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mobile-query-three-vendor-three.js-modifiers-ExplodeModifier.js / js



  
Make all faces use unique vertices so that each face can be separated from others
author: alteredq / alteredqualia.com/

  
  
  THREE.ExplodeModifier = function () {
  
  };
  
  THREE.ExplodeModifier.prototype.modify = function ( geometry ) {
  
          var vertices = [];
  
          for ( var i = 0, il = geometry.faces.length; i < il; i ++ ) {
  
                  var n = vertices.length;
  
                  var face = geometry.faces[ i ];
  
                  if ( face instanceof THREE.Face4 ) {
  
                          var a = face.a;
                          var b = face.b;
                          var c = face.c;
                          var d = face.d;
  
                          var va = geometry.vertices[ a ];
                          var vb = geometry.vertices[ b ];
                          var vc = geometry.vertices[ c ];
                          var vd = geometry.vertices[ d ];
  
                          vertices.push( va.clone() );
                          vertices.push( vb.clone() );
                          vertices.push( vc.clone() );
                          vertices.push( vd.clone() );
  
                          face.a = n;
                          face.b = n + 1;
                          face.c = n + 2;
                          face.d = n + 3;
  
                  } else {
  
                          var a = face.a;
                          var b = face.b;
                          var c = face.c;
  
                          var va = geometry.vertices[ a ];
                          var vb = geometry.vertices[ b ];
                          var vc = geometry.vertices[ c ];
  
                          vertices.push( va.clone() );
                          vertices.push( vb.clone() );
                          vertices.push( vc.clone() );
  
                          face.a = n;
                          face.b = n + 1;
                          face.c = n + 2;
  
                  }
  
          }
  
          geometry.vertices = vertices;
          delete geometry.__tmpVertices;
  
  }
  


(C) Æliens 04/09/2009

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