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Another camera using a daylight HDRI as the scene environment and an evening HDRI as the reflection override: 


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Photographic

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Parameters

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Sensor and lens

Field of view – Horizontal perspective FOV in degrees.

Focal l. mm – The distance between the lens and the image sensor when the subject is in focus.

Film width mm. – Affects the amount of the depth of field effect. Increasing this value increases the depth of field effect size. This is useful for matching other parameters and output to various real-world cameras. Typical values are 36mm for a full-frame digital SLR and 25.1mm for an APS-C digital SLR.

Zoom factor – Zooms in the view without changing the Filed of View or Focal Length. Higher zoom values result in a stronger Depth of Field. This is useful when matching real-world camera footage.

ISO – Affects image exposure when photographic exposure is turned on. Increasing this value increases exposure and vice versa. Standard values used in photography are: 50, 100, 200, 400, 800, 1600, 3200.

F-stop – Affects the depth of field effect and image exposure (when using photographic exposure). Decreasing this value increases the exposure and the depth of field effect amount, and vice versa. Standard values used in photography are: 0.7, 1, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32.

Shutter

Shutter speed – Affects the image exposure (when using photographic exposure) and length of the motion blur effect. The input value is reciprocal to the result, so to set the shutter speed to 1/125 s, input 125. Longer exposure times increase exposure and motion blur length, and vice versa. Standard values used in photography are: 1, 1/2, 1/8, 1/15, 1/25, 1/30, 1/50, 1/60, 1/125, 1/150, 1/250, 1/500, 1/1000.

Shutter angle – A different way to express the shutter speed, using the movie camera convention of rotary disc shutter angle. The value is an angle out of 360-degree range, for which the shutter stays open. This means that for example, a value of 180 degrees means the shutter is open for half a frame (which is 1/50 s for 25 fps).

Mblur duration – A different way to express the shutter speed, using multiples of the current frame rate (fps). For example, a value of 0.5 means the shutter is open for half a frame (which is 1/50 s for 25 fps).

Shutter offset – Offsets the time interval from which the motion blur effect is generated. The value is defined in frames, with 0 meaning that the center of the interval is exactly in the current frame, -1 meaning that the entire interval happens just before the current frame, and 1 meaning the entire interval happens just after the current frame.

Object visibility

Enable include/exclude list – If enabled, only nodes specified by include/exclude list are visible when rendering using the selected camera.

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Object visibility

Enable include/exclude list – If enabled, only nodes specified by include/exclude list are visible when rendering using the selected camera.

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Photographic Parameters - Examples

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ISO

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titleISO 100

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titleISO 800

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F-stop

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Shutter speed

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Image slider
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titleShutter speed 1/10s

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titleShutter speed 1/40s

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titleShutter speed 1/80s

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DOF & Motion Blur

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Depth of field can be easily toggled on and off from the Corona Camera’s UI, and the focus can be set by picking any object in the scene using the Override focus > Object option. The selected object’s pivot will be used to determine the position of the focus point. This is especially useful if the focus should be locked on a moving object during animation.

Motion Blur

Camera – Enables the motion blur due to camera movements. For a complete motion blur solution, you need to enable geometry motion blur as well.

Geometry – Enables motion blur due to the movement of scene geometry. For a complete motion blur solution, you need to enable camera motion blur as well.

Shutter Curve –Allows to control Motion Blur by using a shutter curve.

Edit – Opens Corona Curve Editor.

For more information please check Camera Motion Blur Shutter Curve.

Depth of Field

Enable – Enables DOF effect.

Override focus – By default, the camera always focuses on its target distance. This override lets you specify another focusing method - either a distance separate from the target distance or focusing on another object pivot.

Value – Defines the focus target distance.

Object – Helper node, position of which specifies the focal plane of the camera. Useful to keep the camera focused on the given object.

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Starting from Corona 12 Update 1, the Depth of Field (DOF) indicator in the viewport was introduced to help visualize a camera's focus range before rendering. It displays near and far planes around the focus point, representing the in-focus area; objects between these planes will appear sharp, while those outside will blur based on the F-Stop setting.

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titleClick here to see DoF viewport indicator behaviour

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The following renders are from exactly the same scene. The volume is made from a simple water plane with displacement and surrounding walls.

 

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The camera is below the water surface:

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The camera is placed on the water surface:

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Fancy Bullets
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  • You can select both the Camera and its Target at the same time by clicking on the connecting line;
  • You can see the Camera clipping planes in the viewport;
  • You can easily resize the Camera’s viewport icon using the Icon size option under the Viewport display rollout;
  • The camera's viewport icon changes according to the currently used VR mode (spherical, cylindrical, etc.);

  • Interactive Rendering - as opposed to the native cameras, Interactive Rendering will not restart when changing the tone mapping parameters of a Corona Camera.

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Exposure, Tone Mapping, Postprocessing

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