Page History
This page provides information on how the latest version of V-Ray handles scenes saved with previous versions of V-Ray.
Overview
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V-Ray 5 5 adds a number of rendering optimization features. However, for compatibility reasons, some features and workflows have been adjusted and are discussed in detail below.
V-Ray for Rhino is not forward-compatible, meaning projects done with V-Ray 5 are not guaranteed to work with V-Ray Next or older versions. If a project is opened using an older V-Ray version than the one it was created with, a prompt message will offer wiping all V-Ray data to ensure file stability.
First-time use
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When opening Rhino for the first time right after installing V-Ray, some or all assets of the scene you load may be missing.
If this happens, ensure V-Ray is set as the current renderer and then close Rhino. All assets load correctly from then on.
Lights (V-Ray 5)
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The Portal Light option in V-Ray Rectangle light is now a legacy option and is no longer exposed in the UI. Rectangle lights in files saved with previous V-Ray versions and this option enabled will still have it available. Regardless, for best performance consider disabling it and using the Adaptive Dome Light option instead.
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