Red color appears on a model

I used WhiteHorns tutorial on removing geoset/glows to take out the hero glow of ArthaswithSword. I actually tried a different method before but the alpha went all black.

Everything is just fine except the back of the knees. They look like this.

If you followed Whitehorn's tutorial, that would be a very strange side-effect to get.

Does it do that in game?

Are you using a custom texture? If so, are you sure it doesn't do that even before you remove the glow?

Custom textures can do weird things. I had a similar experience with a peasant using a custom skin. In that particular case (though not neccessarily in this case) blizzard had incorrectly made two polygons "flipped" so that the texture faced inwards and was thus invisible. I solved it by making the material two sided, which you do like this:

Your material that contains the skin probably looks something like this:

Material {
Layer {
FilterMode Transparent,
Unshaded,
TwoSided, <------add this
static TextureID 1,
}
Layer {
FilterMode Blend,
static TextureID 0,
}
}


Adding "TwoSided" there might help, if the defect causing your problem is related to the same problem.

It shows up in-game too.

I'll try the default skin after I get back from work.

You're right. The problem was with the skin. I placed an alpha on that particular part.

Strangely though, that red thing doesn't appear as long as the unit had a hero glow.

Well, thanks for the info.

EDIT: It was actually there even before removing the hero glow. I just didn't notice because the hero glow I used was grey.