parseMesh static method

String parseMesh(Mesh object, [ bool usingParse = false ])

Implementation

static String parseMesh(Mesh object,[bool usingParse = false]){
  String output = '';
  if(!usingParse){
    output = 'solid exported\n';
  }
  BufferGeometry? geometry = object.geometry;
  final Float32BufferAttribute? vertices = geometry?.getAttribute(Attribute.position);
  final indices = geometry?.getIndex();
  if(indices != null){
    for(int i = 0, l = indices.length; i < l; i+=3) {
      final faces = [indices.getX(i)!.toInt(), indices.getX(i+1)!.toInt(), indices.getX(i+2)!.toInt()];
      String verts = '';
      List<Vector3> vecsToNormal = [];
      for(int j = 0; j < 3; j ++){
        vecsToNormal.add(Vector3(vertices!.getX(faces[j])!.toDouble(),vertices.getY(faces[j])!.toDouble(),vertices.getZ(faces[j])!.toDouble()));
        verts += '\t\t\tvertex ${vecsToNormal[j].x} ${vecsToNormal[j].y} ${vecsToNormal[j].z}\n';
      }
      Vector3 toNormal = _computeNormal(vecsToNormal[0],vecsToNormal[1],vecsToNormal[2]);
      output += '\tfacet normal ${toNormal.x} ${toNormal.y} ${toNormal.z}\n';
      output += '\t\touter loop\n';
      output += verts;
      output += '\t\tendloop\n';
      output += '\tendfacet\n';
    }
  }

  if(!usingParse){
    output += 'endsolid exported\n';
  }

  return output;
}