HDRI map

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Old 07 July 2006   #1
HDRI map

so how does making a hdr map work?
is it something difficult to accomplish?
 
Old 07 July 2006   #2
AFAIK what you need is a digital SLR on a good tripod to take lots of shots at different exposures, a chrome/mirrored ball to point the camera at and the software to glom the pictures together into an HDRI. HDRshop or maybe Photoshop CS2 now that it supports the HDR format.
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Old 07 July 2006   #3
are there any specific tutorials on this topic? I couldnt really understand you've said
 
Old 07 July 2006   #4
Do you want to make your own HDRI or just use one in cinema 4D?
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Old 07 July 2006   #5
i want to make one that i can use for all or most softwares.
 
Old 07 July 2006   #6
They are easy to create if you have PhotoshopCS, I make my own. There are many tutorials online about creating HDRI's, you just need the proper tools like Bunter says. I picked up a 10" chrome ball at an outlet store for $8.
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Old 07 July 2006   #7
oh you actually need to buy a chromeball? lol. Not saying it would be hard.
So what exactly are the softwares i need?
I've looked at the one you've posted. I could see you or the photographer. How do you get rid of that?
 
Old 07 July 2006   #8
I use use Photoshop just because I've been using it for so long, and CS2 has great HDRI tools. For final hdri maps, I use a remote or timer on camera and take the shots, then you dont see me. Maybe some post editing in photoshop. I don't worry about seeing the camera to much. I use these mainly for ambient lighting of my scenes with a sky object. It does not make much difference on what you see, just using the illumunation information.
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Old 07 July 2006   #9
so really all you need is photshop, camera and a chrome ball. Is there a specific type of chrome ball or just any kind?

After transfering the image to photoshop, you edited and then how do you save it?

edit:wheres the hdri tool located in ps?

Last edited by WKang : 07 July 2006 at 03:08 PM.
 
Old 07 July 2006   #10
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Old 07 July 2006   #11
no, you don't need a globe.
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Old 07 July 2006   #12
no, you don't need a globe, that's to get an environment close to 360 it has nothing to do with HDRI.
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Old 07 July 2006   #13
Quote:
Originally Posted by laurent
no, you don't need a globe, that's to get an environment close to 360 it has nothing to do with HDRI.


The main use of making a hdri is as an environment to wrap around your scene. This does need a globe. As the original poster is asking how to do this then he will indeed need a globe to make one.
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Old 07 July 2006   #14
10''? thts kinda big?
Which store sells this balls?
 
Old 07 July 2006   #15
Smile

You can usually get large spheres from garden stores and the like. Also it is better to change th f stops on your camera rather than shutter spead as this effects focal length. The trick to getting you out of the shot is use a good distance between the camera and sphere and a descent lens. I use a 100-400mm zoom. I use Adobe bridge to batch make HDRI it speeds the process up a little.
I have small tutorial of what to with the HDR once made. http://www.uk3d.com/other/hdri_in_c4d.htm Hope it helps.
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