Difficulties with RayCast [SOLVED]

[Auradrummer]

Hello guys,

Raycasting is working right here, but I cannot find an way to detect if raycast is not intersecting the track anymore. My callback filter is this:

Code: Select all

float callBackFilter (const NewtonBody * body, const dFloat * normal, int collisionID, void* userData, dFloat interset)
{
       rayDir = (int)userData;
       ship.colID = collisionID;
       if (collisionID != 258) // the car is the collision # 258. This avoids that raycast hits the car and reacts
       {
          if (rayDir == 0)
          {
             ship.lfHeight = interset;
          };
          if (rayDir == 1)
          {
             ship.rfHeight = interset;
          };
          if (rayDir == 2)
          {
             ship.lrHeight = interset;
          };
          if (rayDir == 3)
          {
             ship.rrHeight = interset;
          };
       }
       else
       {
           ship.lfHeight = 0;
           ship.rfHeight = 0;
           ship.lrHeight = 0;
           ship.rrHeight = 0;
       };
};

[Auradrummer]

Problem solved, here goes the solution:

At WIKI we have this phrase, that I passed over:
NewtonWorldRayFilterCallback filter - user defined function to be called for each body hit during the ray scan.

This means that not matters what is inside raycast filter, it will be called only when we have a hit.

So, I made an 'interset = 0' before raycasting. If callback is called (we had a hit), interset receives an value, otherwise, interset is always 0. Easy and fast!