C++ and loading in models.

Pipeline
1

Hi, I’m new to Panda 3d and am loading in models. All my models load in and are visible. However, they are blank white. When I look at the them in pview and press L they show my textues. When I load in the .egg files from the models folder, they all show texture. I have tried this by using collada, then dae2egg and maya with blender. All with the same result. They work in pview after pressing L but only show white in pnada 3d. Im really confused. Iv’e done so much research but cant find anything. Is it lighting? Do I have to add code? Or is there a bug I can fix? Any advice is appreciated.

2

L enables lighting, so you’ll have to add lights to your Panda3D scene in order to reproduce the effect of pressing L in pview.

I’m not sure what it is about your particular model that causes it to only show textures when there are lights applied. You’d need to share your .egg file - or at least the top section, with the material and texture definitions - for us to be able to tell you.

3

Its just a webpage texture on top of every side of a cube. In pview it works great. And how would I add lighting? Iv’e looked into that as well, and there doesn’t seem to be any simple lighting really. I tried all white and clearing lighting but that did not do anything. It won’t let me attach the file so here is the text of the .egg file.

{ Z-up }
Material {
diffr { 0.640000 }
diffg { 0.640000 }
diffb { 0.640000 }
specr { 0.500000 }
specg { 0.500000 }
specb { 0.500000 }
shininess { 12.5 }
emitr { 0.000000 }
emitg { 0.000000 }
emitb { 0.000000 }
}

TeenInkOne.png {
“./tex/TeenInkOne.png”
envtype { MODULATE }
}

Cube {
{
{
1.000000 0.000000 0.000000 0.000000
0.000000 1.000000 0.000000 0.000000
0.000000 0.000000 1.000000 0.000000
-0.158242 0.261159 0.502549 1.000000
}
}

<VertexPool> Cube {

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    <UV>  {
      0.000000 0.000000
    }
  }
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    <UV>  {
      1.000000 0.000000
    }
  }
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    }
  }
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    }
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    }
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<Polygon> {
  <TRef> { TeenInkOne.png }
  <MRef> { Material }
  <Normal> {0.000000 0.000000 -1.000000}
  <VertexRef> { 0 1 2 3 <Ref> { Cube }}
}
<Polygon> {
  <TRef> { TeenInkOne.png }
  <MRef> { Material }
  <Normal> {0.000000 0.000000 1.000000}
  <VertexRef> { 4 5 6 7 <Ref> { Cube }}
}
<Polygon> {
  <TRef> { TeenInkOne.png }
  <MRef> { Material }
  <Normal> {1.000000 -0.000000 0.000000}
  <VertexRef> { 8 9 10 11 <Ref> { Cube }}
}
<Polygon> {
  <TRef> { TeenInkOne.png }
  <MRef> { Material }
  <Normal> {-0.000000 -1.000000 -0.000000}
  <VertexRef> { 12 13 14 15 <Ref> { Cube }}
}
<Polygon> {
  <TRef> { TeenInkOne.png }
  <MRef> { Material }
  <Normal> {-1.000000 0.000000 -0.000000}
  <VertexRef> { 16 17 18 19 <Ref> { Cube }}
}
<Polygon> {
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  <MRef> { Material }
  <Normal> {0.000000 1.000000 0.000000}
  <VertexRef> { 20 21 22 23 <Ref> { Cube }}
}

}

4

panda3d.org/manual/index.php/Lighting

The default that pview uses is a combination of a directional light and an ambient light.