Object for G-Buffer Object ID, but doesn't contribute to render at all?

[Tim in Hollywood]

Hi all,

Is there a way to make a sphere that is completely ignored in every way by the renderer...except that it appears in the Object ID Render Elements pass?

Thanks,
Tim

[Art48]

I'd not go through any hassle. Just re-Render the image with everyting else set as matte object besides the sphere. And I dunno if the ObjectID element has the option, but if it has, make sure to uncheck "affect matte objects"

[svetlozar.draganov]

Hi all,

Is there a way to make a sphere that is completely ignored in every way by the renderer...except that it appears in the Object ID Render Elements pass?

Thanks,
Tim

Such option does not exist, it's best to render it on a second pass either by using matte-approach like Art48 already suggested or to use the new render masks in V-Ray 3.x.