Blender Extension

v0.12.0 Released Oct 2025

About 404—GEN

404—GEN Consists of Three Components:

1. A Text or 2D-to-3D Generator that operates on Decentralized AI.

2. Geometry and Shader Node Trees that allow users to View/Edit Gaussian Splats in Blender.

3. A Texture Baking Process to Generate Meshes from 3D Gaussian Splats.

Software Requirements

Blender 4.5+ (Download Here)

Installation

1. Download the ZIP file of the most recent release and do not unzip.

Download on Gumroad

2. In Blender, Edit ➡️ Preferences ➡️ Add-ons ➡️ Install from Disk... ➡️ Select the add-on ZIP file.

Blender Preferences Window

If you have a previous version of this add-on enabled, you will need to uninstall it and restart Blender before installing the new version. You may also need to restart Blender after installing the new version.

3. Check the box to enable the add-on, then open the dropdown, click Install Dependencies, and finally click Accept on the Privacy Notice.

Accept You've Read the Notice

Windows users may have to open Blender as admin before installing Dependencies.

Do not change the URL or API key.

4. Type "n" or manually expand the sidebar to reveal the 404 Tab.

Usage

Generate Using Text Prompt:

Type your prompt into the Text Prompt Field and click Generate.

• For best results, describe a single object or character for each generation, rather than an entire scene or room at once. Read more in Prompts.

Generate Using 2D Prompt:

Add your 2D Image Prompt by clicking the Open Image file icon. Navigate to the 2D prompt you wish to use and click Generate.

• For best results upload an high quality image of the object you wish to generate on a white background.

• Maximum Image size is 1024x1024. Read more in Prompts. PLEASE NOTE: You cannot use the Text Prompt Field when using 2D Prompts.

To view the material in object or edit mode, open the Shading Menu (Shortcut z) and select Material Preview (Shortcut 2).

Settings and Mesh Generation

After the splat is generated or imported, the Splat Display Settings and Mesh Conversion dropdown menus will appear.

Applying the geometry nodes modifier will convert to a very high poly mesh that will greatly decrease in quality if simplified. For higher visual quality and lower poly count, use the Generate Mesh button.

Generation Tab with Dropdowns Revealed.

Splat Display Settings Explained

• Opacity Threshold: Gaussian Splats are often generated with fully or partially transparent ellipsoids. Ellipsoids with an opacity below the set threshold will be hidden.

• Display Percentage: Sets the percentage of the entire Gaussian Splat to display.

• Min Detail Size: Determines the amount of detail to be included in the generated mesh. A lower value will generate a higher level of detail.

• Simplify: Simplifies the generated mesh. A higher value will lead to a smoother, more decimated mesh.

• Angle Limit: Adjusts the UV map's angle limit. The default is recommended unless the mesh generates with black/missing spots in the texture, in which case the limit should be lowered.

• Texture Size: The size of the texture in pixels.

• Generate Mesh: This will generate a mesh of the selected Gaussian Splat based on the above values. The mesh will overlap and have the same name as the Gaussian Splat, but they are two separate objects in the collection.

Gaussian Splat on the left and its corresponding Mesh on the right.