Loading mesh from .obj

[tobix10]

Hey, I have another strange problem - 5 of 6 sides are illuminated, but ceiling is not ;/. Normals are good and the light source is just below ceiling. I was able to see texture, but it was dimmed. In mtl all materials have the same properties.
My way around is to give EmissiveColor, but I don't understend why only one side is not working ;/.

Code: Select all

# Blender MTL File: 'room.blend'
# Material Count: 3
 
newmtl Material.001
Ns 96.078431
Ka 1.000000 1.000000 1.000000
Kd 0.640000 0.640000 0.640000
Ks 0.000000 0.000000 0.000000
Ni 1.000000
d 1.000000
illum 1
map_Kd wood.jpeg
 
newmtl Material.002
Ns 96.078431
Ka 1.000000 1.000000 1.000000
Kd 0.640000 0.640000 0.640000
Ks 0.000000 0.000000 0.000000
Ni 1.000000
d 1.000000
illum 1
map_Kd wall.jpg
 
newmtl Material.003
Ns 96.078431
Ka 1.000000 1.000000 1.000000
Kd 0.640000 0.640000 0.640000
Ks 0.000000 0.000000 0.000000
Ni 1.000000
d 1.000000
illum 1
map_Kd ceiling.png
 

[CuteAlien]

As before - we again need the model. There's nothing I can debug without having a test-case.

[tobix10]

Sry https://www.dropbox.com/s/imgeeozmei8zw ... 2.tgz?dl=0

[CuteAlien]

Depending on what you want either front-/backfaces are flipped or normals are wrong. Do you want to be inside or outside of this box? The normals point inside, but the vertex order is putting the textures on the outside.

[tobix10]

but the vertex order is putting the textures on the outside.

All of them or just the ceiling? Can I change this in blender?

I want to be inside box. It's a simple room.

[CuteAlien]

Will have to figure that out myself first (no idea why I haven't run into this problem yet). I'm still a beginner myself when it comes to Blender. I try it in the evening.

[CuteAlien]

Export your obj file with z forward (instead of -z forward). Which doesn't really make sense to me right now as Irrlicht to my knowledge internally converts from right handed obj files to it's left handed format. But seems to work...