Virtually all judgments depend on background, the other objects in the scene, etc. There is usually some distortion of depth. Visualizations use mathematical models to simulate reality. Camera lens models used to create visual scenes may alter perceived depth and distance. This information is lost in pictures and animations.
Computer screens have limited ability to create images .
Computer screens have much lower spatial and temporal resolution than real images. They may not be able to produce small objects or texture, which is a critical cue to depth and surface orientation. They are limited in their ability to render color and cannot create some subtle color variations. Computer screens also cannot produce very high contrasts, so object visibility may be underestimated. Lastly, computer monitors are not very bright and cannot produce light levels similar to a normal daytime.