I'm certain it must be fully transparent for the transparency to take effect unless you use another code. (That's how mine work anyway.) I'm not to familiar with using this code, but I'm sure it's not to hard. (It's not modified for wings yet!)
material preset_4_bodyMatL
{
receive_shadows on
technique
{
pass
{
scene_blend alpha_blend
fog_override true
ambient 1.000000 1.000000 1.000000 1.000000
diffuse 1.000000 1.000000 1.000000 1.000000
specular 0.050000 0.050000 0.050000 1.000000
emissive 0.000000 0.000000 0.000000 1.000000
alpha_rejection greater_equal 128
cull_hardware none
cull_software none
texture_unit
{
texture Texture.png (make your texture slightly trasparent, the rest no texture at all)
tex_address_mode wrap
filtering trilinear
}
}
}
}
Anyways, You have to save the wings as transparentbody.png, just like in the .material file.