SpotLight¶

Qualified name: algan.rendering.lights.SpotLight

class SpotLight(*args, target=tensor([0., 0., 0.]), cone_angle=30.0, penumbra=0.0, decay=0.0, distance=0.0, shadow_radius=0.0, degrees=True, **kwargs)[source]¶

Bases: _TargetedLight

Cone of light aimed at a target.

Parameters:

target – World point the cone is aimed at.
cone_angle – Half-angle of the cone, in degrees unless degrees is False (default 30).
degrees (bool) – Whether cone_angle is in degrees. Defaults to True; pass False to give it in radians.
penumbra – Portion [0, 1] of the cone over which the light fades to zero at the edge (0 = hard edge).
shadow_radius (decay / distance /) – As on PointLight.

Methods

Attributes

`animation_manager`	This mob's scene-owned animation manager.
`basis`	The Mob's orientation and scale, as a flattened 3x3 matrix of shape `(*, 9)`.
`casts_shadows`	Whether this Mob's geometry blocks light on its way from a light source to another surface -- whether it casts a shadow.
`children`	The Mobs attached below this one, in attachment order.
`closed_shell`	Whether this Mob's triangles form a CLOSED shell -- every camera ray that enters the geometry crosses a second time on its way out.
`draws_descendants`	Whether `get_render_primitives` returns geometry belonging to this Mob's DESCENDANTS as well as its own.
`forward`	Get the direction the Mob is facing.
`lifespan`	This mob's [spawn, despawn) interval on its Scene timeline (a `Lifespan`).
`light_type`
`location`	The Mob's position in world space, shape `(*, 3)`.
`normalized_basis`	The Mob's orientation with scale divided out, shape `(*, 9)`.
`parents`	The Mobs this one is attached to, in attachment order.
`receives_shadows`	Whether this Mob's surfaces are darkened by shadows cast onto them.
`right`	Get the Mob's own rightward direction.
`scale_coefficient`	The Mob's scale along its own right, up and forward axes, shape `(*, 3)`.
`two_sided`	Whether this Mob's geometry should be lit from whichever side the ray arrives on.
`up`	Get the Mob's own upward direction.
`x`	The Mob's x coordinate in world units, shape `(*, 1)`.
`xy`	The Mob's x and y coordinates in world units, shape `(*, 2)`.
`y`	The Mob's y coordinate in world units, shape `(*, 1)`.
`z`	The Mob's z coordinate in world units, shape `(*, 1)`.