Hello everyone,
I have a problem regarding how my movie stimulus is blending with the window background.
I am playing an mp4 video on a subspace of the screen using MovieStim3, while the background of the video is exactly the same colour as the background of my screen (white). During the experiment, the movie is changing both position and orientation on the screen.
Normally, the video blends with the background without the outline of the video being visible. The problem arises when the orientation of the video is not orthogonal to either x y axis, which causes strips to appear on the outline. Using a single frame of the video as an ImageStim under the same conditions does not result in the same problem.
Any ideas how to fix this? Thank you in advance