Ground-level light source

blender81 · **Joined:** Thu Aug 19, 2004 3:50 am **Posts:** 81

I have a carry-able lantern that lights up rooms:

However, when I drop the lantern, the ground receives no lighting:

This seems to be the same situation as when you stand next to the wall while holding the flashlight: you're too close to the wall, and so the wall receives no illumination.

Does anyone have a way for the ground to still receive illumination, even when the light source is directly resting on it?

Tron · **Posted:** Thu Aug 09, 2012 10:54 am

The easiest method would probably just be to offset the position of the light source, so that it is positioned a short distance (say 16 units) above the lantern.

whitewolf · **Joined:** Sat Jun 28, 2008 2:17 pm **Posts:** 350

That won't work: if it falls on the face in the direction the lamp is offset, the lamp will be under the floor.

blender81 · **Joined:** Thu Aug 19, 2004 3:50 am **Posts:** 81

Thanks for the tips. I wrote a "think" function that constantly repositions the light source above the lantern:

Code:

   void weapon_lantern_world::thinking()
   {
      while(1)
      {
         if (!$player1.isHolding( self )) //check if the lantern is being held.
         {
            _light.unbind(); //unbind the lightsource from the lantern.
            
            //position the lightsource 24 units above the lantern.
            sys.tracePoint (self.getOrigin(), self.getOrigin() + '0 0 24', MASK_SOLID, self);         
            vector lightpos = sys.getTraceEndPos();   
            _light.setAngles( self.getAngles() );
            _light.setOrigin( lightpos );
         }
         
         sys.waitFrame();
      }
   }

And here's how it looks like in-game:

The Happy Friar · **Posted:** Fri Aug 10, 2012 4:18 am

You could just make a bigger clip model around the mesh.

Doom3world

Ground-level light source

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