Corona Light

On – Turns on and off the Corona Light.

Targeted – Makes the Corona Light targeted.

Intensity – The intensity multiplier for the Corona Light.

Physical units – Physical units for light emission. The default option (W//sr.m^2)) is in Corona equal to the 'image' units.

Color

Direct input – Allows selecting specific colors using Corona Color Picker.

Kelvin temp – Adjusts the Corona Sun color temperature due to the Kelvin Temperature Scale.

Textmap – Allows to load a textmap.

Shape

Shape – Allows creation of 4 different shapes of the Corona Light - Sphere, Rectangle, Dysk, and Cylinder.

Width/radius – Determines the radius/width of the light source.

Height – Sets a height of the Corona Light (applies only for Rectangle and Cylinder).

Segments – Defines how many segments geometry of the light will have. (min - 3; max - 128) (applies only for Sphere, Dysk and Cylinder).

Directionality – How concentrated the light emission should be around the normal. Higher value creates a spotlight effect.

Emit on both sides – When enabled, the lights also emit on the back side. When disabled, it is black on the backside.

Viewport

Wireframe – When enabled, the light is drawn in the viewport in the wireframe. Has no effect on the rendering.

Gizmo size – Size of the viewport lines/gonioweb indicating direction of the light emission. Set to 0 disabling them.

Light Lister – Allows to manage different Corona Lights present in the scene.

0 object excluded – Excludes objects from illumination/shadow casting for the light.

Shadowcatcher illuminator – Used in combination with shadowcatcher materials. If enabled, this light illuminates the shadowcatcher instead of casting shadows on it. Enable for CG that are being added to the footage and are not present in the 2D backplate/footage.

Prevent black appearance – When on, the light continues to emit light in a focused cone or via an IES profile as before, but it appears as a non-directional when viewed directly from a camera. This fixes the black appearance of directional light when viewed from an angle, which although physically correct, may be surprising and unwanted.

Visibility

Visible directly – Make the Corona Light directly visible to the camera.

Visible in reflections – Makes the Corona Light directly visible in reflections.

 Visible in refraction – Makes the Corona Light directly visible in refractions.

Generate caustics – Enabling this option allows generating caustics.

Occlude other lights – When enabled, this light blocks shadow rays from other lights in the scene. It is geometry that casts shadows when other lights shine at it.

On – Turns on and off the IES light.

None – Allows to load an IES map.

Keep sharp pattern – A fake that modifies the light emission to preserve sharp illumination patterns even with a large area lights. This pattern would otherwise get more blurred with increasing light size.