---
title: "Objects Tab"
canonical: "https://documentation.chaos.com/space/VRAYHOUDINI/113280797/Objects%20Tab"
format: markdown
---
This page provides information on the Objects tab of the V-Ray Renderer settings.


## **Overview**

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<span style="color: #333333">The Objects tab options are grouped in three sub-tabs: Main, Settings, and Material Override.</span>

<span style="color: #333333">The </span><span style="color: #333333">**Main**</span><span style="color: #333333"> tab specifies a list of objects to be exported for rendering. The parameters on this tab determine which objects and lights are included in the .vrscene file.</span>

<span style="color: #333333">The </span><span style="color: #333333">**Settings**</span><span style="color: #333333"> tab controls objects visibility and shadows.</span>

<span style="color: #333333">The </span><span style="color: #333333">**Material**</span><span style="color: #333333"> </span><span style="color: #333333">**Override**</span><span style="color: #333333"> tab provides options to easily override any material in the scene, or apply a completely different one. These options can be helpful for:</span>

- <span style="color: #333333">Debugging the scene by applying a gray shader globally.</span>
- <span style="color: #333333">Adding matte properties to specific objects in the scene using the Wrapper material.</span>
- <span style="color: #333333">Changing object visibility properties by applying the Render Stats material.</span>
- <span style="color: #333333">Changing the object appearance by applying an Override material.</span>
- <span style="color: #333333">Changing/Overriding/Disabling the displacement or subdivision.</span>


## **Main Parameters**

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## **Settings**

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## **Material Override**

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## **Material Overrides Workflow**

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<span style="color: #333333">1. Go to V-Ray Renderer ROP > Objects tab > Material Overrides tab.</span>

<span style="color: #333333">2. Enabled overrides and add a new override using the </span><span style="color: #333333">**+**</span><span style="color: #333333"> button.</span>

<span style="color: #333333">3. Under the Objects parameter, select an object to apply the override material to.</span>

- <span style="color: #333333">This can be a single object, e.g. “/obj/object_A”</span>
- <span style="color: #333333">This can be a set of objects, e.g. “/obj/object_A /obj/object_B”</span>
- <span style="color: #333333">This can be a pattern, e.g. “*” for all objects in the scene</span>
- <span style="color: #333333">This can be an isolated pattern, e.g. “*_A” → this only selects object_A</span>

<span style="color: #333333">For more information, see the </span><span style="color: #333333">[Material Overrides](https://docs-chaos.atlassian.net/wiki/spaces/VRAYHOUDINI/pages/113280399)</span><span style="color: #333333"> tutorial.</span>

> ℹ️ In V-Ray for Houdini, we added a “Referenced Shader” VOP node that can be used to (as its name implies) reference another node – when you do this, you get the entire shading network up to the node that is being referenced. This means that you could reference your final material and use that as an override material, applying e.g. a Render Stats after it and assigning it to the geometry. This works for any VOP node, e.g. textures, displacement, etc.

> ⚠️ The overrides can affect the displacement as well – there is a toggle that specifies whether the original object’s displacement is used, or the one coming from the override material. This has two major uses:
> ⚠️ 
> ⚠️ - Disabling the Displacement for an object by saying **Use Displacement from Override Material** and not supplying any displacement in the override mtl.
> ⚠️ - Changing the Displacement tessellation by applying a new displacement with lower quality settings.