Maya Training

Introduction to Hard Surface Modeling

Maya Training

Interiors and Furniture Vol 1 & 2 - Modeling & Cloth

Maya Training

Shading, Lighting and Rendering the Bedroom in MR

Maya Training

Robot volume one - Modeling with animation in mind

Maya Training

Spach-Alspaugh House the complete courseware

Maya Training

Burt The Cartoon Dinosaur Vol 01 - Modeling

New Maya Training

Robot Volume 02 - Hybrid Rigging
You are here > Home > SimplyMaya Community Forums
Loading

Welcome to Simply Maya

Please Sign in or Sign up for an account

Member Login

Lost your password?

Not a member yet? Sign Up!

Old 04-10-2007, 04:05 AM   #1
Soulrider911
Subscriber
 
Soulrider911's Avatar
 
Join Date: Jul 2007
Location: California
Posts: 180
Thanks: 0
Thanked 0 Times in 0 Posts
Default Hdri Orb??

Hi I understand in order to make an hdri image you need to get an orb...then place the orb in an enviornment you would like to capture the light from and take a picture...but where or what type of orb should i get???thanks so much
Soulrider911 is offline   Reply With Quote
Old 04-10-2007, 04:20 AM   #2
Joopson
Registered User
 
Joopson's Avatar
 
Join Date: Jul 2005
Location: Los Angeles, CA
Posts: 2,313
Thanks: 1
Thanked 33 Times in 33 Posts
Default

thats actually not what you do, but i could be wrong.

you are supposed to take a picture from every angle and then connect them in a program like photoshop. then you need to edit it and save it into 3 different images. make one have blown-out light tones, leave one normal, and in the last one, make the darks dark.
then you use the "merge to HDR" function in photoshop cs3 (or higher) and edit it to your liking. then you save it out as a .HDR file.

its not nearly as simple as taking a picture of a sphere, as far as i know.
__________________
Environment Artist @ Plastic Piranha
www.joopson.com
Joopson is offline   Reply With Quote
Old 04-10-2007, 04:27 AM   #3
LauriePriest
Moderator
 
LauriePriest's Avatar
 
Join Date: May 2003
Location: London
Posts: 1,001
Thanks: 0
Thanked 59 Times in 51 Posts
Default

Soulrider is right joopson.
I had a site where i got my one from ill see if i can find it, try googling chrome spheres or somthing.

And you need a camera that you can change the apature with, but basically you need to take pictures of the chrome ball (they come with a screw hole so you can use a tripod with them), around 8-15 then crompress that into a floating image format in hdrshop or photoshop, You can then change it into an angular map or whatever you want to use it for.

The method joopson is describing is another way to go about doing it however by taking multiple images at different exposures you are taking advantage of the floating format data range as it is designed for. Making the output sharper and more detailed for refelections as well as lighting.
LauriePriest is offline   Reply With Quote
Old 04-10-2007, 05:31 AM   #4
Rhetoric Camel
Subscriber
 
Rhetoric Camel's Avatar
 
Join Date: Dec 2006
Location: Plattsburgh New York
Posts: 1,222
Thanks: 6
Thanked 28 Times in 23 Posts
Default

I saw a tutorial on google the other day, don't remember the site it was, but the guy just used a silver christmas ball ornament, the kind you'd put of the christmas tree. the end product turned out pretty good for being cheap
__________________
- Mike

http://rhetoriccamel.blogspot.com
Rhetoric Camel is offline   Reply With Quote
Old 04-10-2007, 07:26 AM   #5
t1ck135
Registered User
 
t1ck135's Avatar
 
Join Date: May 2004
Location: UK
Posts: 1,991
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Yeah I've created some hdr images and its just like LauriePriest says.
Best option is to go to a garden centre where they usually sell big silver sphere ornaments for the garden. They are very lightweight (hollow) but dont like being bashed about.
The bigger the better as well as not all cameras have super zoom to frame the sphere in well. The further away you are when photographing the sphere at the different exposures, the less you are actually in it too.
Instructions on what to do from there (and software to make the hdr images) are at:
http://www.hdrshop.com/

You'll want the free version (v1)

Have fun and I hope you pick it up and create some hdr images that we can all use

Si

Edit: gazing spheres seem to be one name for them and an example link on a gardening site is here:
http://www.primrose-london.co.uk/sta...FQQdEgodqHQm2Q
__________________
Examples of bTraffic - a traffic animation tool for Maya
bFlocking - a tool for Maya 8.5+ to generate flocking and swarming behaviours
Jan/Feb Challenge 2007 Entry and W.I.P
May/Jun Challenge 2006 Entry and W.I.P
Mar/Apr Challenge 2006 Entry and W.I.P
Jan/Feb Challenge 2006 Entry and W.I.P
Nov/Dec Challenge 2005 Entry and W.I.P
Sep/Oct Challenge 2005 Entry and W.I.P
Jul/Aug Challenge 2005 Entry
www.flash-fx.net
t1ck135 is offline   Reply With Quote
Old 04-10-2007, 07:41 PM   #6
gster123
Moderator
 
gster123's Avatar
 
Join Date: May 2005
Location: Manchester Uk
Posts: 6,300
Thanks: 1
Thanked 51 Times in 45 Posts
Default

Spot on Si!

To be honest ive never seen them in a garden, maybe its just 3d people that keep them in business!!

Or another option is wait till Christmas till all the decorations come out, you can sometimes get a christmas decoration that you can use too!
__________________
"No pressure, no diamonds" Thomas Carlyle
gster123 is offline   Reply With Quote
Old 05-10-2007, 05:10 AM   #7
t1ck135
Registered User
 
t1ck135's Avatar
 
Join Date: May 2004
Location: UK
Posts: 1,991
Thanks: 0
Thanked 0 Times in 0 Posts
Default

hehe, you're probably right Steve. The closest I saw before that was those water feature balls, pretty similar but a lot heavier with a pump etc - not easy to carry around!

Yeah, christmas baubles are another good one too, again the bigger the better.(and without glitter on )

The first thing I used was actually the back of a deep silver ladle. More or less spherical and a bit dented but it created the first 2 HDR images I did, available for download at:
http://www.flash-fx.net/3D/ (scroll down a bit till you see the hdr screengrabs and you can download them from the links)
__________________
Examples of bTraffic - a traffic animation tool for Maya
bFlocking - a tool for Maya 8.5+ to generate flocking and swarming behaviours
Jan/Feb Challenge 2007 Entry and W.I.P
May/Jun Challenge 2006 Entry and W.I.P
Mar/Apr Challenge 2006 Entry and W.I.P
Jan/Feb Challenge 2006 Entry and W.I.P
Nov/Dec Challenge 2005 Entry and W.I.P
Sep/Oct Challenge 2005 Entry and W.I.P
Jul/Aug Challenge 2005 Entry
www.flash-fx.net
t1ck135 is offline   Reply With Quote

A little bit about who we are
Links you might find useful
Catch up with SimplyMaya
SimplyMaya specialises in Maya tutorials. We offer over 1,000 individual Maya training videos, ranging from basic Maya tutorials through to intermediate Maya tutorials. Our tutorials are created by instructors with industry experience and are designed to get you up and running in Maya quickly without making it seem like hard work.

Copyright © 1999-2015 SimplyMaya - vBulletin® Copyright © 2000-2015, Jelsoft Enterprises Ltd.