Enable Light Cache in IPR – Enables Light Cache in the IPR. Keep in mind, Light Cache needs to be set as the GI Engine for this option to work. Enabling Light Cache makes the GI identical to production rendering, but may decrease interactivity. It is recommended to keep this option disabled for quick changes to the scene. See the Light Cache GI topic for more information on how this option works.
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Starting with V-Ray 6, the Trace Depth and GI Depth options are removed from the IPR settings.
IPR rendering now uses the local reflection and refraction depths of materials. The Global Max Depth parameter in the Materials Overrides tab can be used to override these values. GI Depth is now controlled by the Brute Force Depth parameter when the GI Engine is set to Brute Force in the Brute Force GI tab.
