bgfx/3rdparty/glsl-optimizer/tests/fragment/zun-Reflective_Bumped_Unlit-in.txt

struct v2f_vertex_lit {
    vec2 uv;
    vec4 diff;
    vec4 spec;
};
struct v2f_img {
    vec4 pos;
    vec2 uv;
};
struct appdata_img {
    vec4 vertex;
    vec2 texcoord;
};
struct v2f {
    vec4 pos;
    float fog;
    vec2 uv;
    vec2 uv2;
    vec3 I;
    vec3 TtoW0;
    vec3 TtoW1;
    vec3 TtoW2;
};
struct appdata_tan {
    vec4 vertex;
    vec4 tangent;
    vec3 normal;
    vec4 texcoord;
};
uniform sampler2D _BumpMap;
uniform samplerCube _Cube;
uniform sampler2D _MainTex;
uniform vec4 _ReflectColor;

vec4 UnpackNormal( in vec4 packednormal );
vec4 frag( in v2f i );
vec4 UnpackNormal( in vec4 packednormal ) {
    vec4 normal;
    normal.xy  = ((packednormal.wy  * 2.00000) - 1.00000);
    normal.z  = sqrt( ((1.00000 - (normal.x  * normal.x )) - (normal.y  * normal.y )) );
    return normal;
}
vec4 frag( in v2f i ) {
    vec4 normal;
    vec4 texcol;
    vec3 wn;
    vec3 r;
    vec4 c;
    vec4 reflcolor;
    normal = UnpackNormal( texture2D( _BumpMap, i.uv2));
    texcol = texture2D( _MainTex, i.uv);
    wn.x  = dot( i.TtoW0, normal.xyz );
    wn.y  = dot( i.TtoW1, normal.xyz );
    wn.z  = dot( i.TtoW2, normal.xyz );
    r = reflect( i.I, wn);
    c = (gl_LightModel.ambient * texcol);
    c.xyz  *= 2.00000;
    reflcolor = ((textureCube( _Cube, r) * _ReflectColor) * texcol.w );
    return (c + reflcolor);
}
varying vec4 xlv_FOG;
void main() {
    vec4 xl_retval;
    v2f xlt_i;
    xlt_i.pos = vec4(0.0);
    xlt_i.fog = float( xlv_FOG);
    xlt_i.uv = vec2( gl_TexCoord[0]);
    xlt_i.uv2 = vec2( gl_TexCoord[1]);
    xlt_i.I = vec3( gl_TexCoord[2]);
    xlt_i.TtoW0 = vec3( gl_TexCoord[3]);
    xlt_i.TtoW1 = vec3( gl_TexCoord[4]);
    xlt_i.TtoW2 = vec3( gl_TexCoord[5]);
    xl_retval = frag( xlt_i);
    gl_FragData[0] = vec4( xl_retval);
}