gua_world_position    = gua_varying_world_position;
gua_normal            = normalize(gua_varying_normal);
gua_tangent           = normalize(gua_varying_tangent);
gua_bitangent         = normalize(gua_varying_bitangent);
gua_texcoords         = gua_varying_texcoords;
gua_color             = gua_varying_color;
gua_roughness         = gua_varying_roughness;
gua_metalness         = gua_varying_metalness;
gua_emissivity        = gua_varying_emissivity;
gua_flags_passthrough = false;
gua_alpha             = 1.0;
