Convert 2D images to 3D scenes with GPT 5.2 and Three.js | Alpha | PandaiTech

Convert 2D images to 3D scenes with GPT 5.2 and Three.js

Generate a 3D web scene by uploading a reference image and instructing GPT 5.2 to write Three.js code.

Learning Timeline
Key Insights

Streamlining the Preview Process

If the AI interface has a 'Canvas' or 'Artifacts' toggle, ensure it is enabled before generating. This allows you to preview the 3D render directly in a side window without manually creating and saving an HTML file.

Model Performance Observation

GPT 5.2 currently excels at rendering environmental details (like cherry blossoms) compared to competitors like Gemini 3 Pro, though complex architectural structures (like pagodas) may still lack high-fidelity definition.
Prompts

Image-to-Three.js Generation

Target: GPT 5.2
Create a beautiful 3D scene inspired by this image. Use 3JS in a single HTML file.
Step by Step

Generating and Rendering a 3D Scene from an Image

  1. Upload the reference 2D image to the GPT 5.2 chat interface.
  2. Type the prompt requesting a Three.js scene contained within a single HTML file and submit.
  3. Wait for the model to generate the Javascript and HTML code block.
  4. Click the 'Copy code' button located at the top right of the generated code snippet.
  5. Open a local code editor or plain text editor (e.g., Notepad, TextEdit, VS Code).
  6. Paste the copied code into a new document.
  7. Save the file with an '.html' extension (e.g., '3d_scene.html').
  8. Navigate to the file location in your operating system's file explorer.
  9. Double-click the file to open it in your default web browser and view the rendered 3D scene.

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