Light creates mystery, ambiguity and causing movement which makes spaces dynamic. Light also creates patterns with shadow. These patterns if created by natural light change direction and colour at different times of day. Elements like pergola cast shadows on exterior and even interior of buildings. Light infuses life into buildings.
Ornamentation also renders character to space.
Space is affected by projections which may cut and divide the space in several numbers. In traditional architecture ornamentation is in form of carved figures, sculptures of stone as we see it in our traditional Indian Temples. In modern buildings ornamentation is minimum and it is in form of juxtaposition of various materials like stone next to wood, plaster next to glass and so on. Colours and textures have visual weight. Objects with more visual weight attract our attention first and take up most of our attention when in sight.