Build a functional Photoshop clone with GPT 5.2 Canvas | Alpha | PandaiTech

Build a functional Photoshop clone with GPT 5.2 Canvas

Create a fully functional web-based photo editing application with layers, brushes, and filters using GPT 5.2's coding and canvas preview features.

Learning Timeline
Key Insights

Layer Specificity Logic

The AI-generated application correctly implements layer isolation logic. When applying filters (like Grayscale), ensure a specific layer is selected; the code successfully isolates the effect to that layer rather than flattening the image or applying it globally.

Model Capability Comparison

When generating complex web apps involving graphics processing (Canvas API), GPT 5.2 shows significantly higher success rates for features like 'Layer Blending Modes' working out-of-the-box compared to Gemini 3 or standard GPT-5.
Step by Step

Verifying AI-Generated Editing Tools & Filters

  1. Select the 'Eraser' tool from the generated application toolbar.
  2. Adjust the brush size slider to a lower setting.
  3. Click and drag over the canvas to verify the erase function removes pixels.
  4. Switch to the 'Move' tool and attempt to drag an image element to a new position.
  5. Click on a specific layer to ensure subsequent actions apply only to that target layer.
  6. Navigate to the 'Filters' section of the interface.
  7. Apply the 'Grayscale' filter and verify it affects only the selected layer.
  8. Press 'Ctrl + Z' (or Command + Z) to test the undo functionality.
  9. Test instantaneous filters by applying 'Invert' and 'Sepia', undoing between each test.
  10. Test variable filters by selecting 'Blur' or 'Sharpen' and observing the visual change.
  11. Adjust the 'Hue' and 'Saturation' sliders to verify real-time color adjustments, then click 'Apply'.
  12. Locate the 'Layer Blending' dropdown menu.
  13. Sequentially select complex blending modes (Multiply, Screen, Overlay, Darken, Lighten, Color Dodge, Hard Light) to verify the CSS/Canvas rendering logic.

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