Working with cameras
The creation of an interactive rendering, or a video, involves the specification of the position and orientation of a "camera" representing your point of view.
Brainrenderprovides a number of pre-defined cameras that can be used (e.g.
frontal). If you wish to use any of these cameras just pass the corresponding name to
renderalso takes a
zoomparameter which specifies the camera's zoon.
You can, however, create a custom camera for your needs by specifying a set of camera parameters and pass that (as a dictionary) to
scene.render. To get the parameters you need, the simplest thing is to render your scene with any old camera, move the scene to get the point of view you need and press
con your keyboard. This will print out the current camera parameters. You can then close your scene and copy-paste the camera parameters in your code. The next time you render your scene it will use your parameters!
The parameters used to specify a camera include:
pos: a set of 3D coordinate specifying the position of the camera
viewup: a 3d vector indicating the direction of "up" in your scene (should always be
0, -1, 0).
clippingRange: a set of a short and long distance, anything outside this range will not be render
additional parameters (not generally needed):
focalPointspecifies the 'focal point' of the camera
distancethe camera's distance.