The Quality of Terrain Data and its affect on believability

Terrain Data

The terrain data is a crucial element, as that provides the recognisable element within the simulation. Resolution is the core element to terrain data. Too low a resolution will lead to a landscape that is only recognisable from a considerable distance away, i.e. from the sky. If this distance is too high then the view will not represent a view that corresponds to the reality of the user’s experience of the location (or potential experience if they have never visited the location), i.e. it is not true first person. As part of the premise of the project is that it represents one’s own experience of weather (or potential experience), then too much deviation from this aim would lead to problems with the project.

Currently, I have terrain data that has a 2m resolution. This leads to a fairly accurate view from around 100m’s away, although, there is a rounding off of buildings. For objects closer than this, then the rounding is fairly obvious. So the question this leaves is:

Is a higher resolution terrain data needed, for sub 100m views, or will 2m resolution data suffice?

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