Camera

### 10.1.6 Camera

Describe the position, projection type and properties of the camera viewing the scene
CAMERA:
  Jump to SDL
  `camera { [CAMERA_TYPE] [CAMERA_ITEMS] [CAMERA_MODIFIERS] } |`
  `camera { CAMERA_IDENTIFIER [TANSFORMATIONS ...] }`
CAMERA_TYPE:
  `perspective | orthographic | fisheye | ultra_wide_angle | omnimax | panoramic | spherical | cylinder CYLINDER_TYPE`
CYLINDER_TYPE:
  `1 | 2 | 3 | 4`
CAMERA_ITEMS:
  `[location VECTOR] & [right VECTOR] & [up VECTOR] & [direction VECTOR] & [sky VECTOR]`
CAMERA_MODIFIERS:
  `[angle [angle F_HORIZONTAL] [F_VERTICAL]] & [look_at VECTOR] & [FOCAL_BLUR] & [NORMAL] & [TRANSFORMATION...]`
FOCAL_BLUR:
  `aperture FLOAT & blur_samples INT & [focal_point VECTOR] & [confidence FLOAT] & [variance FLOAT]`

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