The Lights and Cameras tab on the shelf is used to create and place lights and cameras in the scene view.
Shelf tools
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Adds a camera to the scene. You can Ctrl-click the shelf tool to create a camera from the current view.
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Adds a point light to the scene. A point light radiates light equally in all directions from a point in space. It is the most efficient type of light to calculate.
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Adds a spot light to the scene. A spot light casts light from a point in space, in a certain direction. The beam of light is cone shaped, with a radius and falloff at the edges.
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Simulates a light in the shape of a line, rectangle, disk, or sphere.
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Simulates a light with the shape and color of a geometry object you select.
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Simulates illumination from an emissive volume.
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Adds a distant light to the scene. A distant light casts parallel light rays throughout the scene in a certain direction. This is useful for simulating a very distant light source such as the sun.
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Environment Lights provide background illumination from outside the scene.
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Adds an environment light with an automatic sky reflection map.
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Adds an indirect light using photon maps to light an enclosed environment.
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Adds an environment light using caustic photon maps, causing other lights in the scene to cast caustic reflections/refractions.
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Adds an environment light that only shines through geometry you select. This is much more efficient for enclosed environments where the environment light can only enter through a few portals (windows, doors).
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Adds a constant level of light to every surface in the scene (or in the light’s mask), coming from no specific direction.
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Provides parameters to manipulate the interaxial lens distance as well as the zero parallax setting plane in the scene.
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Camera supporting VR image rendering.
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Acts as a camera but switches between the views from other cameras.