Layer Config

perspective

Controls which projection is applied by default when creating a new layer. When perspective is set to no, an orthographic projection is applied.
Example: <layer perspective="yes"/> (default)
(defined in GAMGI_MESA_LAYER_PERSPECTIVE)
Allowed values: yes, no (optional)

near, far, top

Set the projection volume dimensions that are applied by default, when creating a new layer. near and near mark the minimum and maximum distance from the observer for objects to be visible. near must be smaller than far.
Example: <layer near="1.0" far="1000.0" top="0.5"/> (default)
(defined in GAMGI_MESA_LAYER_NEAR, GAMGI_MESA_LAYER_FAR 
and GAMGI_MESA_LAYER_TOP)
Allowed values: positive real (optional)
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