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This page provides information on the Object ID Render Element which isolates individual objects with colors or integer values for compositing purposes.

 

Page Contents

 

Overview


In Nuke Object IDs can be added with the VRayObjProp node. Two or more objects in the scene can share the same Object ID.

The Object ID Render Element creates selection masks based on Object ID. This render element either shows each object (by Object ID) in a solid unshaded color, or stores the Object IDs as integer values within the EXR format or V-Ray Image Format file.

More than one Object ID render element can be generated for a single rendering if desired.

 

 


 

UI Path: ||Toolbar|| > V-Ray Menu icon > Render > VRayRenderElement > Type: Object ID


Properties


The Object ID render element has no controllable properties.

 

 

Common Uses


The Object ID Render Element is useful for isolating geometry in a scene based on the Object ID. This means that items can be isolated by use of a matte created from the solid colors within the Object ID pass. 

 

 


Object ID Render Element

 


Matte created in composite by using only the red channel

 

 

 


Original beauty render

 


Glow and contrast added to the composite using matte created from
Object ID Render Element red channel (as a mask in composite)

 

 

Setup


Create a VRayObjProp node and connect it between the object node and the scene node. Set the Object ID to the required value. Note: each number corresponds to a different color.

Create a VRayRenderElement node and set the Type to Object ID.