glBegin(GL_TRIANGLES);
		glEnable(GL_BLEND);	
			glColor4f(la->r,la->g,la->b,0.2);
			glVertex3fv(vvec);
			glColor4f(la->r,la->g,la->b,0.1);
			glVertex3fv(vec);
			glColor4f(la->r,la->g,la->b,0.0);
			glVertex3fv(lvec);
		glDisable(GL_BLEND);
		glEnd();