# Gamma Topography

Recorded gamma across session time and price, rendered as an interactive landscape of positive ground, negative canyons and the zero boundary.

**Gamma Topography** turns the recorded session gamma field into interactive
3D terrain. Positive gamma rises above the zero plane, negative gamma cuts
below it, and the white line follows the boundary between the two. The blue
line traces recorded price across the landscape.

This is another view of the same session inventory shown by
[Exposure Gradient](https://q-bitf.com/docs/widgets/exposure-gradient), not a price forecast.
If a session has no recorded intervals yet, the widget stays unavailable
instead of drawing a hypothetical future surface.

## Controls

| Control | What it changes |
|---|---|
| **0DTE / 1DTE / All** | Nearest expiry, next expiry, or the full available chain |
| **Positioning** | Open-interest inventory or session-volume positioning |
| **Height** | How strongly quiet and extreme areas are separated visually |
| **Range / opacity** | Price window and terrain transparency |
| **Contours** | Equal-height lines projected across the terrain |
| **Zero coast / plane** | The sign-change boundary and its reference plane |
| **Price path** | Recorded price placed on the terrain |
| **Grid / scale** | Scene guides and the long/short color key |

Drag to orbit, scroll to zoom and right-drag to pan. The widget remembers its
camera separately for each symbol, expiry scope and positioning view. **Reset
view** returns to the default angle.

## How to read it

- **High ground** is a positive-gamma area; **canyons** are negative-gamma
  areas.
- A **stable ridge at one price** shows gamma remaining concentrated there
  across several recorded intervals.
- A **moving coastline** shows the neutral boundary shifting during the
  session.
- Compare the blue price path with the terrain to see which regime price
  actually crossed. The landscape describes recorded positioning and does not
  predict the next path.