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A Render Boolean is an object used to cut other objects in the scene, usually to show their interior. The cutting is performed in performed at render time and the cutting object could can be animated, providing more flexibility than cutting in the modeling stage. It This is useful on for architectural or industrial design projects to show the interior of a building or a prototype.
The cutting shape can be a box, an sphere or a plane fully customizable by the user- this is fully customizable. The cutting works in a similar way to the cameras camera's Z-clip feature, except that it is no longer limited to just the cameras camera's near/far planes. The main big advantages advantage, compared to using z-clip of course , is that you can freely move the camera without affecting what gets clipped, ; you can create different sizes and shapes to act as clipping shapes; and that you can freely animate the cutting object.
To convert an objet object into a cutting Render Boolean, simply select it and in its Objects Attributes panel, and choose the desired cutting shape among the Boolean dropbox options.
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Keep in mind that the cutting, just like the Z-clipping, will preserve the original lighting of the scene, so if you want to see the inside of a closed object make sure you introduce emitters add some emitters inside it. |
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Render booleans in action |
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In order to unify the look of this documentation, the screenshots in this chapter were taken from the Studio interface, so they may have a look slightly different look or position in other 3D platforms. |