Cameras

A Camera defines a position and view direction for rendering the scene.

A new camera can be instantiated as follows:

scene = load_scene(rt.scene.munich)
cam = Camera(position=(200., 0.0, 50.))
cam.look_at((0.0,0.0,0.0))
scene.render(cam)

class sionna.rt.Camera(position: mi.Point3f, orientation: mi.Point3f = (0.0, 0.0, 0.0), look_at: rt.RadioDevice | rt.SceneObject | mi.Poin3f | None = None)

Camera defining a position and view direction for rendering a scene

In its local coordinate system, a camera looks toward the positive X-axis with the positive Z-axis being the upward direction.

Parameters:

• position (mi.Point3f) – Position \((x,y,z)\) [m] as three-dimensional vector

• orientation (mi.Point3f) – Orientation \((\alpha, \beta, \gamma)\) specified through three angles corresponding to a 3D rotation as defined in (3). This parameter is ignored if look_at is not None.

• look_at (rt.RadioDevice | rt.SceneObject | mi.Poin3f | None) – A position or object to look at. If set to None, then orientation is used to orient the device.

Methods

look_at(target: sionna.rt.radio_devices.radio_device.RadioDevice | sionna.rt.scene_object.SceneObject | mitsuba.Point3f) → None

Sets the orientation so that the camera looks at a position, scene object, or radio device

Given a point \(\mathbf{x}\in\mathbb{R}^3\) with spherical angles \(\theta\) and \(\varphi\), the orientation of the camera will be set equal to \((\varphi, \frac{\pi}{2}-\theta, 0.0)\).

Parameters:

target (sionna.rt.radio_devices.radio_device.RadioDevice | sionna.rt.scene_object.SceneObject | mitsuba.Point3f) – A position or object to look at.

Attributes

property orientation

Get/set the orientation

Type:

mi.Point3f

property position

Get/set the position

Type:

mi.Point3f