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Renders a Scene to a QImage using OpenGL. Uses the same underyling technology as the WSGLWidget, so a scene visualised in both will be identical (depending on the selected input settings). The user can configure not only the rendering settings, but which of the Cameras in the Scene is to be the viewpoint of the render.

Default label: "WSGL off-screen render"
Member of plug-in: Rendering
Catalogue path: Rendering

Inputs:
Width		int	The width of the output image in pixels
Height		int	The height of the output image in pixels
Settings		CSIRO::Rendering::RenderSettings	The settings to use for the renderer, such as antialiasing or depth-peeling.
Cameras	Array	CSIRO::Rendering::Camera	The Cameras to use as the view source in the render. If no cameras are supplied, the operation will render once for each camera in the scene.
Scene		CSIRO::Rendering::Scene	The Scene to render. Must contain at least one Camera object in order to be rendered.
Background color	Deprecated	QColor	"Background color" is deprecated. Use the "Settings" input instead.
Depth peeling enabled	Deprecated	bool	"Depth peeling enabled" is deprecated. Use the "Settings" input instead.
Number of depth layers	Deprecated	int	"Number of depth layers" is deprecated. Use the "Settings" input instead.
Enable antialiasing	Deprecated	bool	"Enable antialiasing" is deprecated. Use the "Settings" input instead.
Number of samples	Deprecated	int	"Number of samples" is deprecated. Use the "Settings" input instead.
Point size	Deprecated	double	"Point size" is deprecated. Use the "Settings" input instead.
Line width	Deprecated	double	"Line width" is deprecated. Use the "Settings" input instead.
Enable ambient occlusion	Deprecated	bool	"Enable ambient occlusion" is deprecated. Use the "Settings" input instead.
Number of AO samples	Deprecated	int	"Number of AO samples" is deprecated. Use the "Settings" input instead.
AO sample length	Deprecated	double	"AO sample length" is deprecated. Use the "Settings" input instead.
AO strength	Deprecated	double	"AO strength" is deprecated. Use the "Settings" input instead.
AO attenuation	Deprecated	double	"AO attenuation" is deprecated. Use the "Settings" input instead.
Outputs:
Image		QImage	If only a single camera is supplied (or only a single camera exists in the scene, this output will contain the rendered result from this camera's point of view. If more than one camera is used for rendering, this output will contain the last rendered image.
All images		CSIRO::DataExecution::ObjectArray	Contains all images that have been