I recently started a thread asking about material to diffuse natural light coming in the windows at out new studio. After being down there working on it at different times of the day we have decided to do white black out curtains on the majority of the windows as the position of the building to the setting and rising sun makes for some very uneven lighting and not really beneficial to how we will have it set up. I am looking for white or very light gray curtains to hang on a track that will cover 3 sides of the studio. 22 'X 18.75' X 22'. Any recommendations?