Light Gen allows users to generate a series of thumbnail previews of the scene with different lighting scenarios. With a single click, the engine calculates how the scene looks under a cloudy sky, a clear sunset, a bright noon, or even a dramatic night setting.
Right‑click a face → V-Ray → Apply Material from Library . v ray 5 for sketchup
| Engine | Best For | Speed | Quality | | :--- | :--- | :--- | :--- | | | Complex interiors, heavy geometry, production final renders | Medium | Highest (Unbiased) | | GPU (CUDA/RTX) | Interiors with active Light Mix, exteriors, quick iterations | Very Fast (Especially on RTX cards) | High (Slightly more noise at low samples) | Light Gen allows users to generate a series
Instead of manually adjusting sun angles and exposure values, the designer can simply browse through the generated thumbnails, find the mood that best suits the project, and select it. V-Ray 5 then applies those lighting parameters to the scene. It is essentially having a lighting consultant built into the software. | Engine | Best For | Speed |