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BLBlender

Objects Center

by MrDesignLGC·Workflow

Images © MrDesignLGC. Used for product review; image policy.

Why we like it

Objects Center earns its place in the superhive library for solving one specific chore cleanly: centering the combined bounding box of a multi-part model against the world. It's a focused utility rather than a broad toolkit, aimed squarely at marketplace prep.

What is Objects Center?

Objects Center is a Blender add-on from MrDesignLGC that handles a narrow but repetitive positioning task. It calculates the common bounding box across multiple selected objects, then moves that combined box to the center or top of the world. Rather than working object by object, it treats the selection as a single group.

The add-on was made for a specific problem faced by sellers on 3D model marketplaces such as cgtrader, where a model's bounding box has to sit exactly above the world. Because a model is often built from multiple sub-objects, doing this by hand is fiddly. Objects Center automates the calculation and placement, which is described as a way for sellers to save time.

It runs on Blender 4.2 through 5.0, is marked Blender Extension compatible, and notes support for the Blender-Internal, Cycles, and Eevee render engines. The add-on is released under the GPL license and comes with documentation. A demo video is also available.

Who is Objects Center best for?

Objects Center is best for sellers on 3D model marketplaces such as cgtrader who need a model's bounding box positioned at the center or top of the world, especially when the model is built from multiple sub-objects.

How much does Objects Center cost?

Objects Center is completely free to download and use.

Key features

  • Calculates the common bounding box of multiple selected objects
  • Moves the combined selection to the center or top of the world
  • Handles models made up of multiple sub-objects
  • Compatible with Blender 4.2 through 5.0 as a Blender Extension
  • Notes support for the Blender-Internal, Cycles, and Eevee render engines
  • Includes documentation and is released under the GPL license

Tags

#Blender#bounding box#world center#workflow#standardization#3D model marketplace#add-on

Frequently asked questions

Which Blender versions does Objects Center support?

Objects Center lists compatibility with Blender 4.2 through 5.0 and is marked as Blender Extension compatible, installing as an add-on. It also notes support for the Blender-Internal, Cycles, and Eevee render engines. If you run a build within that range, the add-on should fit into your setup. For any edge cases outside these versions, or to confirm behaviour on your exact release, check the developer's page for the latest details before installing.

Can Objects Center align a model made of several sub-objects?

Objects Center is built for models split across several sub-objects, which makes centering awkward by hand. It calculates the common bounding box across all the selected objects, treating them as a single group, then moves that combined box to the center or top of the world. This addresses the case where a model needs its bounding box positioned above the world but is assembled from many separate pieces rather than a single mesh.

Does Objects Center help with cgtrader's bounding box requirement?

Objects Center targets sellers on 3D model marketplaces such as cgtrader, where a model's bounding box is required to sit exactly above the world. Because a single model often contains multiple sub-objects, doing this manually is fiddly and time-consuming. The add-on automates the calculation and placement so that repositioning the combined bounding box becomes a single operation, which is described as a time-saver for sellers on that kind of platform.

Is Objects Center free, and how is it licensed?

Objects Center is listed as free in this catalog. Licensing and pricing can change over time, so for the current terms it's best to check the developer's page directly. The add-on is distributed under the GPL license, and the listing notes that the creator is a Blender Development Fund contributor. If you plan to use it in a commercial workflow, reviewing the GPL terms and the developer's page will give you the most accurate picture.

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