基于LOD的大规模真实感室外场景实时渲染技术的初步研究 part II&III

基于LOD的大规模真实感室外场景实时渲染技术的初步研究 part II&III(3) Begin

       Push the root node to the cur_Queue

    level = 0

     Loop while Not reach the Full resolution

      {

              For Each Quad-Tree Node in Cur_Queue

              {

                            If(Node is not inside the view frustum)

                            {

                                   Simple Skip this Node

}

else if(level = Full Resolution level –1 )

{

       Draw The Node

}

                            else if( NodeCanSubdivid() and NodeNeedActive())

                            {

                                          Sub Divide this Node

                                          Set all four sub-node flag to VS_ACTIVE

                                          Push the for sub-node to the next_level_Queue

                            }

                            else

                            {

                                          Disable The Node

                                          Set all four sub-node flag to VS_DISABLE

                                          Draw this Node

                            }End if

              } End for

              Swap (cur_Queue,Next_level_Queue);

              level  = next level

       }End Loop

End Function