The latest V-Ray 7 update 3 features integrated real-time rendering, allowing architects and designers to visualize ray-traced lighting, materials, and complex geometry directly in the V-Ray viewport via Vantage. This article walks you through the process of working with real-time rendering in V-Ray for SketchUp and shows you how to get instantly started creating.
Key takeaways:
- Zero-lag ray tracing: The new update lets you navigate complex scenes with reflections, displacement, and photorealistic materials that respond instantly to viewport movement.
- Hybrid modeling workflow: Seamlessly switch between a clean toon-style aesthetic and final-quality rendering to maintain modeling precision while viewing ray-traced overlays.
- Effortless high-poly management: Handle thousands of high-poly assets and complex scatters with better performance than the native SketchUp viewport, even without using preview proxies.
Table of Contents:
- Activating the live viewport for instant feedback
- Maintaining precision with the hybrid modeling mode
- Streamlining material iteration and Cosmos integration
- Populating complex environments with assets and scatters
- Refining lighting and atmospheric effects in real time
- Conclusion: The archviz workflow of the future
- FAQs
Real-time rendering has officially arrived in V-Ray 7, update 3, and with it, a major shift in the archviz workflow. You can now explore and render your scene in real time directly in the V-Ray viewport, eliminating the need for constant window switching or exports.
In this article, we’ll show you how to get started with real-time rendering in V-Ray and walk you through some use cases.
What is most impressive about this integration is that no special preparation is required; you simply build your scene as you normally do. Once you have set up basic lighting and materials, you can switch on the live viewport and see the results immediately.
Let’s get started.
P.S. While this demonstration is using the V-Ray for SketchUp workflow, this capability is soon rolling out across all platforms. Keep an eye out for upcoming V-Ray updates 😉
Activating the live viewport for instant feedback
In a typical photorealistic workflow, the final look is often a mystery until the very end.
With V-Ray's live viewport, the gap between modeling and rendering disappears. Once you have established basic lighting and materials, switching on the live link lets the magic start immediately.
- Enable the live viewport: Activate the live link to overlay a rendered image directly onto your standard workspace.
- Navigate with precision: Orbit and zoom as you normally would in SketchUp; the ray-traced render updates in real time with zero lag.
- Evaluate photorealism: Check how reflections, displacement, and photorealistic materials respond to different camera angles instantly.
© Chaos 3D Team
By clicking the Vantage Viewport Render button, you start a real-time rendering session in the viewport
Maintaining precision with the hybrid modeling mode
One of the most persistent challenges in 3D design is blind modeling — making adjustments in a wireframe or shaded view while guessing how they will look in the final render. V-Ray solves this by introducing a hybrid mode.
- Select geometry: When you select an object, make groups, or start drawing, the viewport enters hybrid mode.
- Utilize tool overlays: This mode blends V-Ray rendering with SketchUp outlines, providing a clean toon-style aesthetic that allows for natural modeling while maintaining the ray-traced background.
- Snap and extrude: Use familiar SketchUp tools to snap to existing geometry with high precision, seeing exactly how a new architectural element affects the composition as you build it.
© Chaos 3D Team
Enter the hybrid mode by selecting an object, making a group, or starting to draw
Streamlining material iteration and Cosmos integration
Manual material previews used to require constant window switching and restarts. Now, material adjustments are handled in real time, enabling much faster aesthetic experimentation.
- Live updates: Modify material properties, such as IOR, metalness, and reflection settings, and see the results update immediately in the viewport.
- Cosmos library integration: For high-quality results without creating from scratch, browse the Cosmos library for photorealistic presets.
- Apply and preview: Simply apply a material from the library and deselect the geometry to return to a clean, final render view.
© Chaos 3D Team
Make any adjustments to the scene and see updates instantly reflected in your viewport
Populating complex environments with assets and scatters
Populating a scene with greenery and people often slows down the native SketchUp viewport, forcing designers to use boxes or low-poly proxies that hide the final look. V-Ray's real-time engine handles these high-poly counts effortlessly.
- Place intelligent assets: Use Cosmos assets to add characters or props, and see their correct shadows instantly to understand their effect on your composition.
- Advanced scatters: Apply scatter presets for pebbles, rocks, or forest elements and adjust their density live in the viewport without needing proxy modes.
- Handle high polygon counts: Even with massive geometry imported as a V-Ray scene, the live link maintains high performance, unlike native viewports that might lag.
Refining lighting and atmospheric effects in real time
Finalizing the mood of a project often requires hours of tweaking environment settings. By moving these controls into the real-time viewport, you can polish your look in minutes.
- Dynamic sun positioning: Adjust the sun position and observe the shifting shadows and light intensity in real time to find the perfect hero shot.
- Atmospheric effects: Enable volumetric fog with GI scattering to create god rays and depth without any exports or complicated setups.
- Optical refinement: Test depth of field and lens flares directly in the viewport to evaluate your lighting scenarios and compositions.
© Chaos 3D Team
Adjust the sun position, see shadows in real-time, and test different angles to find the perfect hero shot
Conclusion: The archviz workflow of the future
By shifting to a real-time ray-traced workflow, the SketchUp scene becomes the single source of truth. Every adjustment, from moving a scaling gizmo to changing the tint of a volumetric fog, is applied directly to the scene.
The new hybrid mode not only speeds up the rendering process but also supercharges the standard workflow by making photorealistic rendering a constant part of the design journey.
💡 Read next: The archviz workflow of the future
FAQs
How do I enable real-time ray tracing in V-Ray for SketchUp?
To get started with real-time rendering in V-Ray, activate the live viewport link within the V-Ray for SketchUp toolbar. This uses the Chaos Vantage engine to overlay a ray-traced render directly into your SketchUp workspace, providing instant feedback on lighting and materials without the need to switch to an external window.
What are the benefits of V-Ray’s hybrid modeling mode for architects?
The hybrid modeling mode solves the blind modeling problem. It allows designers to see SketchUp's precise outlines and snapping points overlaid on a photorealistic background. This ensures you can maintain architectural accuracy while simultaneously viewing how shadows and reflections interact with your geometry.
Can V-Ray for SketchUp handle large 3D environments without lag?
Yes, the latest V-Ray update is optimized for high-poly management. It can process thousands of complex assets, such as Chaos Cosmos greenery and people, faster than the native SketchUp viewport. This allows for smooth navigation in dense scenes without the performance drops typically associated with complex 3D scatters.
Does V-Ray 7 support real-time atmospheric effects and lighting?
V-Ray 7.3 allows for real-time adjustments of volumetric fog, GI scattering, and dynamic sun positioning. Designers can visualize "god rays" and realistic depth of field instantly, making it the most efficient way to refine the mood and lighting of an archviz project on the fly.
How do I iterate materials faster using the V-Ray live viewport?
By using the live viewport, any changes made to material properties like IOR (Index of Refraction), metalness, or textures update immediately. When combined with the Chaos Cosmos library, you can drag and drop photorealistic presets and see the final result instantly, significantly streamlining the material iteration workflow.
Is Chaos Vantage required for real-time rendering in V-Ray for SketchUp?
Yes, the real-time ray-traced feedback is powered by Chaos Vantage integration. This setup ensures that your SketchUp scene remains the "single source of truth," where every scaling adjustment or lighting change is rendered with final-frame quality in real time.