+ fixed-near-far - bool
+ If true the near and far values are taken from above, if false
+ near and far are adapted from the scene and visibility.
+ Defaults to true.
+
+ master-perspective
+ Defines a persective projection matrix for use as the leading display
+ in a seamless multiscreen configuration. This kind of perspective
+ projection is zoomable.
+
+ eye-distance - double
+ The distance of the eyepoint from the projection surface in units of
+ the physical-dimensions values above.
+
+ x-offset, y-offset - double
+ Offset of the eyelpint from the center of the screen in units of
+ the physical-dimensions values above.
+
+ left-of-perspective, right-of-perspective, above-perspective,
+ below-perspective
+ Defines a perspective projection matrix for use as derived display
+ in a seamless multiscreen configuration. The projection matrix
+ is computed so that the respective edge of this display matches the
+ assiciated other edge of the other display. For example the right edge
+ of a left-of-perspective display matches the left edge of the parent
+ display. This also works with different zoom levels, leading to distorted
+ but still seamless multiview configurations.
+ The bezel with configured in the physical dimensions of this screen and
+ the parent screen are taken into account for this type of projection.
+
+ parent-camera - string
+ Name of the parent camera.
+
+ reference-points-perspective
+ Defines a perspective projection matrix for use as derived display
+ in a seamless multiscreen configuration. This type is very similar to
+ left-of-perspective and friends. It is just a more flexible but less
+ convenient way to get the same effect. A child display is configured
+ by 2 sets of reference points one in this current camera and one in
+ the parrent camera which should match in the final view.
+
+ parent-camera - string
+ Name of the parent camera.
+
+ this
+ reference points for this projection.
+
+ point - array of two points
+
+ x, y - double
+ x and y coodinates of the reference points in units of this
+ physical-dimensions.
+
+ parent
+ reference points for the parent projection.
+
+ point - array of two points
+
+ x, y - double
+ x and y coodinates of the reference points in units of the
+ parents physical-dimensions.
+
+ texture
+ This tag indicates that the camera renders to a texture instead of the
+ framebuffer. For now the following tags are supported, but obviously
+ different texture formats should be specified too.
+ name - string
+ The name of the texture. This can be referred to by other cameras.
+ width, height - double
+ The dimensions of the texture
+
+ panoramic-distortion
+ This tag cause the camera to create distortion geometry that
+ corrects for projection onto a spherical screen. It is equivalent to
+ the --panoramic-sd option to osgviewer.
+
+ texture - string
+ The name of a texture, created by another camera, that will be
+ rendered on the distortion correction geometry.
+
+ radius - double
+ Radius of string
+
+ collar - double
+ size of screen collar.
+