<b>Additional actions:</b> Increase Sudivision Level, Decrease Sudivision Level. You can hold <strong>Shift</strong> while dragging a handle to turn grid snapping off.<br>
<td><b>Align floor / Align ceiling dropdowns</b> let you choose how the heights of created sectors are <ahref="#interp_modes">interpolated</a>.<br>
<b>Brightness dropdown</b> let you choose how the brightness of created sectors is interpolated.<br>
<b>Subdivisions</b> control how many subdivisions bridge has. You can also use "Increase Subdivisions" and "Decrease Subdivisions" actions to control this using keyboard shortcuts.<br>
<br>
Activate <b>Mirror mode</b> to mirror paired handle movement:<br>
<td><b>EaseInOutSine interpolation</b> - interpolates heights using sinusoidal (sin(t)) easing in/out.</td>
</tr>
</table>
<h2>Setting lower/upper textures:</h2>
If you are going to connect sectors with different ceiling and/or floor heights, you'll generally want to set upper and/or lower textures. To do this, set upper or lower textures to linedefs, which will be used to define bridge shape. <br>Let's say we want to make a stairway out of these lines:
Instead of setting them all by hand, set upper and lower textures of lines, which will be used to create this shape (you need to set them only to one linedef out of pair):