# Stitching

The GPU assisted automatic stitching mode (GPU Auto) offers control over the how the algorithm works. The size and resolution of the depth map can be controlled in four increments:

-   Low (default) - 64x32x16
    
-   Medium - 128x64x24
    
-   High - 256x128x32
    
-   Ultra High - 512x256x32
    

> **WARNING**
> Increasing the size and resolution of the depth map will have a large impact on the rendering of Stitched Video entities and may cause frame drops.

Two distance parameters can be set under the Options node, controlling the minimum and maximum distance that the GPU Auto algorithm will generate in the automatic geometry. It can be a good idea to change these distances depending on what the surrounding looks like.

## Manual Adjustments

In some instances GPU Auto will not deliver a perfect stitch. It is possible to manually adjust the stitching in local regions of the scene.

1.  Expand the **Stitching**  **Manual Geometry Adjustment** node in the property tree of the Stitched Video entity in the Scene Graph
    
2.  Use the available options to adjust the stitch geometry
    

It is possible to add many manual adjustment regions. It can be a good idea to first add a large region to a problematic area and then smaller regions on top of the larger one.

> **CAUTION**
> The manual adjustment regions overrides the automatic stitching. **The stitching under a manual adjustment region will not be automatic.**

## Stitch Zone Position Control

It is possible to control where the stitch zone is for overlapping cameras.

1.  Expand the **Stitching**  **Stitch Zone Position Control** node in the property tree of the Stitched Video entity in the Scene Graph
    
2.  Select the cameras with the stitch zone to be adjusted
    
3.  Click **Add Controls for Camera Pair** to add a control
    
    1.  A control for the selected cameras will appear
        
    
4.  Drag the adjustment value to move the stitch zone