bgfx/3rdparty/glsl-optimizer/tests/vertex/zun-Test_CgNormals-in.txt

mat3 xll_constructMat3( mat4 m) {
  return mat3( vec3( m[0]), vec3( m[1]), vec3( m[2]));
}
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;
    vec4 color;
};
struct appdata_base {
    vec4 vertex;
    vec3 normal;
    vec4 texcoord;
};


v2f vert( in appdata_base v );
v2f vert( in appdata_base v ) {
    v2f o;
    vec3 normal;
    o.pos = ( gl_ModelViewProjectionMatrix * v.vertex );
    normal = ( xll_constructMat3( gl_ModelViewMatrixInverseTranspose) * v.normal );
    o.color = vec4( ((normal * 0.500000) + 0.500000), 1.00000);
    return o;
}
void main() {
    v2f xl_retval;
    appdata_base xlt_v;
    xlt_v.vertex = vec4( gl_Vertex);
    xlt_v.normal = vec3( gl_Normal);
    xlt_v.texcoord = vec4( gl_MultiTexCoord0);
    xl_retval = vert( xlt_v);
    gl_Position = vec4( xl_retval.pos);
    gl_FrontColor = vec4( xl_retval.color);
}