## The Preview Panel

![preview](https://github.com/Drew-S/TerrainGenerator/blob/master/docs/help/images/application-preview.png)

The preview panel is made up of several information displays and widgets that can be interacted with to alter the preview window.

1. Rotates the **sun** around the terrain (turntable style).
2. Rotates the **sun** over the terrain, from 0 degrees (matching the horizon) to 90 degrees (directly above).
3. Rotates the **camera** over the terrain,  from 0 degrees (matching the horizon) to 90 degrees (directly above).
4. Rotates the **camera** around the terrain (turntable style).
5. Zooms the **camera** in and out of the screen.
6. Indicates the location of the **sun**. The location is the direction only, the sun is rendered as though it is far enough away the rays are parallel.
7. The preview of the **terrain** displays the results of the dataflow generation procedure, the output node must be set.
8. Indicates the rotation of the **camera** relative to the terrain, each of the colors represent an axis in the positive direction (green = y+, red = x+, blue = z+).

---

![left mouse drag left/right](https://github.com/Drew-S/TerrainGenerator/blob/master/docs/help/icons/left_drag_right.png)    Left clicking and dragging left/right anywhere in the preview panel will rotate the **camera** around the terrain (4).

![left mouse drag up/down](https://github.com/Drew-S/TerrainGenerator/blob/master/docs/help/icons/left_drag_up.png)    Left clicking and dragging up/down anywhere in the preview panel will rotate the **camera** over the terrain (3).

![scroll wheel](https://github.com/Drew-S/TerrainGenerator/blob/master/docs/help/icons/scroll.png)    Scrolling the mouse wheel zooms the **camera** in and out (5).

![shift left mouse drag left/right](https://github.com/Drew-S/TerrainGenerator/blob/master/docs/help/icons/shift_left_mouse_right.png)    Holding shift, left clicking, and dragging left/right anywhere in the preview panel will rotate the **sun** around the terrain (1).

![shift left mouse drag up/down](https://github.com/Drew-S/TerrainGenerator/blob/master/docs/help/icons/shift_left_mouse_up.png)    Holding shift, left clicking, and dragging up/down anywhere in the preview panel will rotate the **sun** over the terrain (2).