Menu: View->Render
Mouse menu: Render
Status toolbar: 
Using this option changes the way the model is viewed. There are three standard GiD render modes:
- Normal: This is the usual way of viewing the image. You can see both the geometry and mesh including all definition lines.
- Flat: Solid model with flat illumination and lines.
- Smooth: Solid model with smooth illumination (better quality).
Several options related with render can be set:
Menu: View->Render->Change light dir
Mouse menu: Render->Change light dir
With this option you can change the vector of the light direction interactively; this can also be done by entering the vector components in the command line.
Menu: View->Render->Customize
Mouse menu: Render->Customize
You can define your own rendering with its own properties.
You can choose how to visualize each entity, and save these properties in a new Render mode, which will appear in the View->Render menu or in the mouse menu, next to standard GiD render modes.
Menu: View->Render->Reflection
Mouse menu: Render->Reflection
Activate or deactivate the reflection defined.
Menu: View->Render->Define reflection
Mouse menu: Render->Define reflection
Visual effect to simulate a mirroring surface. A cubic environment with rectangular images is projected over the model.
The six images can be predefined patterns or user defined (from an image file). 
Note: The quality of visualization is controlled via preferences (see Preferences).