code: public void setEmissive(float emissive[]){
          for(int i = 0; i<emissive.length;i++)
              this.emissive[i]=emissive[i];
          Em = true;
      }
docs: Sets the emissive color of the material used for drawing shapes drawn to the screen.
  
  @param emissive
  The emissive color of the Material.