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# O_NewView Controls

### Use GPU

Open the O_NewView controls. O_NewView renders using the Local GPU specified, if available, rather than the CPU. The GPU may significantly improve processing performance.

If there is no suitable GPU, or the required NVIDIA CUDA drivers are unavailable, O_NewView defaults to using the CPU. You can select a different GPU Device, if available, by opening Nuke's Preferences and selecting an alternative card from the GPU Device dropdown.

Note: Selecting a different GPU requires you to restart Nuke before the change takes effect.

### Views to Use

From the views that exist in your project settings, select the two views you want to use to generate the new view. These views are mapped for the left and right eye.

### View to Build

Select which inputs to use to generate the new view.

Left from Right | Use the pixels from the right view to build a new left view.
Right from Left | Use the pixels from the left view to build a new right view.

#### Pass through other view

Select the Pass through other view checkbox to output both views; the new view and the original source view. If this checkbox is disabled, only the new view is output.

### Occlusions

#### Output occlusions to alpha

Select the Output occlusions to alpha checkbox to output the occlusions to the alpha channel. Occlusions occur when some pixels are not visible in the source view, and therefore cannot be used to create the new view. You can use the alpha channel as an overlay to determine where the occlusion correction is applied.

#### Correction

You can use the Occlusions – Correction control to determine how occluded regions are dealt with.

Use original | Select this option to retain the original view in the occluded regions. For example, if you are using the original left view to build a new right view, the original right view is retained in the occluded regions to help build the new right view.
Expand foreground | Select this option to fill occluded regions by expanding the surrounding area from the original source view. For example, if you are using the original left view to build a new right view, the foreground of the original left view is expanded to help build the new right view. Note: Expanding the foreground may offset the edges.
Use CleanPlate | Select this option to fill occluded areas using a clean background, which is connected using the CleanPlate input. Note: If no image is connected, a Channels missing at CleanPlate input. Please connect RGB input to CleanPlate error is displayed.
None | Select this option to avoid filling the occluded regions.

### Edges

#### Output edges to alpha

You can use the Output edges to alpha checkbox to output the edges to the alpha channel. Use the alpha channel as an overlay to determine where the edge correction is applied.

#### Correction

You can use the Edges – Correction control to determine how image edges at depth boundaries are handled.

Match original | Select this option to match the appearance of the original view at the edges. For example, if you are using the original left view to build a new a right view, the edges are matched from the original right view to help build the new right view.
Match foreground | Select this option to match the edges from the original source view that was used to build the new view. For example, if you are using the original left view to build a new right view, the edges are matched from the original left view to help build the new right view.
None | Select this option to avoid applying edge correction.

#### Adjust Edges

You can use the Adjust Edges control to set the extent of the region where the edge correction is applied. To blend the correction into the background, use a positive value. To restrict the correction to the edges, use a negative value.