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This is a simple multiplier for the above Radius effect. This is useful for a quick tweak to the results, especially if you're driving the Radius with a texture and don't want to repaint. It's also useful when transferring a shaded asset between scenes with different scales.

Mode

This changes the technique used to calculate the scattering effect. There are two path-traced versions that are modern choices but may take longer to resolve and an older diffusion model that has often been used for realistic skin. Note that the available parameters are different based on the chosen mode.

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