[GDC 2011] Unreal Technology Demo

Ok so no preview samples? It sounded to good to be true the be honest ;(

 

On slide 19, it says the screen space subsurface scattering takes Depth and Normal input into account. So why doesn't it work with ears? And why was I led to believe for the past few years that the engine should somehow be capable of rendering this?

 

Ears require back scatter to look proper - light coming from behind them. Not sure how it's implemented in offline renderers either, but I can see how it's problematic in realtime renderers.

 

It woud also need the information about the backfaces on ears.
Currently the depth information is only for the first intersection of camera facing polygons.

If one would render depth buffer for backfacing polygons it would become easier.
Check the volume between forward and back facing polygons, should be enough information for an approximation for sss.
Basically inverted SSAO should do ok, especially if combined to stuff in frostibes paper.

 

Nice thanks. Was an interesting and accessible read.

And by the way, was reading this PDF on Ubuntu and I'm very impressed with the PDF reader software that comes default. Amazingly fast and useful.

 

They make so much fuss about it being real time and then don´t release a real time demo executable. Sigh. I´ve seen videos before. There is nothing impressive about a video. I can make a video. My mother can make a video. Come on, just "leak" it if you´re afraid of having to support it.

 

Unreal Engine tech demos have never been made public AFAIK so I don't see why this one would be different.

 

If they wanted to demonstrate the technology. I think that is kind of the point of demos.

 

Perhaps they simply don't want to share the assets.

 

high rez version...

http://uk.download.nvidia.com/gefor...eal-time-demo/Samaritan_Realtime_Demo_Sm_.mp4

 

Downloading...!

 

It looks pretty good, would be nice if some of those features make it into the next Batman. Hopefully nVidia throws in some more marketing $$$ to finance PC (or nVidia ) exclusive tech.