Efficient Real-Time Rendering of Building Information Models
Paper i proceeding, 2009

A Building Information Model (BIM) is a powerful concept, since it allows both 2D-drawings and 3D-models of buildings or facilities to be extracted from the same source of data. Compared to a general 3D-CAD model a BIM is a different kind of representation, since it defines not only geometrical data but also information regarding spatial relations and semantics. However, because of the large number of individual objects and high geometric complexity, 3D-data obtained from a BIM are not easily used for real-time rendering without further processing. In this paper we present a culling system specifically designed for efficient real-time rendering of BIM’s. By utilizing the unique properties of a BIM we can form the required data structures without manual modification or expensive preprocessing of the input data. Using hardware occlusion queries together with additional mechanisms based on specific BIM-data, the presented system achieves good culling efficiency for both indoor and outdoor cases.

3D graphics

real-time rendering

BIM

Författare

Mikael Johansson

Chalmers, Bygg- och miljöteknik, Construction Management

Mattias Roupé

Chalmers, Bygg- och miljöteknik, Construction Management

PROCEEDINGS OF THE 2009 INTERNATIONAL CONFERENCE ON COMPUTER GRAPHICS AND VIRTUAL REALITY (CGVR09)

97-103

Ämneskategorier

Annan data- och informationsvetenskap

Programvaruteknik

ISBN

1-60132-097-3