two decoupled parameters: Samples and Pixel Samples. 3Delight intelligently manages all per ray type samples, leaving the artist more time to focus on lighting.  The DLSettings node also provides a unified location for live rendering optimizations, AOV management, and 3Delight specific workflows.

Art Direction Focused Control Parameters

Art direction needs and the design of modern ray tracing don’t always combine into artist friendly controls.  With 3Delight, complex physical phenomena like volumes have WYSIWYG art directable parameters for transparency and scattering, yet utilize physically correct maths to provide the best of both worlds.

Multi-light - Light Mixing

In 3Delight Display, a lighting artist can click and drag on top of an image to rebalance light intensities of individual or groups of lights.  All edits are fed back to the GafferThree nodes in Katana so changes are captured at the source. This workflow is a complement to live renders as the images can be at final high resolution quality, creating a rich collaborative workflow with art directors and clients.

Artist-Friendly Render Viewer

3Delight Display is the dedicated render viewer that comes with 3Delight.  With contact sheet style AOV displays, OCIO color management and 4K playback, it’s a robust tool in it’s own right. 3Delight Display is a key component in the Light Mixing workflow.

Powerful lighting tools Katana 3.0

Powerful lighting tools

3Delight for Katana has a range of lighting tools that provide a multitude of options for lighting artists. All lights and objects with incandescence utilize the same light sampling technology. Therefore no single lighting tool has limitations of noise, speed, or quality relative to the others.

Typical Lights (Area, Spot, Point and Distant)

3Delight comes with basic lighting tools like distant, point, spot and area lights. The area light contains multiple shape options of square, disc, sphere, and cylinder which can be changed during live renders.  The spot light has barn doors built-in and the point light can be modified to cast physically accurate hard or soft shadows.

Powerful Object-Based Lighting Tools (Mesh and Incandescent)

The Mesh light takes any polygon or subdivision model and turns it into a light source. This is the go-to tool when standard area light shapes don’t match art direction needs.  The Incandescent light controls a scene objects incandescence, even if it’s mapped with textures. CEL statements allow control of complex arrays of objects from one light. The Incandescent light can be used with VDB volumes to illuminate a scene from things like fire and explosions.

Flexible Image Based Lighting Options (Sky and Environment)

3Delight provides two powerful options for light contributions from environment-based sources.  The Sky light is based on the Hosek-Wilkie model to provide analytical recreations of environment illumination with simple artist controls.  The Environment light uses HDRIs for customized accurate scene lighting. Both utilise the advanced 3Delight HDRI sampling technology, providing fast renders, accurate scene shadows, and removing the need for any blurring, or use of lower resolution images.

Light Filters

3Delight for Katana has a simple set of light filters that are a balance of flexibility and performance.  The Decay light filter allows an artist to customize the intensity falloff of the light from the source to its first bounce, with subsequent bounces following the rules of physics.  The Gobo light filter allows an artist to control the output of their light by the use of LDR or HDR slidemaps.

3Delight engine Katana 3.0

Supercharged rendering engine

The core 3Delight engine has been fine-tuned for superfast rendering of displacement, hair, depth of field, motion blur and other complex production requirements. Built to scale linearly by core, you can maximize your hardware investments. A custom, system-level texture memory management system facilitates efficient renders even with large texture datasets.

Unified Sampling

The NSI powered 3Delight is built on top of an intelligent unified sampling approach.  This enables artist friendly controls like a single sampling control to all the shading elements: BRDFs, lights and environments.  Using 3Delight, an artist spends less time fine-tuning technical settings and more time being creative.

Powerful Light Sampling

3Delight has a unique, rapidly converging light sampling algorithm that allows you to render large amounts of light sources (hundreds of thousands) efficiently.  All light sources in 3Delight share this sampling approach.  Therefore the relative cost of each light type is consistent, giving freedom of choice to the artist.

HDR Image Sampling

3Delight's HDRI sampling algorithms converge extremely fast and the pre-blurring of textures is not required.  Illumination and shadow qualities align with the size and intensity of the HDRI content.  Quality HDRI captures directly translate to quality illumination.

Instancing and Memory

Rendering very large scenes utilising instances is a fundamental part of 3Delight’s NSI architecture design.  Render start-up times are fast and memory footprints are low. Both instance source and instance ID based workflows are supported.

Atmosphere and Volumes

3Delight has fast and robust support for Atmosphere and Volume shaders, with all adjustments fully supported in a live render.  VDB Volumes can light a scene via their shader incandescence or by using the Incandescent light in the GafferThree.

3Delight and Katana 3.0 pipeline

Pipeline strength

3Delight combined with Katana is a powerful toolset for your production pipeline. The plugin provides workflows that focus on an efficient import of scene data in multiple formats, robust OSL shading language support, and efficient transfer of image data to the compositing pipeline.

Deep EXRs and Cryptomatte

3Delight has an easy two-click setup to enable deep renders.  3Delight for Katana can export Geometry ID, Scene Path ID, and Surface Shader ID in EXR or Cryptomatte ready EXR files.

OSL Shaders with UI from Metadata

All patterns and shaders in 3Delight are written in OSL.  The display of the shading parameter interfaces in Katana is automatically driven by the OSL meta-data.  Implement your own full shaders, closures, or patterns and use them in either Katana or Maya.

NSI Archives

Some workflows in Maya do not have an easy path for transport to tools like Katana.  The 3Delight NSI Archive is the simplest way to transfer complex setups like Maya Mash to Katana for rendering.  It’s 3Delight’s renderer ready archive format.

Xgen and Yeti

3Delight for Katana has dedicated Xgen and Yeti nodes, as these are very common tools for scattering objects or and hair/fur.  The Yeti node allows for interaction with the cache settings to modify the results on a per sequence or shot basis. The Xgen node allows for the loading, display and rendering of assets generated through Maya’s Xgen toolset.

Modern architecture with Nodal Scene Interface

New modern architecture

Nodal Scene Interface (NSI) is the API that powers the new 3Delight engine. NSI is both a nodal and hierarchical scene description, allowing 3Delight to be incredibly nimble during live rendering, flexible for production needs, quick to develop for and highly adaptable for many DCC programs. The API documentation can be found below.