pre-visualization
/ˌpriːvɪʒjʊlʌɪˈzeɪʃn/ /ˌpriːvɪzjʊlʌɪˈzeɪʃn/(also pre-visualisation)
noun
The visualization (now especially through the use of computers) of how something will look when created or finished.
Origin
1950s; earliest use found in The New York Times. From pre- + visualization.