Multiple Normal Maps on One Model

General Discussion
1

Hello,
Quick question, I have a room with five different textures made in blender. 3 Normal maps (Floor, Wall, Ceiling) and 2 Diffuse Textures (Floor and Wall, The Ceiling is only a normal map). So after exporting using Chicken, then loading and using the Automatic Shader Generator, Only my wall is normal mapped.
Lines of Code in Python:

room = loader.loadModel("Room")
room.reparentTo(render)
render.setShaderAuto()

Interesting Part of .egg File:

<Material> Wall {
  <Scalar> diffr {0.800000011921}
  <Scalar> diffg {0.800000011921}
  <Scalar> diffb {0.800000011921}
  <Scalar> specr {0.25}
  <Scalar> specg {0.25}
  <Scalar> specb {0.25}
  <Scalar> shininess {12.5}
}
<Material> Tile {
  <Scalar> diffr {0.800000011921}
  <Scalar> diffg {0.800000011921}
  <Scalar> diffb {0.800000011921}
  <Scalar> specr {0.25}
  <Scalar> specg {0.25}
  <Scalar> specb {0.25}
  <Scalar> shininess {12.5}
}
<Material> Ceiling {
  <Scalar> diffr {0.800000011921}
  <Scalar> diffg {0.800000011921}
  <Scalar> diffb {0.800000011921}
  <Scalar> specr {0.25}
  <Scalar> specg {0.25}
  <Scalar> specb {0.25}
  <Scalar> shininess {12.5}
}
<Texture> Ceiling_00_Tex.002 {
  "./Textures/Ceiling-Normal.jpg"
  <Scalar> envtype { NORMAL }
  <Scalar> minfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> magfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> wrap { REPEAT }
}
<Texture> Wall_01_Tex.004 {
  "./Textures/Wall-Normal.jpg"
  <Scalar> envtype { NORMAL }
  <Scalar> minfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> magfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> wrap { REPEAT }
}
<Texture> Tile_01_Tex.001 {
  "./Textures/Tile-Normal.jpg"
  <Scalar> envtype { NORMAL }
  <Scalar> minfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> magfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> wrap { REPEAT }
}
<Texture> Tile_00_Tex {
  "./Textures/Tile-Diffuse.jpg"
  <Scalar> envtype { MODULATE }
  <Scalar> minfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> magfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> wrap { REPEAT }
}
<Texture> Wall_00_Tex.003 {
  "./Textures/Wall-Diffuse.jpg"
  <Scalar> envtype { MODULATE }
  <Scalar> minfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> magfilter { LINEAR_MIPMAP_LINEAR }
  <Scalar> wrap { REPEAT }
}

Thanks for all of your help!

2

If you temporarily disable the wall normal map (by changing the envtype to “modulate” for example), does the normal map for the ceiling work?

3

Changing the wall to normal map just makes the wall have the purple normal map color, and still no normal maps on the floor or ceiling. Should I make the room into 3 separate objects?

SOLVED: By exporting the parts of the room as seperate objects, it works fine.

4

Hmm. Are there 's in the egg file pointing to Ceiling_00_Tex.002 ?

5

Thanks for your help, it is fine with 3 different models. By the Way: There were Tref’s pointing to the appropriate texture spaces.

6

Don’t suppose you could post your not working egg file regardless? (All of it, not just the start.) The original scenario should work and I would rather like to know why it didn’t - if there is a bug its best squashed.

7

Well, Panda indeed supports just one normal map per render state. Wouldn’t surprise me if that happened to be the problem here (although I do wonder why the ceiling didn’t have the normal map then, with the one on the walls disabled).

EDIT 2017-07-15: Panda now supports multiple normal maps in the shader generator (1.10+)

8

Sure Thing:

I made a quick page due to the length of some of the files.

http://sites.google.com/site/blendergameenginefun/panda

Room.egg is the Not working original.

Then the 3 others are currently in place working ones.

p.s. Don’t mind the whole BGE thing… I switched away from that one some time back.