The Materials tab allows you to replace the standard Revit materials with more powerful and versatile V-Ray materials, including .vrscan files. This includes the ability to properly scale and rotate V-Ray materials and a quick link to the V-Ray Asset Editor to edit them.
In order to replace a Revit material with a V-Ray one, you first need to create V-Ray materials in the Asset Editor. Those will then become available in the drop-downs next to each material in the Appearance Manager.
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If you don't associate a Revit material with a V-Ray one, the Revit material will be automatically converted to a V-Ray material during V-Ray rendering. It will use the material properties specified in the Revit Asset Browser.
With V-Ray 5, update 1, you can also promote AutoGen materials based on Revit Prism materials as V-Ray ones to the Asset Editor. This equips the AutoGen materials with parameters specific for V-Ray Materials only, thus further expanding the possibilities for modifying the AutoGen materials.
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These settings allow you to control the scale, rotation and offset of all maps that a V-Ray material comprises. Use them after you replace a Revit material with a V-Ray one to match the V-Ray material's map size with your project scale.
Width/Height – Set the width and the height of the V-Ray material.
Rotation– Rotates the V-Ray material (in degrees).
Offset V/H– Controls the V-Ray material offset in the vertical (V) and horizontal (H) direction.
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Replacing Revit material with a V-Ray material
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Each Revit material can be replaced with a V-Ray material from the drop-down menu of the Revit material in the Appearance Manager. Both left- and right-click open the menu. Note that the V-Ray material has to be created in the Asset Editor first.
When a Revit material is replaced, the V-Ray logo in the Appearance Manager becomes darker. In case a V-Ray material is removed from a Revit material, left-click on the logo, restores the last V-Ray material that was assigned to the Revit Material.
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Promote Revit materials as V-Ray ones in Asset Editor
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Revit Prism materials can be promoted and treated as V-Ray materials in the V-Ray Asset Editor. The Promote in Asset Editor (Image Added) button opens the Asset Editor (if it has not been opened beforehand) and sends the AutoGen material to the Materials list, where you can modify it just like any V-Ray material. All V-Ray Material parameters are available for the promoted AutoGen material.
One AutoGen material can be promoted multiple times, and each time a new V-Ray Material is created in the Asset Editor.
Pressing Ctr+Click on the Promote in Asset Editor button automatically assigns the converted V-Ray Material as a replacement to the source AutoGen material.
