Sometimes you need to view your model without the effect of lighting and shading to see the true color of the material or texture you are working with.
Turning on Flat Lighting removes the effect of any lighting and shading that occur by default and lets you accurately see the material color or texture applied to the model.
Flat Lighting is useful in situations where you want to view your model as a silhouette and is particularly useful when you need to sample a color from a model when painting as it provides a more accurate representation of the base color.
To turn on Flat Lighting do either of the following:
Display a model as a silhouette