When I do shadows they look grainy.

``````from math import pi, sin, cos

from direct.showbase.ShowBase import ShowBase
from direct.actor.Actor import Actor
from direct.interval.IntervalGlobal import Sequence
from panda3d.core import *

class MyApp(ShowBase):
def __init__(self):
ShowBase.__init__(self)

# Disable the camera trackball controls.
self.disableMouse()

# Reparent the model to render.
self.environ.reparentTo(self.render)
# Apply scale and position transforms on the model.
self.environ.setScale(0.25, 0.25, 0.25)
self.environ.setPos(-8, 42, 0)

# Load and transform the panda actor.
self.pandaActor = Actor("models/panda-model",
{"walk": "models/panda-walk4"})
self.pandaActor.setScale(0.005, 0.005, 0.005)
self.pandaActor.reparentTo(self.render)
# Loop its animation.
self.pandaActor.loop("walk")

# Create the four lerp intervals needed for the panda to
# walk back and forth.
pandaPosInterval1 = self.pandaActor.posInterval(13,
Point3(0, -10, 0),
startPos=Point3(0, 10, 0))
pandaPosInterval2 = self.pandaActor.posInterval(13,
Point3(0, 10, 0),
startPos=Point3(0, -10, 0))
pandaHprInterval1 = self.pandaActor.hprInterval(3,
Point3(180, 0, 0),
startHpr=Point3(0, 0, 0))
pandaHprInterval2 = self.pandaActor.hprInterval(3,
Point3(0, 0, 0),
startHpr=Point3(180, 0, 0))

# Create and play the sequence that coordinates the intervals.
self.pandaPace = Sequence(pandaPosInterval1,
pandaHprInterval1,
pandaPosInterval2,
pandaHprInterval2,
name="pandaPace")
self.pandaPace.loop()
self.light = render.attachNewNode(Spotlight("Spot"))
self.light.node().setScene(render)
self.light.node().showFrustum()
self.light.node().getLens().setFov(4000)
self.light.node().getLens().setNearFar(10, 100)
self.light.setP(-80)
render.setLight(self.light)
self.light.setPos(0,0,90)

self.alight = render.attachNewNode(AmbientLight("Ambient"))
self.alight.node().setColor(LVector4(0.5, 0.5, 0.5, 1))
render.setLight(self.alight)

# Important! Enable the shader generator.

# Define a procedure to move the camera.