Here is the complete, merged HTML file. It includes the updated UI with three separate download buttons, the Three.js material override logic for the Normal and Depth passes, and the dynamic camera frustum adjustments so your depth maps use the full 0-to-1 grayscale range. You can save this directly as an `.html` file and open it in your browser. ```html
Hologram capture
Model
Scene
Camera type
Model offset
Preview
Capture