unbiased algorithms

fabF · Post by **fabF** » Mon Sep 25, 2006 3:52 am

Hi

Indigo rocks and I'd like to learn a little about monte carlo algorithms and so on.Maybe someone could give me a link to such algorithms in c++ ? I'd like to find also some small open source projects where I could see ray-tracing or radiosity source codes ... In the great lines, how many rendering categories exist and how is it running technically ?

Thanks,
Fabian

Kosmokrator · Post by **Kosmokrator** » Mon Sep 25, 2006 4:17 am

YEA ME TOO!!!

ThatDude33 · Post by **ThatDude33** » Mon Sep 25, 2006 5:01 am

i wrote a raytracer a while ago

Here's an image produced by it.

Featurelist-

Diffuse Shading
Reflection
Point Lights
Area Lights
Soft Shadows
Supersampling

find the source here (.cpp files

http://rapidshare.de/files/34292036/ice ... 1.zip.html

fabF · Post by **fabF** » Mon Sep 25, 2006 6:31 am

Thanks a lot ! Here's what I understand from it :

for each row
for each line
5 times per pixel (supersampling ?)
calculate ray destination
if ray intersects an object then
calculate pixel rgb with object material
...

I guess this algorithm is not complete

Do you have an idea how other rendering methods work in those terms ?

Thanks,
Fabian

WLAD · Post by **WLAD** » Mon Sep 25, 2006 6:50 am

look here http://graphics.stanford.edu/papers/metro/

fabF · Post by **fabF** » Mon Sep 25, 2006 7:23 am

WLAD wrote:look here http://graphics.stanford.edu/papers/metro/

Thanks

Interesting but some parts are too complex for me.An algorithm could help

yponomos · Post by **yponomos** » Mon Sep 25, 2006 10:10 am

hehe, i thought it's vice versa! do you think that a bunch of source
code lines can be easier to understand than an algorithm outline?

playmesumch00ns · Post by **playmesumch00ns** » Mon Sep 25, 2006 11:54 pm

Metropolis sampling is a bit of a pig.

If you want a good grounding learn path tracing first. The best reference I know of is this book: www.pbrt.org

Kosmokrator · Post by **Kosmokrator** » Tue Sep 26, 2006 2:23 am

come on...programming isnt piece of cake!!!espesially for graphics!Fabaf what u looking for?for an complete algorythm?

this is imposible to find!start with simle things and go deeper and deeper!

fabF · Post by **fabF** » Tue Sep 26, 2006 4:40 am

playmesumch00ns wrote:Metropolis sampling is a bit of a pig.

If you want a good grounding learn path tracing first. The best reference I know of is this book: www.pbrt.org

Interesting ! thanks

fabF · Post by **fabF** » Tue Sep 26, 2006 4:42 am

Kosmokrator wrote:come on...programming isnt piece of cake!!!espesially for graphics!Fabaf what u looking for?for an complete algorythm? this is imposible to find!start with simle things and go deeper and deeper!

I was looking for sources like linked above.Interesting to see an early stage project to understand something

manitwo · Post by **manitwo** » Wed Sep 27, 2006 6:35 am

don't know if that is what you are looking for but anyway interesting:
http://www.graphics.cornell.edu/~bjw/papers.html

yponomos · Post by **yponomos** » Wed Sep 27, 2006 8:21 pm

perhaps you could try MiniLight
http://www.hxa7241.org/minilight/minilight.html

from the perceptuum creator.

fabF · Post by **fabF** » Thu Sep 28, 2006 7:28 am

yponomos wrote:perhaps you could try MiniLight
http://www.hxa7241.org/minilight/minilight.html

from the perceptuum creator.

wow ! Thanks a lot !

unbiased algorithms

unbiased algorithms

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