Using Indirect Multipliers
The Indirect Multiplier is a simple but powerful control in Unity that directly affects how bright your bounced light appears in the scene. It works through the Global Illumination (GI) system, adjusting the intensity of indirect lighting without changing your main light sources.
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When the Indirect Multiplier is set below 1, each light bounce becomes dimmer, resulting in darker and more grounded interiors. Setting it above 1 amplifies bounced light, making spaces feel brighter, softer, and more open as light energy increases with every bounce.
One of the biggest advantages is speed. You don’t need to rebalance your entire lighting setup — just rebake the lights after changing the value. This makes the Indirect Multiplier perfect for quick iteration, mood tuning, and artistic control.
Instead of increasing direct light intensity and risking blown-out highlights, you can fine-tune overall brightness and light spread using this single parameter. Used correctly, the Indirect Multiplier helps you achieve realistic, balanced, and visually pleasing lighting with minimal effort.
