Panda3D/Cubemapping VR

cube.egg

<CoordinateSystem> { Z-up }

<Comment> { "Egg laid by Chicken for Blender, version R85" }

<Material> Material {
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  <Scalar> diffg {0.800000011921}
  <Scalar> diffb {0.800000011921}
  <Scalar> specr {0.25}
  <Scalar> specg {0.25}
  <Scalar> specb {0.25}
  <Scalar> shininess {12.5}
}
<Group> Cube {
  <VertexPool> Cube {
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      <UV>  {
        0.000000 0.000000
        <Tangent> { 0.707107 -0.707107 0.000000 }
        <Binormal> { 0.707107 0.707107 0.000000 }
      }
    }
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      <UV>  {
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        <Tangent> { 1.000000 0.000000 0.000000 }
        <Binormal> { -0.000000 1.000000 -0.000000 }
      }
    }
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      <UV>  {
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        <Tangent> { 1.000000 0.000000 0.000000 }
        <Binormal> { -0.000000 1.000000 -0.000000 }
      }
    }
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      <UV>  {
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        <Tangent> { 1.000000 0.000000 0.000000 }
        <Binormal> { -0.000000 1.000000 -0.000000 }
      }
    }
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      <UV>  {
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        <Binormal> { -0.447213 0.894427 0.000000 }
      }
    }
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      <UV>  {
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        <Tangent> { -1.000000 0.000000 -0.000000 }
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      }
    }
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      <UV>  {
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        <Tangent> { -1.000000 0.000000 0.000000 }
        <Binormal> { 0.000000 1.000000 -0.000000 }
      }
    }
    <Vertex> 7 {
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      <UV>  {
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        <Tangent> { -1.000000 0.000000 0.000000 }
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      }
    }
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      <UV>  {
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        <Tangent> { 0.707107 -0.707107 0.000000 }
        <Binormal> { -0.000000 -0.000000 0.707107 }
      }
    }
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        <Tangent> { -0.894427 -0.447213 0.000000 }
        <Binormal> { -0.000000 0.000000 0.447214 }
      }
    }
    <Vertex> 10 {
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      <UV>  {
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        <Tangent> { -0.000000 -1.000000 0.000000 }
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      }
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      <UV>  {
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        <Tangent> { -1.000000 0.000000 0.000000 }
        <Binormal> { -0.000000 -0.000000 1.000000 }
      }
    }
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      <UV>  {
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        <Tangent> { -1.000000 0.000000 0.000000 }
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      }
    }
    <Vertex> 15 {
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      <UV>  {
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        <Tangent> { -1.000000 0.000000 -0.000000 }
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      }
    }
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        <Tangent> { 0.000000 1.000000 0.000000 }
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      }
    }
    <Vertex> 19 {
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      <UV>  {
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        <Tangent> { 0.000000 1.000000 -0.000000 }
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      }
    }
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        <Binormal> { -0.000000 -0.000000 1.000000 }
      }
    }
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      }
    }
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      <UV>  {
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      }
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        <Binormal> { -0.000000 -0.000000 1.000000 }
      }
    }
  }
  <Polygon> {
    <MRef> { Material }
    <Normal> { 0.000000 0.000000 -1.000000
    }
    <VertexRef> { 0 1 2 3 <Ref> { Cube } }
  }
  <Polygon> {
    <MRef> { Material }
    <Normal> { 0.000000 -0.000000 1.000000
    }
    <VertexRef> { 4 5 6 7 <Ref> { Cube } }
  }
  <Polygon> {
    <MRef> { Material }
    <Normal> { 1.000000 -0.000000 0.000000
    }
    <VertexRef> { 8 9 10 11 <Ref> { Cube } }
  }
  <Polygon> {
    <MRef> { Material }
    <Normal> { -0.000000 -1.000000 -0.000000
    }
    <VertexRef> { 12 13 14 15 <Ref> { Cube } }
  }
  <Polygon> {
    <MRef> { Material }
    <Normal> { -1.000000 0.000000 -0.000000
    }
    <VertexRef> { 16 17 18 19 <Ref> { Cube } }
  }
  <Polygon> {
    <MRef> { Material }
    <Normal> { 0.000000 1.000000 0.000000
    }
    <VertexRef> { 20 21 22 23 <Ref> { Cube } }
  }
}

panda3d_test.py

from direct.showbase.ShowBase import ShowBase
from panda3d.core import *

import numpy as np


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

        ShowBase.__init__(self)

        self.environment = loader.loadModel('environment')
        self.environment.reparentTo(self.render)
        self.environment.setZ(-2)
        self.environment.setScale(*[0.1]*3)

        # Set up environment:
        self.screen = loader.loadModel('cube')
        self.screen.reparentTo(self.render)
        self.screen.setScale(1.0, 0.0000001, 1.0)
        self.screen.setPos(0.0, -2, 0.0)

        self.panda = loader.loadModel('panda')
        self.panda.reparentTo(self.render)
        self.panda.setScale(*[0.05]*3)

        self.teapot = loader.loadModel('teapot')
        self.teapot.reparentTo(self.render)
        self.teapot.setScale(*[0.1]*3)
        self.teapot.setPos(0, -1, 0)

        self.teapot2 = loader.loadModel('teapot')
        self.teapot2.reparentTo(self.render)
        self.teapot2.setScale(*[0.1]*3)
        self.teapot2.setPos(0, -5, 0)

        # Cubemapping:

        self.rig = NodePath('rig')
        buffer = base.win.makeCubeMap('env', 1024, self.rig)
        self.rig.reparentTo(self.render)

        for child in self.rig.getChildren():
            child.node().setCameraMask(BitMask32.bit(1))

        self.screen.hide(BitMask32.bit(1))

        self.screen.setTexGen(TextureStage.getDefault(), TexGenAttrib.MWorldPosition)
        self.screen.setTexture(buffer.getTexture())
        self.screen.setTexProjector(TextureStage.getDefault(), self.screen, self.rig)

        taskMgr.add(self.loop, "Bla")

    def loop(self, task):

        # Animate:
        t = task.time
        xpos = 0.8 * np.sin(2 * np.pi * 0.5 * t)
        ypos = 0.0 * np.sin(2 * np.pi * 0.5 * t)
        zpos = 0.8 * np.cos(2 * np.pi * 0.5 * t)
        
        spos = 0.0 * np.sin(2 * np.pi * 0.5 * t) - 3.0
        
        self.panda.setPos(xpos, 1, zpos)
        self.rig.setPos(xpos, 1, zpos)
        self.screen.setPos(0, spos, 0)

        # self.camera.setPos(xpos, 1, zpos)
        # self.camera.setHpr(180, 0, 0)

        self.camera.setPos(6, 7, 2)
        self.camera.lookAt(self.screen)

        return task.cont
 
app = MyApp()
app.run()