*3D Computer Graphics and Virtual Reality DOI: http://dx.doi.org/10.5772/intechopen.102744*

seems lit. This way, it is not necessary to add the point light in the environment and it will lighten the computational core. Details are explained in Section 3.3. But it is necessary to keep in mind, if priority is to develop application with high rate of frames per second, it can affect the realistic look of the scene. Especially, for virtual headsets as their computational cores are not so advanced yet. **Figure 5** shows the traffic light with an implementation of point light in red color and with shadows settings.
