Use Irradiance Map for faster interior previews. 4. Noise and Quality Control Getting a clean, "grain-free" image without waiting hours. Noise Threshold: Final Renders: Set to 0.01 or lower for crisp results. Drafts: Set to 0.05 to save time.
You often don't need higher GI settings; you need lower from lights and materials. vray render settings for sketchup