def create(self, app, lights):
"""
create the shadow maps.
"""
if self.getAttr("useShadowMap", False):
type = self.getLightType()
#kernel = ShadowMap.noKernel()
#kernel = ShadowMap.kernel44()
if type==Light.POINT_LIGHT:
# TODO: SM: point light shadows
raise NotImplementedError
elif type==Light.DIRECTIONAL_LIGHT:
# directional light needs scene frustum
app.needFrustumPoints = True
mapSize = 2048.0
numSplits = 4
self.shadowMapArray = ShadowMapArray(app, app.sceneCamera, mapSize)
frustas = splitFrustum(app.sceneFrustum, numSplits, 0.75)
for frustum in frustas:
camera = DirectionalShadowCamera( app, self, frustum, mapSize )
self.shadowMapArray.addShadowMap( DirectionalShadowMap( camera ))
else: # spot light
mapSize = 2048
self.shadowMapArray = ShadowMapArray(app, app.sceneCamera, mapSize)
camera = SpotShadowCamera(app, self)
self.shadowMapArray.addShadowMap( SpotShadowMap( camera ) )
if self.shadowMapArray!=None:
self.shadowMapArray.create(app)
GLObject.create(self, app, lights)
class Light(GLObject):
DIRECTIONAL_LIGHT = 0
POINT_LIGHT = 1
SPOT_LIGHT = 2
# signal stuff
LIGHT_POSITION_SIGNAL = GLObject.signalCreate()
LIGHT_DIRECTION_SIGNAL = GLObject.signalCreate()
def __init__(self, params):
# FIXME: lights may be on the same unit for long time,
# we do not have to set the states each frame then!
self.name = params.get('name')
GLObject.__init__(self, params)
self.lightCutOff = self.getAttr("lightCutOff", 180.0)
# signal stuff
self.signalRegister( Light.LIGHT_POSITION_SIGNAL )
self.signalRegister( Light.LIGHT_DIRECTION_SIGNAL )
# shadow maps for this light
self.shadowMapArray = None
# TODO: make xml configurable
self.dimming = 0.3
def __str__(self):
return self.name
def setIndex(self, index):
self.index = index
self.glIndex = GL_LIGHT0+index
def create(self, app, lights):
"""
create the shadow maps.
"""
if self.getAttr("useShadowMap", False):
type = self.getLightType()
#kernel = ShadowMap.noKernel()
#kernel = ShadowMap.kernel44()
if type==Light.POINT_LIGHT:
# TODO: SM: point light shadows
raise NotImplementedError
elif type==Light.DIRECTIONAL_LIGHT:
# directional light needs scene frustum
app.needFrustumPoints = True
mapSize = 2048.0
numSplits = 4
self.shadowMapArray = ShadowMapArray(app, app.sceneCamera, mapSize)
frustas = splitFrustum(app.sceneFrustum, numSplits, 0.75)
for frustum in frustas:
camera = DirectionalShadowCamera( app, self, frustum, mapSize )
self.shadowMapArray.addShadowMap( DirectionalShadowMap( camera ))
else: # spot light
mapSize = 2048
self.shadowMapArray = ShadowMapArray(app, app.sceneCamera, mapSize)
camera = SpotShadowCamera(app, self)
self.shadowMapArray.addShadowMap( SpotShadowMap( camera ) )
if self.shadowMapArray!=None:
self.shadowMapArray.create(app)
GLObject.create(self, app, lights)
def getLightType(self):
if self.lightPosition[3]==0.0:
return Light.DIRECTIONAL_LIGHT
elif self.lightCutOff==180.0:
return Light.POINT_LIGHT
else:
return Light.SPOT_LIGHT
