예제 #1
0
 public void RetrieveVisibleMesh(Plane[] planes, Vector3 viewCenter, float[] lodPolicy, MTArray <uint> visible)
 {
     if (GeometryUtility.TestPlanesAABB(planes, Bound))
     {
         if (mSubNode == null)
         {
             float distance = Vector3.Distance(viewCenter, Bound.center);
             for (uint lod = 0; lod < lodPolicy.Length; ++lod)
             {
                 if (distance <= lodPolicy[lod])
                 {
                     uint patchId = (uint)MeshID;
                     patchId <<= 2;
                     patchId  |= lod;
                     visible.Add(patchId);
                     break;
                 }
             }
         }
         else
         {
             for (int i = 0; i < 4; ++i)
             {
                 mSubNode[i].RetrieveVisibleMesh(planes, viewCenter, lodPolicy, visible);
             }
         }
     }
 }
예제 #2
0
 public void GetVisibleMesh(Plane[] planes, Vector3 viewCenter, float[] lodPolicy, MTArray <uint> visible)
 {
     //TODO 原理是只有这个块完全在视野内 在会显示 有问题 需要只露出一点点就显示
     if (GeometryUtility.TestPlanesAABB(planes, Bound))
     {
         if (m_SubNodes == null)
         {
             float distance = Vector3.Distance(viewCenter, Bound.center);
             for (uint lod = 0; lod < lodPolicy.Length; ++lod)
             {
                 if (distance <= lodPolicy[lod])
                 {
                     uint patchId = (uint)MeshID;
                     patchId <<= 2;
                     patchId  |= lod;
                     visible.Add(patchId);
                     break;
                 }
             }
         }
         else
         {
             for (int i = 0; i < 4; ++i)//递归一下
             {
                 m_SubNodes[i].GetVisibleMesh(planes, viewCenter, lodPolicy, visible);
             }
         }
     }
 }