by Snakyboopface·Workflow
Images © Snakyboopface. Used for product review; image policy.
A compact 2.6 KB add-on, Connect image alpha stands out in the blender_extensions library for automating a repetitive node-wiring task across an entire collection at once. It has recorded 8,595 downloads, and version 1.0.6 added control over which labels are prioritised.
Connect image alpha is a Blender add-on aimed at a common problem: importing assets whose alpha isn't connected, leaving black spots across materials. It links the alpha of image textures to the Principled BSDF shader node for all active materials within a selected collection.
The add-on prioritises connecting image nodes labelled 'alpha', 'base color', 'base colour', 'color', or 'colour', and case does not matter, so a node labelled 'aLpHA' is handled the same way. Version 1.0.6 added the ability to choose which labels are prioritised and extended prioritisation to the Principled BSDF node rather than only image nodes.
Connect image alpha is compatible with Blender 4.2 LTS and newer, requires no special permissions, and is distributed under the GNU General Public License v3.0 or later. At 2.6 KB, it is a small utility focused on one node-wiring task across a whole collection.
Connect image alpha is best for blender users batch-connecting image texture alpha to the Principled BSDF across the active materials in a collection.
Connect image alpha is completely free to download and use.
Connect image alpha is compatible with Blender 4.2 LTS and newer, so it runs on current long-term-support releases and the versions that follow. The current version is 1.0.6, which was published in January 2025 and later updated. If you are on an earlier Blender build, you would need to upgrade to at least 4.2 LTS before installing. For the latest compatibility details and version history, check the developer's page.
Connect image alpha prioritises connecting image nodes labelled 'alpha', 'base color', 'base colour', 'color', or 'colour', and case does not matter, so a node labelled 'aLpHA' still works. From version 1.0.6 you can also choose which labels are prioritised, and the update added prioritising the Principled BSDF node rather than only image nodes. It applies these connections to the alpha of image textures for all active materials within a selected collection.
Connect image alpha can be added by dragging and dropping the add-on into Blender, or by downloading it and using Install from Disk in Blender's extension preferences. The package is small, listed at 2.6 KB, and requires no special permissions to run. Once installed, it works on the active materials inside a selected collection. For download links and setup guidance, refer to the developer's page.
Connect image alpha is listed as free here in the catalog, and it is distributed under the GNU General Public License v3.0 or later. That license governs how you can use, modify, and redistribute the add-on. Because licensing and terms can change over time, check the developer's page for the current details before relying on it in a project. The extension also states that it requires no special permissions to run.
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