highp vec4 _surface_diffuse_color;
highp vec2 _surface_diffuse_texcoord;
highp float _surface_diffuse_intensity;
    
lowp float _surface_shininess;
lowp  vec3 _surface_specular_color;
highp vec2 _surface_specular_texcoord;
    
lowp float _surface_alpha;
lowp  vec3 _surface_normal;
highp vec3 _surface_position;
highp vec3 _surface_view;