| · | Whole region - no region is selected and effect will be apply to whole frame
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| · | Rectangle - region will be apply to rectangular area, that is set down on video preview
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| · | Round rectangle - same as rectangle, but with rounded corners
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| · | Ellipse - region will be apply to elliptic area
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| · | Polygon - region will be apply to polygon, that must be set down on video preview. You may add new points as long as you need and when you need to close the region, you have to click on first inserted point. When region is closed, you may insert new and delete old breaks by right click on any point and choose the action from pop up menu:
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Most of regional effects are dynamic too. So, it may calculate its amount automatically.