if you ‘re asking how to round the corners of the path, create a shape with the polygon shape tool (it should create a path called polystar1) and set the points to 3 in the path options.
then, from the ‘add’ menu to the right of the layer’s ‘contents’ property, choose ’round corners’ to round the path corners and set the roundness as needed.
if for some reason that doesn’t work, make sure the ’round corners’ property is bellow the ‘polystar’ property on the shape layer.
also make sure you are creating a shape layer and not adding a mask to a layer (same tool, but you’ll make a mask on a layer if you have a layer selected and start using the mask/shape layer tool).
if you just wanted to round the corners of the stroke, then that is in the contents>polystar>stroke properties for line join (choose round)
Kevin Camp
Art Director
KCPQ, KZJO & KRCW