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# The Original Code is the Python Computer Graphics Kit.
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# The Initial Developer of the Original Code is Matthias Baas.
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# $Id: gltargetspotlight.py,v 1.4 2005/07/03 09:43:36 mbaas Exp $
## \file gltargetspotlight.py
## Contains the GLTargetSpotLight class.
import protocols
import scene
from Interfaces import *
from slots import *
from cgtypes import vec3
from worldobject import _initWorldObject,_preInitWorldObject
import lookat
import cmds
import _core
# GLTargetSpotLight
class GLTargetSpotLight(_core.GLSpotLight):
"""This class represents an OpenGL spot light.
The direction of the light is the local positive Z axis.
"""
protocols.advise(instancesProvide=[ISceneItem])
def __init__(self,
name="GLSpotLight",
parent=None,
enabled=True,
intensity=1.0,
ambient=None,
diffuse=None,
specular=None,
constant_attenuation=1.0,
linear_attenuation=0.0,
quadratic_attenuation=0.0,
exponent=0.0,
cutoff=45.0,
target=vec3(0,0,0),
cast_shadow = False,
auto_insert=True,
**params
):
exec _preInitWorldObject
_core.GLSpotLight.__init__(self, name)
_initWorldObject(self, name=name, parent=parent,
auto_insert=auto_insert,
**params)
target = vec3(target)
# Target
self.target_slot = Vec3Slot(target)
self.addSlot("target", self.target_slot)
self.enabled = enabled
self.intensity = intensity
if ambient!=None:
self.ambient = vec3(ambient)
if diffuse!=None:
self.diffuse = vec3(diffuse)
if specular!=None:
self.specular = vec3(specular)
self.constant_attenuation = constant_attenuation
self.linear_attenuation = linear_attenuation
self.quadratic_attenuation = quadratic_attenuation
self.exponent = exponent
self.cutoff = cutoff
self.cast_shadow = cast_shadow
# Create the internal LookAt component
self._lookat = lookat.LookAt()
self._lookat.name = "GLTargetSpot_LookAt"
self._lookat.output_slot.connect(self.rot_slot)
self.pos_slot.connect(self._lookat.pos_slot)
self.target_slot.connect(self._lookat.target_slot)
# Create the "target" property
exec slotPropertyCode("target")
def protocols(self):
return [ISceneItem]
|