Q3BSP

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Q3BSP stands for 'Quake 3 BSP'. It is a BSP file with version 49 used in Id Tech 3 games and Darkplaces engine.

Quake 3 BSP stores this data lumps:

• Entities - game-related object descriptions.
• Textures - surface descriptions.
• Planes - planes used by map geometry.
• Nodes - BSP tree nodes.
• Leafs - BSP tree leaves.
• Leaffaces - lists of face indices, one list per leaf.
• Leafbrushes - lists of brush indices, one list per leaf.
• Models - descriptions of rigid world geometry in map.
• Brushes - convex polyhedra used to describe solid space.
• Brushsides - brush surfaces.
• Vertexes - vertices used to describe faces.
• Meshverts - lists of offsets, one list per mesh.
• Effects - list of special map effects.
• Faces - surface geometry.
• Lightmaps - packed lightmap data.
• Lightgrid - 3d lightmap used for model diffuse lightning.
• Visdata - cluster-cluster visibility data.