Camera Parameters

Parameters

Camera Position

This defines the X,Y,Z coordinates of the camera position

Camera Target

This defines the X,Y,Z coordinates of the camera target location

Orientation

This defines the Heading, Pitch and Bank to correspond with the Camera Target. Note that the Bank value (sometimes called Roll) is independant of the Target location

Zoom factor

This defines the camera zoom factor. The equivalent angle in degrees is given in the Angle of View box, and the equivalent focal length in the box at the bottom of the window (this also relies on the camera negative size).

Update Other Windows

When changing values manually (usually the Terrain window will be used to set these parameters), sometimes other windows are not updated immediately (eg the DirectX preview). Click this button to force an update of these other windows. Note that this is the default button for this form, so by pressing <Enter> in any of the other boxes, this will also update the other windows.

Export Camera

This button allows the current camera location to be exported as a Terragen Script file. This can then be imported into Terragen to quickly match the camera coordinates between the two programs.

Eye Separation

When creating stereo 3D images for viewing with tinted glasses two images are rendered, slightly offset from each other. This field defines the distance between the two shots. To enhance the 3D separation at far distances use a larger value and vice versa. Note that large values will make the foreground more distorted (a bit like trying to view a pencil only 1 cm from your face!)

Focus Distance

Sets the Focal Distance of the camera (ie the distance away from the camera that the lens if focussed at). Note: this parameters is only used when using focal blur or stereo images.

Aperture

Sets the Lens Aperture in f-stops, to control the depth-of-field of the image (when using focal blur).

Note: I have tried to calibrate this as much as possible to a real camera, but the formula is not necessarily 'mathematically'  accurate, so you may need to experiment to find the best setting.

Note: Longer focal length lenses require a larger f-stop (which is actually a smaller aperture in distance terms) to achieve similar depth-of-field to shorter focal lengths.

Note: With POV-Ray the Aperture setting does not affect the total amount of light in the scene (as it does in a real camera), so the shutter speed is not relevant in this situation.

Image Size - width, height

Set the Width and Height in pixels of the final rendered image.

Angle of View

These information boxes give the horizontal, vertical and diagonal angles of view for the current zoom factor and image size.

Equivalent Film

Select a preset film format from the list.

Film Negative Size X,Y

Sets the size of the film negative.

Constrain height to this aspect ratio?

If ticked then the Image Height will be locked to the aspect ratio of the select Film Negative Size (use the Image Width to control the overall size of the image)

Focal Length

Select a Lens type from the list or enter the focal length in mm. The camera zoom factor will alter accordingly.