I am using Unity on Wii and having an issue; I am unsure if this is Wii specific, and I know that there probably aren't many people using Unity on Wii.

I'm having problems with the "SphereMap" texgenmode in ShaderLab. It works as expected in the editor (with "Wii Graphics Emulation" enabled); however, on hardware the object displays as solid magenta, and thereafter almost everything else displays with corrupt texture coordinates. Some other 'texgenmodes' also cause this issue. Removing the "TexGen SphereMap" or disabling the pass that uses that texture makes the issue go away. I have attached the shader file. Any assistance would be appreciated. Thank you.

Shader "1P Wii Shader" {
Properties {
    _Color ("Main Color", Color) = (1,1,1,0)
    _SpecColor ("Spec Color", Color) = (1,1,1,1)
    _Emission ("Emmisive Color", Color) = (0,0,0,0)
    _Shininess ("Shininess", Range (0.01, 1)) = 0.7
    _MainTex ("Base (RGB)", 2D) = "white" {}
    _SphereMapTex ("Spheremap (RGB)", 2D) = "black" {TexGen SphereMap} //appears to be causing problems
    _SphereMapColor ("Spheremap Color (RGB)", Color) = (1,1,1,1)
}

SubShader {
    Pass {
        Material {
            Diffuse [_Color]
            Ambient [_Color]
            Shininess [_Shininess]
            Specular [_SpecColor]
            Emission [_Emission]
        }
        Lighting On
        SeparateSpecular On
        SetTexture [_MainTex] {
            Combine texture * primary DOUBLE, texture * primary
        }
    }

    //Sphere Map
    Pass
    {
        Name "SPHERE MAP"
        ZWrite Off
        Blend SrcAlpha OneMinusSrcAlpha

        SetTexture [_SphereMapTex] {
            constantColor[_SphereMapColor]
            combine texture * constant
        }

        SetTexture [_MainTex] {
            combine previous, texture * previous
        }        
    }        
}

}