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S5409: Custom Iray Applications and MDL for Consistent Visual Appearance Throughout Your
Pipeline
DAVE
HUTCHINSON CHIEF TECHNOLOGY OFFICER
DAVE COLDRON PRODUCT DIRECTOR
Today we will cover...
Lightworks, Iray and Iray+
The different types of users and tasks we support
Integration implications from a task/user oriented perspective
AGENDA
LIGHTWORKS ARE 3D RENDERING TECHNOLOGY EXPERTS WE HELP COMPANIES GET THE MOST OUT OF IRAY
LIGHTWORKS SELL
NVIDIA IRAY AND
LIGHTWORKS IRAY+
LIGHTWORKS INTEGRATE AND
SUPPORT CUSTOM INTEGRATION
OF IRAY INTO 3D APPLICATIONS
LIGHTWORKS CREATE CUSTOM
IRAY SOLUTIONS
LIGHTWORKS CREATE
INTERACTIVE CONTENT USING
IRAY TECHNOLOGY
LIGHTWORKS PROVIDE CUSTOM
CLOUD RENDERING SUPPORT
FOR CONFIGURATORS
LIGHTWORKS OFFER FULL
ENTERPRISE LEVEL SUPPORT
INCLUDING DIGITAL SERVICES
WHAT IS NVIDIA IRAY?
NVIDIA Iray is a state-of-the-art physically based photorealistic rendering technology
provided as a toolkit.
Iray provides multiple rendering modes addressing a spectrum of use cases requiring realtime and interactive feedback to physically
based, photorealistic visualizations.
A contemporary and easy-to-use C++ SDK layer to make the integration of Iray technology as easy, fast and simple to support as possible.
fully documented with a range of examples and use-case scenarios
all objects are accessed in the same way, allowing easy UI build out
unique approach to building materials using physically based components that represent the material creation process in the real world
NVIDIA MDL (Material Definition Language) fully supported as standard
WHAT IS LIGHTWORKS IRAY+
Option to tailor the UI to your user requirements, hiding complexities where appropriate
Comprehensive material library and material components
The ability to generate new materials and material thumbnails without writing MDL
Ready-to-use lighting and environment options
All objects are easily streamed in either xml or binary formats, so you can easily save data directly into your own CAD files
Integration support available at all stages, from hotline support and technical consultancy, through to product design and full turnkey implementation
KEY DIFFERENTIATORS OF IRAY+
Visualization Professionals
CAD Professionals
Designers Game
developers
Engineers Scientists Consumers Educators
WHAT TYPES OF USER DO WE CATER FOR?
WHAT TASKS ARE THESE PEOPLE DOING?
Virtual prototyping/simulation
Lighting simulation
Crash testing
Training and documentation
Illustrations and animation for manuals
Consumer product customisation
Online configuration
In-store product experiences
Creating visualisations
Setting up lighting
Applying materials
Preview camera paths/viewpoints
Design evaluation
Material evaluation
Collaborative reviews
Validation and simulation
Lighting studies
Physics and material properties
TODAY WE FOCUS ON FOUR DIFFERENT INTEGRATIONS
VISUALISATION INTEGRATION
Visualisation is usually separate from design stage
Data may be a different and simplified version of the design data
Scalable compute resource desirable
Handling legacy data
VISUALISATION: REQUIREMENTS
Visualisation is the primary goal of the user
Power users understand visualisation algorithms and parameters
Good understanding of materials and lighting in multiple 3D systems
Will use multiple applications to get the job done
Use post processing often
Clearly defined workflow aimed at the highest quality results in the shortest time
May have visual stylistic preferences
Generally tight deadlines and billing by the hour – time is of the essence
VISUALISATION: USER PROFILE
Expose a high level of control in the UI
Fast feedback from settings
Fast final render time
VISUALISATION: APPLICATION DESIGN
VISUALISATION: APPLICATION DESIGN IMPLICATIONS
Implications for UI
Ability to author complex materials quickly
Support for post-process stages
Support for 3rd party plugin software
MATERIAL STRUCTURE
VISUALISATION: CREATING COMPLEX MATERIALS EASILY
Key Iray+ features
Consistent appearance of materials throughout the workflow
Interoperability of materials between different Iray applications
Physically accurate rendering
Support for multiple buffers
32 bit support
Scalability for production render
Interactive feedback
Iray+ for 3ds Max
VISUALISATION: KEY IRAY+ FEATURES
CAD INTEGRATION
Connections to Enterprise data systems
Lot of internal usage and design review
Collaboration between remote teams
Analysis and design verification is key
CAD: REQUIREMENTS
Requirement for scalable compute resources
Compatibility with other visualisation methods (real-time)
Data generally accessible worldwide through central data centres.
