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Editing Brush
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− | + | A '''brush''' in [[Mapping|Quake map making]] is the building block of a level. Brushes are placed by the level author in a level editor and used to define the entire geometry of the level, including any [[solid entities]] such as doors, lifts and buttons. | |
− | A '''brush''' in [[Mapping|Quake map making]] is the building block of a level. Brushes are placed by the level author in a level editor and used to define the entire geometry of the level, including any [[ | ||
Brushes are something that are only ever seen during the level creation process, as they are turned into a polygonal mesh during the [[Map_compiling|map compilation]] process. | Brushes are something that are only ever seen during the level creation process, as they are turned into a polygonal mesh during the [[Map_compiling|map compilation]] process. | ||
The shape of a brush is limited in that is can only ever be a convex shape. To make non-convex shapes, level authors must use multiple brushes. The reason for this limitation is that means that brushes can be defined in the .map file as a simple series of planes, the intersections of which result in the vertices of the brush that can be seen in the editor. It also makes the calculations needed during the [[QBSP]] phase of map compilation much simpler, and thus faster to run - something that was very important when Quake was being developed. | The shape of a brush is limited in that is can only ever be a convex shape. To make non-convex shapes, level authors must use multiple brushes. The reason for this limitation is that means that brushes can be defined in the .map file as a simple series of planes, the intersections of which result in the vertices of the brush that can be seen in the editor. It also makes the calculations needed during the [[QBSP]] phase of map compilation much simpler, and thus faster to run - something that was very important when Quake was being developed. |