GPT + Blender

What the Klox Blender add-on does

Once installed, the add-on renders a snapshot or a preview animation of your viewport and sends it straight to a Klox canvas — no export folder, no re-upload, no file juggling between two apps. A local video file can be imported the same way.

That closes the gap in the GPT + Blender workflow: the model builds the scene, Blender renders it, and the render lands one click later in the canvas where it becomes video. The add-on itself does no modeling and never uploads your .blend scene.

Three ways to put GPT in control of Blender

• Computer Use: AI works the interface

  The model moves the cursor, opens menus and types values exactly as you would. Nothing to install, and you can watch every step — but it is by far the slowest and most expensive route, so keep it for complicated one-off builds.

• Blender MCP: straight to the scene

  The MCP add-on lets the model read the scene and call Blender's API directly. Much faster and cheaper than clicking, with one catch: a large request can time out mid-run, so split the build into smaller stages.

• Codex: Python against bpy

  Codex writes a bpy script and Blender executes it. Same mechanism as MCP, lowest cost, and the result is a file you can read, diff and rerun — the best default for everyday work.

• Where AI 3D stops

  Hard-surface and architectural work is where code-driven modeling shines. Faces, creatures and anything organic still come out wrong; generate those with a dedicated 3D model and bring the mesh into Blender to rig and shade.

Installing the add-on

Blender 4.2 or newer, on macOS or Windows. The download is a ZIP — leave it zipped.

Do not unzip the downloaded file. Blender installs the ZIP itself; an unpacked folder will not be recognised.

1. 1

   Open Blender Preferences

   In the top menu bar choose Edit, then Preferences… at the bottom of the dropdown.

   
2. 2

   Add-ons → Install from Disk

   Pick Add-ons in the left column of the Preferences window, then open the dropdown at the top right and choose Install from Disk…

   
3. 3

   Select the downloaded ZIP

   Navigate to where you saved klox-blender-uploader.zip, select it, and click Install from Disk. Close the Preferences window when it is done — the add-on is enabled automatically.

   

Using the add-on

Sign in to Klox in your browser first. The first import asks which canvas to send to, and the add-on remembers that choice until you press Change canvas.

1. 1

   Open the Klox panel

   Back in the 3D viewport, press N — with your keyboard in a Latin input mode — or click the small arrow at the top right of the viewport to expand the sidebar. Choose the Klox tab.

   
2. 2

   Choose a mode and import

   Pick Snapshot, Animation or Local file, set the camera, short-edge resolution and frame range, then click Import to Klox. Your render settings are restored afterwards, whether the export succeeds, fails or is cancelled.

   

• Snapshot

  A PNG of the current camera and frame, at 480, 720 or 1080 on the short edge, keeping your scene aspect ratio. The fastest way to get a greybox frame into an image or image-to-video node.

• Animation

  An H.264 MP4 rendered at 24 fps, from 1 to 720 frames, with no audio. Use it when the camera move itself is what you want the AI pass to follow.

• Local file

  Send a file you already have: PNG or JPEG up to 20 MiB, or MP4 up to 200 MiB. It is uploaded as-is — not re-encoded and not trimmed.

GPT + Blender FAQ

Can GPT actually model in Blender?

Yes, by writing code rather than sculpting. It describes geometry, modifiers, materials and the camera in Python, and Blender executes it. That is why structured objects come out well and freeform organic shapes do not.

What does Astra add over earlier models?

Astra is the generation that can hold a whole Blender scene in its head and keep operating on it — modeling, then shading, rigging and export — without you re-explaining the scene at every step. Its lead over earlier models is clearest on CAD-style 3D construction.

Can Codex drive Blender too?

Yes. Codex runs Blender from the command line with a Python script, which is the cheapest of the three routes and the easiest to repeat. Anything reachable through bpy is reachable this way, including installing Blender itself.

Which of the three should I use?

Start with Codex or MCP. Reach for Computer Use only when the task genuinely needs someone to look at the viewport and react to it, because you pay for every screenshot and every step.

What does the Klox Blender add-on do?

It imports a render — a PNG/JPEG snapshot or an H.264 MP4 preview — into a Klox canvas as a file node. It is not a modeling add-on: it does not upload .blend scenes, change your scene, or start paid generation on its own.

Do I need an API key for the add-on?

No. You sign in on the Klox site in your browser, and the add-on stores only the site address and the canvas you last imported into. Render settings are restored after every export, whether it succeeds, fails or is cancelled.

What are the current limits of AI 3D?

Topology quality, organic form and anything that needs artistic judgement. Expect to clean up the mesh, and expect long or complex builds to be split into stages rather than produced in one run.

What happens after the render reaches the canvas?

It becomes an ordinary node you can wire into image or video generation — turn a still into a moving shot, restyle a pass, or cut several renders together into one edit on the same canvas.