Automotive and Transportation real-time rendering revolution by Unity3D High Definition Render Pipeline

Accelerate innovation using Unity3D plus PiXYZ’s best-in-class CAD data solutions

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The HDRP approach

Considering the last trends in real time rendering productions and how the responsivity in terms of prototypes validation is needed by design companies, Unity introduces the HDRP technology to compete with the stunning graphic impact of Unreal Engine.

The Lexus LC 500 teaser part I,  at top of the page, is a demo released by Unity mixing the HDRP technology and CAD optimising tools released by PiXYZ.

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The principles of the HDRP (High Definition Render Pipeline) are:

  • Physically based rendering
  • Unified and coherent lighting
  • Features independent of the rendering path.

Physically based rendering relies on three pillars: Lighting, Material, and Camera. Lighting and material rely on physical interaction and there should be a clear decoupling between them to get a coherent result under various lighting conditions. The camera interprets how the resulting lighting will be displayed on the screen. The goal is to make it easier for the artists to achieve a plausible result.

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Unified lighting means that all objects and participating media in the scene should receive the same lighting. There shouldn’t be any distinction between opaque, transparent or volumetric materials. Coherent lighting means that a material must interact correctly with the lighting produced by any light sources (reflection probe, area lights…), even when modified by a Decal for example. This results in a more coherent look.

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There are various rendering passes used in real-time rendering: Deferred/Forward, SinglePass/Multipass, Tile/Cluster… It is common in game development that the selection of a rendering path limits the set of graphics features. For HD RP we have tried to get the same set of graphics features whatever the rendering path. The result is that the choice of a rendering path is solely based on performance and not on which features are required for a game. More on HDRP technology here.

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HDRP and for Automotive
and Transportation


Lexus LC 500 teaser part II

To boost the presence in the Automotive and Transportation market, Unity has partnered with PiXYZ Studio, a company that has released a complete software suite to manipulate, optimise and import CAD data format into game engines, included Unreal Engine.

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The Lexus LC 500 teaser  is the result of a collaboration between the companies teams and much more about the project making of can be read here.

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Attending the summit had been possible to discover how industry trailblazers are using the latest real-time, 3D and digital technologies to revolutionise design processes, improve collaboration, accelerate iterations, and completely transform vehicle marketing and sales. Highlights will include:

  • 15+ interactive sessions
  • Product demos and videos
  • Unity AutoTech zone on the show floor
  • Industry networking event.
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In a nutshell the tech specs on the Lexus LC 500 teaser production.

Technical summary

  • PiXYZ Studio
  • Single point light interior lighting
  • Unity 2018.2b1 (2018.2b8 used for screenshots)
  • Rendered at 4K, downsampled to 1080p
  • HDRP renderer
  • Rendered at 1080p in real-time on an Asus laptop (with a GeForce GTX 1080)
  • Post-Processing Stack v2: Screen Space Ambient Occlusion, Bloom, Chromatic Aberration, Color Grading, Depth of Field, Vignette, Motion Blur, Temporal Anti-Aliasing
  • 80-140+ FPS at HD 1080 (depending on the shot)
  • Cinemachine for camera animation and depth-of-field control
  • Clearcoat shader
  • HDRI lighting for exterior
  • Screen Space Reflection (Part II only)
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Unity Asset Store packages used for Part II

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Unity Industry Bundle

The Unity Industry Bundle provides you with productivity tools that enable you to immediately begin creating real-time experiences using your design data. Use the tools to import CAD data, prepare interactive experiences and publish to multiple platforms. Talk to a Unity Expert.



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