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# What's New in Ocula 3.0

This page provides an overview of the updates included in Ocula 3.0.

Note: See the navigation bar on the left for links to specific release notes by version.

### O_OcclusionDetector

This plug-in outputs an occlusion mask for the left and right view to define where picture building with disparity is incorrect.

The occlusion mask is required by O_ColourMatcher and the new O_FocusMatcher node to identify image regions where local matching will fail. The occlusion layer can be edited to change how these plug-ins operate.

### O_FocusMatcher

This plug-in lets you rebuild one view from the other to match focus. Matching is based on a combination of image rebuilding and deblurring.

You can also use this node to sharpen out-of-focus images.

There is an optional Kernel input to define the shape of the aperture causing the image blur.

### O_VectorGenerator

This plug-in calculates consistent left and right motion vectors for retiming. The motion estimation algorithm is based on the new disparity engine in O_DisparityGenerator and delivers vectors that maintain stereo alignment.

### O_Retimer

This plug-in lets you speed up or slow down a stereo clip based on the left and right motion vectors calculated by O_VectorGenerator. You can control the new timing of the clip using either the Speed or the Frame control. Both controls are animatable.

### StereoReviewGizmo

This gizmo lets you compare left and right views in various ways. For example, you can use it for testing vertical alignment and colour matches or measuring parallax. You can also convert it to a group to copy and edit the internals. The gizmo is undocumented, but there are tool tips for all the controls.