I need different convincing virtual environments (2D and 3D) that alter size perception. In particular, for 2D environment or background, when any object is augmented with the 2D environment, people should perceive the object smaller than it really is (or when it is compared to the same object augmented in different environment ) . For the 3D environments, I have a cube in my system and I need to put different textures in each side of the cube in order to make the 3D environment. How the cube looks like. Actually, two cubes one on the right side of the screen and the other one on the left side. Thus, we can make one 3D environment for both cubes which manipulate size perception. Also, we can make one environment for one cube and one for the other and I will bring two identical objects and augmented them with those environments and they should be perceived as two deferent objects in size (one is smaller than the other or one is bigger than the other).

I think of using depth cues in the environments. Think of pictorial depth cues or other techniques.