Method generateNormals

Engine/source/environment/meshRoad.cpp:373–413

}

void MeshRoadProfile::generateNormals()
{
   VectorF t, b, n, t2, n2;
   Point3F averagePt;

   mNodeNormals.clear();

   // Loop through all profile line segments
   for(U32 i=0; i < mNodes.size()-1; i++)
   {
      // Calculate normal for each node in line segment
      for(U32 j=0; j<2; j++)
      {
         // Smoothed Node: Average the node with nodes before and after.
         // Direction between the node and the average is the smoothed normal.
         if( mNodes[i+j].isSmooth() )
         {
            b = Point3F(0.0f, 0.0f, 1.0f);
            t = mNodes[i+j-1].getPosition() - mNodes[i+j].getPosition();
            n = mCross(t, b);
            n.normalizeSafe();

            t2 = mNodes[i+j].getPosition() - mNodes[i+j+1].getPosition();
            n2 = mCross(t2, b);
            n2.normalizeSafe();

            n += n2;
         }
         // Non-smoothed Node: Normal is perpendicular to segment.
         else
         {
            b = Point3F(0.0f, 0.0f, 1.0f);
            t = mNodes[i].getPosition() - mNodes[i+1].getPosition();
            n = mCross(t, b);
         }

         n.normalizeSafe();
         mNodeNormals.push_back(n);
      }
   }
}

void MeshRoadProfile::generateEndCap(F32 width)
{