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BadKarma
05-07-2003, 10:04 AM
ive seen lots of shorts, rendered images etc, where you have the character and/or object say standing on a desert landscape where it looks to have the desert go allllllllllll the way back to some mountains in the background, i dont think its a good idea to have a very long plane wiv poly mountains, coz you would have to set the clipping value extremely high, and it would take longer to render...

so how else can you do it? please help i have a project to hand in and i really need this...

**Edit: Here is an example http://www.phil.id.au/images/3d/wip/rocketbot-5.jpg**

BadKarma

alexx
05-07-2003, 10:30 AM
i dont think changing clipping values of the camera will take longer to render.
it will only be less accurate concerning z-buffer which can lead to real render artifacts in maya.

to workaroud that problem it is wise to render your stuff in passes anyway. so the character with its shadow in one pass, with a very close set of clipping planes and the background in 1 or 2 passes (flat area and mountains) as seperate passes with the correct clipping planes as well..

cheers

alexx

BadKarma
05-07-2003, 10:46 AM
k cheers alexx i will give dat a shot but i dont know if its write or not... just seems a bit off...

BadKarma

iC4
05-07-2003, 11:40 AM
he's right

the best way is to render in layers, and use for the groundplane some DOF, and blur the mountains a bit

BadKarma
05-07-2003, 12:57 PM
DOF? depth of field is that? so i do have to model the floor and mountains then?

alexx
05-07-2003, 03:00 PM
if you have a good photograph you can of course camera project the "real" background to stand in geometry..
that gives high realism and very low render times

cheers

alexx

BadKarma
05-07-2003, 03:10 PM
Originally posted by alexx
camera project the "real" background to stand in geometry

Excuse me?! lol can u write a lil bout this is you have time...

BadKarma

alexx
05-07-2003, 03:32 PM
huh. that would be a quite longer thing to write..

but there is a bunch of tutuorials about that on the net..
you can as well check out www.cgchallenge.com and see the current challenge called outpost.
camera projection is used in all of them afaik.
see the threads from the better ones (higher score). i think there is some links in those as well.

cheers

alexx

TheWraith
05-07-2003, 03:34 PM
o... beat me to it

alexx
05-07-2003, 04:13 PM
example:

this was a photo:
http://bigott.gmxhome.de/pics/foto.jpg

this is the according geometry:
http://bigott.gmxhome.de/pics/wire.jpg

and this you can do with it (with really little effort and time):


movie 442k (http://bigott.gmxhome.de/pics/test.avi )

cheers

alexx

kiaran
05-07-2003, 07:05 PM
Holy $h1T. !

That little animation is pretty cool. I've gotta learn this technique!
:eek:

BadKarma
05-07-2003, 07:25 PM
alexx, mate... its too hard i cant find nething.... but im still looking. oh and that animation of your island... dat looks dat good how do you get to move a camera around an damn image plane?! lol

nice work fella.

**off ot learn this new skill**

BadKarma

webster
05-07-2003, 07:38 PM
Here a 2 video-tutorials for another 3d-package.
The basics are well explained:

http://www.dvgarage.com/market/product/product.php?prod=maplab&sub=samples

BadKarma
05-07-2003, 09:28 PM
awww cheers fella only samples tho n im only 18 i havent got dat kinda money cheers tho man. the the tutorial helped a bit bout adding the simple geometry :D

BadKarma

alexx
05-07-2003, 10:32 PM
cam projection is something really cool, easy, fast and good looking when applicable.
i got to learn about the idea from eric chauvin (he did stuff like that for a lot of film projects including start wars, contact and so on..).

in the beginning i only way like: hä? you wanna fly through that picture you took with your camera??
but then it was really the coolest thing since digital watches :)

cheers

alexx

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