​http://www.opengl.org/resources/features/KilgardTechniques/LensFlare/

​http://www.codeworx.org/opengl_tut44.php

​http://www.gamedev.net/reference/articles/article874.asp

​http://www.gamedev.net/reference/articles/article813.asp

​http://images.google.ch/imgres?imgurl=http://chuggnut.com/tutorials/lensflare/samples.jpg&imgrefurl=http://chuggnut.com/tutorials/lensflare/lensflare.html&h=256&w=256&sz=8&tbnid=oZmbV6-DI_i1tM:&tbnh=107&tbnw=107&hl=de&start=41&prev=/images%3Fq%3Dlensflare%2B%2B%26start%3D40%26svnum%3D10%26hl%3Dde%26lr%3D%26sa%3DN