Projection Design

“Projection Design” offers a hands-on approach to the design, planning and execution of digital projections in a variety of performance spaces by using a combination of industry standard and open source research software tools. This blog will serve as an online text for the developing book, "Technical Ecstasy" and link for the web-readings, online tutorials,software resources historical examples, video art and performance examples and essential class communications for Projection Design class taught by Patrick Pagano

Monday, February 3, 2014

HAP Codec

I researched the Hap Video Codec to find out a little bit more on what it means and how it pertains to this class. I found that this is actually a very useful and highly anticipated download. Instead of using CPU to decode video frames, Hap passes compressed image data directly to your computers graphics card to perform hardware accelerated decompression of movies during playback. Essentially, the burden is shifted from your CPU to your GPU and the Hap makes it possible to use more movies and work at higher resolutions than typical CPU-bound codecs.

There are three different Hap Codecs to choose from: Hap, Hap Alpha, and Hap Q. Hap is the simplest version, offering the lowest data rates for playing back the most clips at a time. Hap Alpha is just like Hap but offers support for transparency and Hap Q is the best, offering better image quality at a higher data rate.

I feel as though this download could help with the speed issues I've been having with my computer. While working in real-time with so many videos playing at once, my Mac gets bogged down and starts to lag. The greatly reduced CPU load during movie playback will allow me to move forward and work in the moment in my future digital projects. :)

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