No shadows in Display Region

Scripting Issues
1

I can’t get shadows to work using display regions.
I am using the softshadow example to accomplish this.
Can someone help me out please.

You can download the file here:
megaupload.com/?d=KOCPQFGK
Filename: shadowsEdited.rar
Filesize: 487.78 KB

Or you can check the code here:

#!/usr/bin/env python

from pandac.PandaModules import loadPrcFileData

from pandac.PandaModules import *
loadPrcFileData("", “prefer-parasite-buffer #f”)
#loadPrcFileData("", “show-frame-rate-meter #t”)
from direct.directbase import DirectStart

Import whatever classes are necessary

from direct.interval.IntervalGlobal import Sequence
from sys import exit
import random, math
from math import pi, sin
from random import random

Import the Shadow Manager

from shadowManager import ShadowManager

class World(object):
def init(self):

# Make a way out of here!
base.accept("escape", exit)

################################################################
"""                      SETUP LIGHTS                        """
################################################################
# Light1 - Sunlight
self.Light1 = PointLight('light1') 
self.Light1.setColor(VBase4(2.5, 2.5, 2.5, 1)) 
self.pointLight1 = render.attachNewNode(self.Light1) 
self.pointLight1.setPos(0, 0, 300)
# Light2 - Shadow light (ambient)
self.Light2 = AmbientLight('light2')
self.Light2.setColor(VBase4(0.75, 0.75, 0.75, 1)) 
self.ambientLight1 = render.attachNewNode(self.Light2) 
    
################################################################
"""                      SETUP SHADOW                        """
################################################################
# Initiate the shadows
self.sMgr = ShadowManager(render)
self.sMgr.setAmbient(0.2)     # Most of these five are the default
self.sMgr.setHardness(30)     # values so it was kinda unnecessary to
self.sMgr.setFov(30)          # set them explicitly but I wanted to
self.sMgr.setNearFar(10, 1000) # show how to set them anyway.

################################################################
"""                      SETUP MODELS                        """
################################################################
#Create the dummy nodes
self.dummyNode = render.attachNewNode("renderAllModels")
    
# Uneven terrain
self.env = loader.loadModel("terrain002") 
self.env.reparentTo(self.dummyNode) 
self.env.setPos(0,0,-5)
self.env.setScale(0.5,0.5,0.5)

# Load the teapot
self.teapot = loader.loadModel("teapot")
self.teapot.setTwoSided(True)
self.teapot.reparentTo(self.dummyNode)
# The teapot has no texture, so you have to tell it to the ShadowManager
# Otherwise the model will turn up black.
self.sMgr.flagUntexturedObject(self.teapot)

# Set intervals to move the teapot
self.teapot.hprInterval(5.0, Vec3.zero(), Vec3(360, 0, 0)).loop()
Sequence(self.teapot.posInterval(2.0, Point3.zero(), Point3(2, 0, 1)), self.teapot.posInterval(2.0, Point3(2, 0, 1), Point3.zero())).loop()
    
################################################################
"""               LIGHTS - CAMERAS - ACTION                  """
################################################################
# ***********************************************************************
## # Camera setup
## self.my_cam1 = Camera("cam1") 
## self.my_camera1 = render.attachNewNode(self.my_cam1) 
## self.my_camera1.setName("camera1")
## self.my_camera1.setPos(-10,-10,50)
## self.my_camera1.lookAt(self.teapot)
## self.my_camera1.node().getLens().setAspectRatio(4.0/2.0)
## self.camSpot = self.my_camera1.getPos()
    
## # Disable the default DisplayRegion, which covers the whole screen. 
## self.dr = base.camNode.getDisplayRegion(0) 
## self.dr.setActive(0) # disable ( use displayRegion 0 )
        
## # DisplayRegions. 
## self.window = self.dr.getWindow() 
## self.dr1 = self.window.makeDisplayRegion(0.026, 0.975, 0.02, 0.98) 
## self.dr1.setSort(self.dr.getSort())

## # Setup the camera 
## self.dr1.setCamera(self.my_camera1)

## base.disableMouse()
## camPivot = render.attachNewNode("cameraPivotPoint")
## self.my_camera1.reparentTo(camPivot)
## self.my_camera1.node().getLens().setNearFar(1,1000)
## self.my_camera1.node().getLens().setFov(45)
## ## self.my_camera1.setPos(self.teapot.getX()-10, self.teapot.getY()+10, 1.5)
## self.my_camera1.setPos(-30,-30,35)
## self.my_camera1.lookAt(self.teapot)

"""To use display region, uncomment the above commented code...
then comment the code under 'Setup the camera.'"""

# Setup the camera
base.disableMouse()
camPivot = render.attachNewNode("cameraPivotPoint")
base.cam.reparentTo(camPivot)
base.camLens.setNearFar(1,1000)
base.camLens.setFov(75)
base.cam.setPos(-10,-10,15)
base.cam.lookAt(self.teapot)
# ***********************************************************************

# Setup an interval to rotate the camera around camPivot
camPivot.hprInterval(15.0, Vec3.zero(), Vec3(360, 0, 0)).loop()

# Apply lights
self.dummyNode.setLight(self.pointLight1)
self.dummyNode.setLight(self.ambientLight1)

# Position the shadow camera
self.sMgr.light.setPos(0,20,80)
self.sMgr.light.lookAt(self.teapot)
self.sMgr.light.node().showFrustum() # Show the frustrum

Initiate the world class and run!

World();run()

2

Please.
Why am I getting no reply on this?
Did I do a major messup somewhere?

Somebody, please help.
I need to have shadows in my displayRegion.
I am stuck at this point and cannot go on.
Please

3

The shader is still applied to the default camera (base.camNode). You should apply it to your display region’s camera.

  1. pass that camera to ShadowManager :
    # Initiate the shadows
    self.sMgr = ShadowManager(render,self.my_cam1)
  1. shadowManager.py :
  def __init__(self, scene = base.render, cam=None, ambient = 0.2, hardness = 16, fov = 40, near = 10, far = 100):
    (base.cam.node() if cam is None else cam).setInitialState(mci.getState())
4

Thank you very much ynjh_jo.
It’s working.

Just one question though.
How do I disable ShadowManager during gameplay?

5

What do you mean by that ?
Do you want to render without shadow, or just freeze the last frame and temporarily stop rendering the scene ?

6

I want to render without shadow.

7

To clear the shader on the camera :

base.camNode.setInitialState(RenderState.makeEmpty())
8

Once again, thank you very much.