Corona Renderer. What are the best render settings?
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Generally speaking the default settings in Corona Renderer should work well in most situations so there is usually no need to change them. However in special cases additional render settings may be required. Of course there are no “universal” settings that will always give the best result. In most common and common situations the following simple tips can help you:
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⁃ use UHD Cache as a secondary GI solver for interior scenes and scenes in which global illumination is dominant
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⁃ if you are rendering an interior scene with small window openings always use portals if that does not help increase the GI vs. AA balance and / or LSM (Light Samples Multiplier)
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⁃ if you encounter strong noise caused by direct lighting increase the Light Samples Multiplier. If you are faced with a lot of noise caused by indirect lighting (indirect light aka GI this is everything except the first bounce re-reflection of the ray until it fades secondary lighting) try increasing GI vs. AA balance
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⁃ if there is visible noise on glossy reflective surfaces increase GI vs. AA balance
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⁃ if there are bright pixels visible in semi-transparent objects (with non-zero refractive parameter) – reduce GI vs. AA balance
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⁃ If you’re rendering a scene with a strong depth of field (DOF) or motion blur effect reduce the GI vs. AA balance to 4-8
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