// configuration des collisions de la map
	bibliotheque.g_newtonmap = NewtonCreateTreeCollision(bibliotheque.nWorld, NULL);
	NewtonTreeCollisionBeginBuild(bibliotheque.g_newtonmap);
	u32 cMeshBuffer, j;
	int v1i, v2i, v3i;
	IMeshBuffer *mb;

	float vArray[9]; // vertex array (3*3 floats)

	int tmpCount = 0;

	for (cMeshBuffer=0; cMeshBuffer < bibliotheque.node_terrain[0]->getMesh()->getMeshBufferCount(); cMeshBuffer++)
	{	
		mb = bibliotheque.node_terrain[0]->getMesh()->getMeshBuffer(cMeshBuffer);

		video::S3DVertex* mb_vertices = (irr::video::S3DVertex*)mb->getVertices();

		u16* mb_indices  = mb->getIndices();

		// add each triangle from the mesh
		for (j=0; j < mb->getIndexCount(); j+=3)
		{
			v1i = mb_indices[j];
			v2i = mb_indices[j+1];
			v3i = mb_indices[j+2];
	
			vArray[0] = mb_vertices[v1i].Pos.X;
			vArray[1] = mb_vertices[v1i].Pos.Y;
			vArray[2] = mb_vertices[v1i].Pos.Z;
			vArray[3] = mb_vertices[v2i].Pos.X;
			vArray[4] = mb_vertices[v2i].Pos.Y;
			vArray[5] = mb_vertices[v2i].Pos.Z;
			vArray[6] = mb_vertices[v3i].Pos.X;
			vArray[7] = mb_vertices[v3i].Pos.Y;
			vArray[8] = mb_vertices[v3i].Pos.Z;

			NewtonTreeCollisionAddFace(bibliotheque.g_newtonmap, 3, (float*)vArray, 12, 1);
		}

	}
	NewtonTreeCollisionEndBuild(bibliotheque.g_newtonmap, 0);
	bibliotheque.g_newtonmapbody = NewtonCreateBody(bibliotheque.nWorld, bibliotheque.g_newtonmap);