Camera Section
The camera section contains parameters describing the technical specifications and the position of the camera when shooting the 360° spin.
You only need to specify these values if you are using the virtual space, e.g. for hot spots.
For 2D zoom and spins without hot spots you can omit this parameter group.
1.0Default
The value depends on the size of the optical sensor chip of the camera.
For full frame cameras the value is 1.0
. Common values are between 1.5 to 1.6. The crop factor is the same factor that affects the focal length of your camera's objective. E.g. the focal length of an objective with a full frame camera is 50mm. With a camera that has a crop factor of 1.5 the effective focal length would be 1.5 x 50mm = 75mm.
Please note that for an accurate calculation the rounded figure (e.g. 1.5) is not precise enough, since two to four decimal places are required.
In order to ensure an exact smooth video and hotspot implementation, please do the following calculation for specific sensor dimensions of the camera used. The size of the optical sensor chip can be found in the cameras technical specifications.
36mm x 24mm = 35mm full frame reference
x and y = sensor dimensions im mm of your camera
Please find below the calculation for a Canon 7D camera (which has the sensor dimensions of 22.3mm x 14.9mm) as an example:
50Default
Determines the focal length of the camera objective in mm.
postion(x,y,z)
and targetPosition(x,y,z)
can be used instead of distanceToTableCenter
, heightAboveTable
and targetHeightOffset
. (see illustration below)
Attribute | Explanation position (x,y,z) |
---|---|
x | if image plane is in line with table center, x is 0 |
y | height of the target in reference to the table center |
z | the distance between target and table center |
Attribute | Explanation targetPosition(x,y,z) |
---|---|
x | if target is is in table center, x is 0 |
y | height of the image plane in reference to the table center |
z | the distance between image plane and table center |
0Default
The straight distance from the cameras image plane to the center of the turn table in mm (see illustration below).
0Default
The straight distance from the optical center of your camera to the ground in mm (see illustration below).
0Default
The straight distance from the top of the turn table to the ground in mm (see illustration below).
0Default
The height of the camera target spot at the center of the turn table in mm.
If you vertically target the table center the value is 0.0 mm. (see illustration below)
0Default
The horizontal offset of the camera target spot at the vertical the center of the turn table related to the center of the turn table in mm. If you target the horizontal table center (default) the value is 0.0 mm.
500Default
Alternative parameter if heightCamera and heightTable are unknown. Only applies if both parameters are undefined.
Camera Positioning Illustration
Attribute | Description |
---|---|
hT | Parameter: targetHeightOffset |
h1 | Parameter: heightCamera |
h2 | Parameter: heightTable |
d | Parameter: distanceToTableCenter |
Usage of Robotic Camera Arm for rotations around the x-axis
Defines the length of the robot arm in mm; default value is the distance of the camera to the camera target. Only relevant if hotspots are used.
position of the arm jointDefault
Defines the position (x,y,z) of the robot arm joint in mm; default value is equal to the camera targetPosition
. Only relevant if hotspots are used.
0Default
Defines the angle from which distance from camera to target was measured in degrees. Only relevant if hotspots are used.
-90Default
Defines the start angle of the rotation around the x-asis in degrees. Only relevant if hotspots are used.
90Default
Defines the end angle of the rotation around the x-axis. Only relevant if hotspots are used.