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Overlapping object

Hi, I’m looking for a way to overlap two different stimuli.
One is a visual.GratingStim and the other should be a gray semicircle.

Anyone knows how do do that?

Many thanks in advance

Hi @benefrances, this can be done in Builder, where you set the position coordinates of the two shapes to overlap. Change the order of the shapes in the routine to determine which shape is on top.