The search results do not contain information specifically regarding "viptrannymodel — solid feature." However, based on the context of the terms "model," "solid," and "feature," it is likely referring to in Computer-Aided Design (CAD) software.
: Models are built using a sequence of operations (features) like extrusions, cuts, or chamfers. viptrannymodel
: Unlike surface models, which are infinitely thin shells, solid models are "watertight" and include internal volume data like weight and density. The search results do not contain information specifically