July 29, 2013

NVIDIA's Ira and ‘Project Logan’

NVIDIA has led the way for a new technological breakthrough which will revolutionize the way mobile technology and design for games will be achieved. This tremendous leap forward in graphics technology allows for the utmost realism of the human face in graphic design on mobile devices in the near future.

While delivering a highly realistic representation of the human face in stunning 4K rendered in real time, it must use over 250 watts of power to run the Titan demo. NVIDIA's Project Logan is now on the verge of bringing this technology to the mobile market.

Ira is simply one of the many demos created by NVIDIA, but more than that, it is also NVIDIA’s breakthrough demo that encompasses all the elements that make the human face look real. Originally, Ira has only been run on the GeForce Titan, the most powerful single GPU offered on the market. What does this mean?

Below is the demo video for Ira and Project Logan:


After the development and reveal of Ira at the GPU Technology Conference earlier this year, NVIDIA has been working on the future. Project Logan, which entails for Ira like graphics to be integrated with the impending next-generation mobile technology. A defining key element of Project Logan is a mobile Kepler GPU, which will allow this technology to be used in upcoming mobile devices. The Kepler architecture was designed to be easily scalable from supercomputers to mobile devices.

The initial run on the GeForce Titan gave more features and a more realistic performance than the Ira on the mobile Kepler demo. Although the mobile Kepler GPU does not provide the full performance capabilities to that of the GeForce Titan, the mobile device still makes it possible to create a convincing realism using Ira.

One of the major differences between the two is sub-surface scattering, the way that light passes and refracts through the skin, the defining characteristic to create a human likeness. Titan allows for several render passes through the skin, with other additional features, such as improved texture. With Project Logan, each shader was simplified to use a single pass, while also simplifying their other features. Although with the minimal reduction of quality, we do not get the same realism or resolution, stepped down to 1080p, that can be achieved on Titan but Logan opens the door to the mobile use of Ira with much faster performance and significant reduction in power consumption.The mobile Kepler demo runs on the standard power profile of mobile devices at 2-3 watts still produces impeccable likeness to a real human in real time, which is beyond anything we have ever seen to this day in graphics technology.

This new creation brings tremendous promise to any low-power mobile device and enhances any human elements in the work that graphic and game designers may have in the future.

Source: NVIDIA