#Polygon reduction tool how to

Invert the selection to control the background on a separate layer. With the mask refined, you can use it in lots of different ways. For clarity, you can turn the border width off while you create the marker, and then introduce it after. When placing markers, you can adjust the Base and Border width sliders at any time in your workflow. Use Exclude markers where the selection includes too much area. Use Add markers to extend the selection boundaries Again holding Alt to trace the boundary freehand. Use Exclude polygons to trace areas you don’t want included. Relative Width controls each point or each line segment individually. Make adjustments to the entire shape with the Base Width slider. A narrow polygon edge will give Exposure precise information about the location of the selection edge but it will take more time to position them exactly. After making the selection, there are a number of ways you can refine the shape.Īdd more points, or move existing points to work better with the edges.Ĭhange the thickness of the shape to make refinements. The entire selection doesn’t have to be made using the same technique. Refining Selectionsįreehand elements can be mixed with line segments, too. This technique works especially well for selections that don’t have a lot of intricate detail in the edges. This gives you a larger brush tip, which makes tracing the outline much more simple. To make the freehand process quicker, increase the Base Width. To draw the polygon freehand, hold the Alt key while using the tool and trace a simple outline around an object.

#Polygon reduction tool how to

We demonstrate how to perform straight line polygon selections in the Masking Selection Tools video on our website. The Polygon tool is great for making freehand selections in addition to shapes composed of multiple straight lines. And it gives you precise control over what’s selected, including the ability to revisit the mask and make adjustments. It gives Exposure a lot of information about the object you wish to select. If you know exactly what subject you want to select, The Polygon Tool is great to use. Each of them do the same thing, but in a different way to give you better control over different subjects. You can use either the polygon or the markers for creating a mask, or for refining the mask.

The first tool you use to make a selection will dictate the workflow for refining it. The selection tools can be used however you’d like. There are several ways to combine the tools in Exposure when creating selection masks for different subjects. Masking objects in a scene is largely image dependent. This video demonstrates methods of creating selection masks in Exposure.