collada.light.SpotLight

class collada.light.SpotLight(id, color, constant_att=None, linear_att=None, quad_att=None, falloff_ang=None, falloff_exp=None, xmlnode=None)

Bases: collada.light.Light

Spot light as defined in COLLADA tag <spot>.

__init__(id, color, constant_att=None, linear_att=None, quad_att=None, falloff_ang=None, falloff_exp=None, xmlnode=None)

Create a new spot light.

Parameters:

• id (str) – A unique string identifier for the light
• color (tuple) – Either a tuple of size 3 containing the RGB color value of the light or a tuple of size 4 containing the RGBA color value of the light
• constant_att (float) – Constant attenuation factor
• linear_att (float) – Linear attenuation factor
• quad_att (float) – Quadratic attenuation factor
• falloff_ang (float) – Falloff angle
• falloff_exp (float) – Falloff exponent
• xmlnode – If loaded from xml, the xml node

Methods

__init__(id, color[, constant_att, ...])	Create a new spot light.
bind(matrix)	Binds this light to a transform matrix.
load(collada, localscope, node)
save()	Saves the light’s properties back to xmlnode

id

The unique string identifier for the light

color

Either a tuple of size 3 containing the RGB color value of the light or a tuple of size 4 containing the RGBA color value of the light

constant_att

Constant attenuation factor.

linear_att

Linear attenuation factor.

quad_att

Quadratic attenuation factor.

falloff_ang

Falloff angle

falloff_exp

Falloff exponent

xmlnode

ElementTree representation of the light.

save()

Saves the light’s properties back to xmlnode

bind(matrix)

Binds this light to a transform matrix.

Parameters:matrix (numpy.array) – A 4x4 numpy float matrix Return type:collada.light.BoundSpotLight