The best practices for lighting an indoor 3D scene focus on mimicking natural logic, balancing light sources, and aligning with the scene’s purpose to enhance depth and realism.
Start with a key light (primary source) to set direction and mood—e.g., warm, diffused light for a cozy living room or cooler, directional light for a modern office.
Add fill light to soften harsh shadows, using lower intensity than the key light to maintain contrast without over-flattening the scene.
Incorporate rim light to highlight edges (e.g., furniture, character outlines), creating separation from the background and boosting depth.
Keep it simple: build gradually, adjust intensity and color temperature to match the scene’s context, and avoid overcomplicating for natural, immersive results.