dipityPix app

Tuesday, December 22, 2009

Ambient occlusion

I am doing some reading on ambient occlusion and I would appreciate pointers to recent papers. Here is a TR from Morgan M. on using the analytic form factor equation which is cool. Please reply for other things I should read!

30 comments:

repi said...

The Nvidia Horizon-based Screen-space Ambient Occlusion technique (HBAO) is probably the highest quality sampling-based method:

http://developer.nvidia.com/object/siggraph-2008-HBAO.html

Mikkel said...
This comment has been removed by the author.
pixelmager said...
This comment has been removed by the author.
pixelmager said...

- and of course the depth-peeling extension, also by you clever guys at nvidia :)
http://developer.download.nvidia.com/presentations/2009/SIGGRAPH/Bavoil_MultiLayerDualResolutionSSAO.pdf

Tobias Ritschel's SSGI-version is interresting as well
http://www.mpi-inf.mpg.de/~ritschel/Papers/SSDO.pdf

Oh, and of course the "for-free" ambient occlusion while tracing distance-fields by IƱigo Quilez

http://www2.imm.dtu.dk/visiondag/VD09/graphical/slides/Inigo.pdf

strattonbrazil said...

GPU Rendering of Secondary Effects used a layered depth cube, which provided a pretty decent structure for ray tracing the ambient occlusion interactively in world space (although it's more of a followup and not specific to the actual paper which is just the structure).

http://wwwcg.in.tum.de/Research/data/Publications/vmv07.pdf

Eric said...

Some other SSAO links at http://www.realtimerendering.com/blog/tag/ssao/ (search on "SSAO", duh). Also see the I3D proceedings for some recent work. I look forward to the article on "Volumetric Obscurance", which from the title I would suspect is (perhaps) related - ask Peter-Pike for a preprint, maybe?

NeilM said...

Check out the R5 engine. It implements SSAO and its author talks about how he did it in his blog.

http://blog.nextrevision.com/?m=200910

risdiansyah said...

architecture style in 3d visualization-modeling-animation
http://archv3nture.blogspot.com

wsxwhx655 said...
This comment has been removed by a blog administrator.
lacewell said...

Many production studios use the point-based ambient occlusion built into PRMan. You can find a nice description of that from Per C. here:

http://graphics.pixar.com/library/PointBasedColorBleeding/paper.pdf

yosh64 said...

Not sure if these are the sorta documents ya looking for, but there seems to be a chapter in each of the GPU Gems books, which are now available for free.

Those being,

GPU Gems - "Chapter 17. Ambient Occlusion"

GPU Gems 2 - "Chapter 14. Dynamic Ambient Occlusion and Indirect Lighting"

GPU Gems 3 - "Chapter 12. High-Quality Ambient Occlusion"

You might also be interested in a related post (a very old one) on Thad's Coding Blog, "Fast ambient occlusion".

And also a more recent post on Infinity, "Deferred lighting"

Hope this helps.

yosh64 said...

Also, I'd recommend you look into any Screen Space Ambient Occlusion techniques, I think they seem to work pretty well, better than ya might think.

Hmm, guessing ya would already know all this sorta thing anyhows.

Neil G said...

I noticed that Mateu Sbert has a new paper on AA in the latest IEEE CG
http://www.computer.org/portal/web/csdl/doi/10.1109/MCG.2010.19

HTH
Neil

Bluehaze said...

I do computer graphics. Take a look:
http://bluehazegraphics.blogspot.com/

Color Experts said...

It was really gr8 post!
thanks for sharing...
I love it! :)

Color Experts
Image Masking

Tuhin said...

Well, I got so many help from Computer Graphics solution site cgmonthoro.com
Its really helpful. You may take some idea from here.

javieth said...

I like to see a good illustration in the websides, even if the text isn´t good, i think the graphics have too much importance.I must to say this blog contain a great graphics and that´s what i´ve been looking for.Actually
costa rica investment opportunities
introduce wonderful graphics about different things.

Clipping Path Image said...

What a brilliant post. Fabulous. Keep it up.

Clipping Path Image said...

WOW! What a brilliant post. Thanks for sharing...
clipping path service

Online Photoshop Clipping Path, Masking Service said...

I would like to have an assistance from your great site to introduce Clipping Path BD (CPBD)as a quality clipping path service provider company at low cost. Thanks for sharing your blog post.
http://www.clippingpathbd.com/

Online Photoshop Clipping Path, Masking Service said...

A real thank to you as today I am very happy to see my comments on your blog site. Your kind cooperation has been appreciated by Clipping Path BD (CPBD).

vijaysaw said...

You have shared such a nice blog post!You have done a great job.Keep it up

Cards Games

Habib Zaman said...

Simply say, congrats and keep it up!

Clipping Path Job said...

A dreamy blog post where I should stay for more time.

jui fardin said...

clipping paths
Nice blog

Jason B. Mixon said...

This information is very interesting, I really enjoyed, I would like get more information about this, because is very beautiful, thanks for sharing!


clipping path

Erin R. Brewer said...

thanks for sharing such important info with us.
clipping path service

clippingpathsaffron said...

your blogsite Design is beutiful

clippingpathsaffron said...

The stuff you are using that is very useful and helpful

Md Enamul Hoq said...

Thank you for this sharing . Keep continue sharing . Cut Out Photo | Image Masking Service | Photo Cut Out