= Realistic Camera - Lens Flares =

The original project proposal can be found at JulienChaumond/FinalProjectProposal.

My idea was to extend the realistic camera model in order to simulate some of the interesting
lens-internals related phenomenas in real cameras: lens flares and
scattering around the sun.

=== Final Image ===



=== Motivations ===

Sources of inspiration for this project included:

attachment:mob106_1158392772.jpg
attachment:Mt_Buller_800.jpg
attachment:flare800.jpg

== Fresnel Equations ==

attachment:lenses.gif
attachment:ray_correct.PNG

attachment:Fresnel.png
attachment:Rs.png
attachment:Rp.png
attachment:Fresnel2.png

attachment:rayreflect.PNG
attachment:raymulti.PNG

== Light Ray Tracing ==

attachment:pathtracing.PNG
attachment:lightraytracing.PNG

== Mie Scattering ==

attachment:miescattering.PNG

== Building the scene ==

attachment:maya.png

Environment light

== Experiments ==

=== Influence of the position of the sun ===

attachment:flare1.PNG
attachment:flare3.PNG
attachment:flare4.PNG

=== Shape of the aperture diaphragm ===

attachment:600px-Lens_aperture_top.jpg

=== Background cloud texture ===

I tried to use a cloudy sky as a texture for the background, however it looked kind of funny so I ended up not using it.

attachment:cloudtexture.PNG
attachment:hoover_art.PNG

== Conclusion ==

attachment:cobalt_crash.jpg
attachment:lens_flare.jpg

==== References ====
 1. A Realistic Camera Model for Computer Graphics - http://www.graphics.stanford.edu/papers/camera/

 2. Understanding Lens Flare in Photography - http://www.cambridgeincolour.com/tutorials/lens-flare.htm

 3. http://en.wikipedia.org/wiki/Lens_flare

 4. http://en.wikipedia.org/wiki/Fresnel_equations

 5. Mie Scattering