by Corey Kinard·Modeling
Images © Corey Kinard. Used for product review; image policy.
Exact Decimate earns its place in the Superhive library for a narrow, practical job: decimating to a target triangle count instead of a ratio. It's a GPL add-on from Corey Kinard, supports Blender 4.0 to 5.0, and is a Blender Dev Fund contributor entry.
Exact Decimate: Triangle Count Precision is a Blender add-on for reducing a mesh to a chosen triangle count. Where Blender's traditional decimation works from ratios, which makes hitting an exact count harder on high-resolution meshes such as those prepared for 3D printing, this add-on takes the target count directly.
The workflow is short: select an object, enter your desired triangle count, and hit 'Decimate.' The mesh is optimized to match the specified count or lower, depending on its initial triangle count. To adjust, enter a new count and decimate again, and the model updates. Once the result looks right, apply the created Decimate modifier. After activation, the tool sits under the 'Tool' tab.
Because Exact Decimate relies on Blender's Decimate modifier, it inherits that modifier's limitations. Decimating high-resolution assets can be time-consuming and varies with system specifications — a high-resolution hair model could take around ten minutes — and Blender reruns the process when you apply the modifier. The developer suggests decimating to a more manageable count, such as one million or lower, then using that as a starting point for further reduction. Version 1.7 added quality-of-life changes while keeping the workflow simple.
Exact Decimate: Triangle Count Precision is best for real-time 3D artists, designers, and 3D printing enthusiasts who need meshes reduced to a specific triangle count.
Exact Decimate: Triangle Count Precision is completely free to download and use.
Exact Decimate lists compatibility with Blender versions 4.0 through 5.0. Once the add-on is activated, it appears under the 'Tool' tab in Blender, where you select an object and enter a target count. It builds on Blender's Decimate modifier, so it shares that modifier's behaviour and limitations. If you're running a Blender version outside the 4.0 to 5.0 range, check the developer's page before installing to confirm it works on your setup.
Exact Decimate is found under the 'Tool' tab in Blender once the add-on is activated. From there you select your object, enter your desired triangle count, and hit 'Decimate' to reduce the mesh. If you need a different result, enter a new triangle count and decimate again, and the model updates. When you're happy with it, apply the created Decimate modifier to finalise the reduction. The add-on is currently at version 1.7, which added quality-of-life changes while keeping the workflow simple.
Exact Decimate relies on Blender's Decimate modifier, so decimating high-resolution assets can be time-consuming and depends on your system specifications. As an example, a high-resolution hair model could take around ten minutes. Blender also reruns the process when you apply the modifier. For a smoother workflow, the developer suggests decimating down to a more manageable triangle count, such as one million or lower, applying the modifier, and using that result as a starting point if you need to reduce further.
Exact Decimate is listed as free in this catalog. Licensing and any pricing can change, so check the developer's page for the current terms before you download. The add-on is distributed under the GPL license and is a Blender Dev Fund contributor entry. The creator, Corey Kinard, publishes it on the Superhive marketplace, where you can reach out with questions about the product.
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