The content produced for fulldome projection is usually made in a frame (the master) with a format corresponding
to a projection of the dome on a plane, commonly the fisheye projection. Due to the distortions involved, looking
at the master does not give a clear idea of the final result once projectedon a planetarium dome. The common
solution when creating and composing content is to go through an iterative process, making successive projections
on a planetarium until the desired result is achieved. However, repeatedaccess to a planetarium is difficult, costly,
and time consuming. So there is a need for an application that can provide theuser with a clear notion of the
final result in the planetarium. In addition, if the application could be used to show content in a small (single
projector) planetarium, like a portable one, its versatility would increase substantially. This paper reports on such
an application: Domeview
