pushTriangle method

void pushTriangle(num a, num b, num c, Material material,)

Implementation

void pushTriangle(num a,num b,num c, Material material){
  RenderableVertex v1 = _vertexPool[ a.toInt() ];
  RenderableVertex v2 = _vertexPool[ b.toInt() ];
  RenderableVertex v3 = _vertexPool[ c.toInt() ];
  if(!checkTriangleVisibility( v1, v2, v3 )) return;

  if(material.side == DoubleSide || checkBackfaceCulling( v1, v2, v3 )){
    _face = getNextFaceInPool();
    _face.id = object.id;

    _face.v1.copy( v1 );
    _face.v2.copy( v2 );
    _face.v3.copy( v3 );

    _face.z = ( v1.positionScreen.z + v2.positionScreen.z + v3.positionScreen.z ) / 3;
    _face.renderOrder = object.renderOrder; // face normal

    _vector3.sub2( v3.position, v2.position );
    _vector4.sub2( v1.position.toVector4(), v2.position.toVector4());
    _vector3.crossFromVector4( _vector4 );

    _face.normalModel.setFrom( _vector3 );
    _face.normalModel.applyMatrix3( normalMatrix ).normalize();

    for(int i = 0; i < 3; i++){
      Vector3 normal = _face.vertexNormalsModel[i];
      normal.copyFromArray(normals);//arguments[i] * 3
      normal.applyMatrix3(normalMatrix).normalize();
      Vector2 uv = _face.uvs[i];
      if(uvs.isNotEmpty){
        uv.copyFromArray(uvs);//arguments[i] * 2
      }
    }

    _face.vertexNormalsLength = 3;
    _face.material = material;

    if ( material.vertexColors ) {
      _face.color.copyFromArray( colors, (a * 3).toInt() );
    }
    _renderData.elements.add( _face );
  }
}