The Lens Flare post-process shader simulates the lens flare effects often produced when cameras are pointed toward bright objects. Components of the effect include central glow, random and regular light streaks, halo and ghost images of lens iris.
Lens flares is a post processing effect: it means that it is applied once the rendered image has been created. To enable the Lens Flares option, just open the Shading panel by choosing the Managers > Shading command select the Rendering tab, and check the Lens Flare button on.
In the Parameters column, the lens pop up displays the nine standard "lens types" provided. They are:
"standard"
Standard camera. One circular ghost and random light streaks.
"lens35"
Mixed light streaks (random and regular), five ghost images.
"lens50"
Random light streaks, accentuated bloom, eight ghost images.
"lens105"
Mixed random and regular streaks, fuzzy halo, and twenty rounded polygonal ghosts.
"polygon"
As "standard", but with rounded polygonal ghost.
"polygon35"
As "lens35" but with sharp polygonal ghosts.
"polygon50"
As "lens50" but with sharp polygonal ghosts.
"spark"
Mixed random and regular streaks, no halo or ghosts.
"star4"
Slightly accentuated bloom, regular streaks.