Posts Tagged ‘lensflare’

Simple Tutorial Shows You How to Change an Object’s Color in Photoshop

One of the basic Photoshop skills that many beginners want to learn early on is how to change something’s color in one of their images (be that an object or someone’s eye color). Well, you’re in luck, because Aaron Nace and Phlearn are here with a simple tutorial that will show you how to do just that, and do it well. Read more…

iPhone 5 Purple Flare: The Problem is the Purple, Not the Flare

An update on the iPhone 5 and “Purplegate“: DPReview has published a pretty in-depth review of the iPhone 5 as a camera — a review that has 1 of the 5 pages dedicated to examining the purple haze issue that has been widely discussed in recent days.
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Researchers Come Up With Quick Way of Generating Realistic Lens Flare

Artificial lens flare is an important part of making certain computer generated scenes look realistic, but up to this point creating realistic lens flare has been a task that requires a good deal of processing power. Now, researchers have come up with a way to simulating lens flare quickly and accurately, taking into account a large number of physical factors that cause the phenomenon:

The underlying model covers many components that are important for realism, such as imperfections, chromatic and geometric lens aberrations, and antireflective lens coatings.

The video above discusses how the technology works, and also touches on the science behind lens flares. The method is patent-pending, and will be presented later this year at SIGGRAPH 2011.

Physically-Based Real-Time Lens Flare Rendering [Max-Planck-Institut Informatik]