Visualisation is not always the users primary goal
Generally not power users who understand visualisation algorithms and parameters
Less understanding of digital content (eg materials and lights) and parameters
Keep data within their CAD application or network
Don’t use post processing
Clearly defined workflow aimed at designing the best product and getting it to market in the shortest possible time
Wants to see accurate representation in different situations
CAD: USER PROFILE
Use of predefined settings
Only expose key parameters for Materials and Lighting
Simple render controls pre-defined to support the particular stages of the design workflow
Use of automation/repeatability
Automated image generation from PLM systems
Hooks into internal animation/explosion
Variation control is key
CAD: APPLICATION DESIGN
CAD: APPLICATION DESIGN
Hooks into internal animation/explosion
consistency of content at an enterprise level
Ability to author content once then publish them company wide as non-editable
Tiered user levels provide the right amount of control for the task
Separate tools aimed at specific tasks eg Viewers, Advanced Material editors, Analysis
Lightweight Viewer
External material editor
CAD System
Key Iray+ features
Consistency of material representation across different apps using MDL
Accuracy of BRDF’s provided by measured materials
Ease of exposing editable parameters via MDL
CAD: KEY IRAY+ FEATURES
Key Iray+ features
Replacement of OGL viewport using interactive ray-traced modes
Iray+ layer simplifies the iray API to create simple controls easily
CPU fallback for both engines
Model is marked up with OpenGL materials
OpenGL materials are driven from MDL
Always get the best looking ray traced viewport
Single material description very important for data consistency
Enhancement of OpenGL Viewport with RayTraced view
Iray Interactive can be used for very fast high quality realtime navigation
As well as fast updates to lighting, geometry and material changes.
CAD: OPENGL/RAY TRACED REPRESENTATION
Realtime
CAD: OPENGL/RAY TRACED REPRESENTATION
Interactive
Model is marked up with OpenGL materials
OpenGL materials are driven from MDL
Always get the best looking ray traced viewport
Single material description very important for data consistency
Enhancement of OpenGL Viewport with RayTraced view
Iray Interactive can be used for very fast high quality realtime navigation
As well as fast updates to lighting, geometry and material changes.
CAD: OPENGL/RAY TRACED REPRESENTATION
Photoreal
Model is marked up with OpenGL materials
OpenGL materials are driven from MDL
Always get the best looking ray traced viewport
Single material description very important for data consistency
Enhancement of OpenGL Viewport with RayTraced view
Iray Interactive can be used for very fast high quality realtime navigation
As well as fast updates to lighting, geometry and material changes.
Iray+ material library (300+) gives great starting points for key CAD markets – auto/marine etc.
Most manufacturers will take these as starting points and create specific palettes of materials for use within whole company and their PLM
Ideally these materials can be used from design through to consumer by inserting the appropriate Iray enabled application into the process at each stage
i.e. NX->Teamcenter->export to Iray Configurator
CAD: PRE-DEFINED CONTENT IS KEY FOR CAD USER
Measured Data can be used just like any other BSDF
Measurement is prone to error at grazing angles
CAD: USING MEASURED BSDF DATA
BRDF measurement provided by Ford Motor Company Data directly from Radiant Zemax Imaging Spheres device
Measured Data can be used just like any other BSDF
Measurement prone to error at grazing angles
Can add fresnel layers to simulate clearcoat finish and address grazing issues
CAD: USING MEASURED BSDF DATA
BRDF measurement provided by Ford Motor Company Data directly from Radiant Zemax Imaging Spheres device
Now nearly everyone in the chain wants high quality
Manufacturers producing film quality animations for daily automated design review.
Automation and repeatable/scriptable processes.
Speed of production, scaling important
CAD: HIGH QUALITY VISUALS
Analysis – higher quality presentation of results
For architecture iray provides accurate lighting analysis including caustic effects
CAD: ACCURATE SIMULATION
Daylight Simulation of a London street at hourly intervals
CONFIGURATORS
In-store or online configuration of consumer products
Automated pre-render of segmented images where there are limited variations
Data input from or integration with a host design system
Live rendering where there are too many variations to pre-render
CONFIGURATORS: REQUIREMENTS
Render on cloud or in-store
Pre-authored data uploaded to a server
Scale across possible large numbers of concurrent users for web based applications
Minimise costs
Easy/automated update of product lines
Appropriate remote compute resource
Real-time is often not good enough quality. How real do you need?
CONFIGURATORS: REQUIREMENTS
Author
Generally will be a design professional working in an industry standard
visualisation, CAD or Games system.
End user
Consumers who have little or no knowledge or interest in the technicalities of the
system. They just want to configure their ring/headphones/car as quickly and
accurately as possible.
CONFIGURATORS: USER PROFILES
Authoring tool
Definition of rules for replacement of geometry
Define combinations that are not valid for commercial, stylistic or manufacture reasons
Support changing product lines
CONFIGURATORS: UI IMPLICATIONS
Configuration system
Browser or simple application based frontend
rendering backend OR pre-rendered images
Interactivity and frame-rate importance. Fast response to change
CONFIGURATOR: USED FOR DESIGN REVIEW
CONFIGURATORS: REQUIREMENTS
Representation of MDL materials with realtime (webGL) materials
Lightweight Cloud API
CPU fallback (cost)
Physically based
Can mix native CAD with Iray+ content at load time, easier to update
CONFIGURATORS: KEY IRAY+ FEATURES AND MDL
Can be image based or interactively generated
Images can be cached as they are generated for different configurations
Create automated Iray image output direct to site from the CAD
OR link Iray directly into the site for rendering
• Photorealism is now commonplace
• High quality visualization is required in all aspects from Design to Consumer
• User requirements are radically different
• Type of integration is defined by user requirements
• Iray+ has the breadth of functionality to address a wide range of very different applications
• MDL provides a way to connect all your workflows with the same look and feel
CONCLUSIONS
