Hello all, thanks for the rapid other answers.
I have a question, why my background look so blur and not brigth?, the image background (a jpg converted in EXR) looks good. I resized from 800 x 400 to 3200 x 1600, I create two exr, one with the 800 image and the other with the 3200 image and see no difference
thanks in advance.
{Ask} Background Isue
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- Posts: 19
- Joined: Wed May 21, 2008 7:24 am
{Ask} Background Isue
- Attachments
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- render image with 800 x 400 exr background
11 min - im1180914792.png (312.07 KiB) Viewed 2531 times
- render image with 800 x 400 exr background
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- render image whit exr 3200 x 1600 background
7 min - im1180913846.png (348.69 KiB) Viewed 2531 times
- render image whit exr 3200 x 1600 background
i dont think its very practical to use JPG -> EXR as it is supposed to be an HD source. also, just resizing the image wont improve quality as it gets wrapped around the scene the same way either way you do it (as you can see from your test images.) i'd suggest getting a real HDR image and using that instead -- something with a high initial resolution is preferable.
can anyone else correct/add to this?
gl!
can anyone else correct/add to this?
gl!
- kwistenbiebel
- Posts: 496
- Joined: Sat Jan 27, 2007 12:31 am
Either the resolution of the .exr is no good.....or set a smaller f-stop (=higher value): for instance f22 which makes background items sharp again. (use Reinhard mapping in that case)
Last edited by kwistenbiebel on Thu Jun 05, 2008 7:54 am, edited 1 time in total.
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- Posts: 19
- Joined: Wed May 21, 2008 7:24 am
produce yourself works like this:
Get a camera. The higher quality and resolution, the better (D'uh)
Get a blank sphere - the more polished and reflective and the more perfect, the better (D'uh²)
Get a stative
Take at least 6 shots (you can use less but the quality might suffer) of the ball with different stops to get the whole Dynamic Range.
Do 6 more from the other side.
Combine them in a proper Images -> HDR program. Eventually, convert from spherical to latlong.
A different way without the metal sphere would be to use a fisheye lens.
And now, THE Way, if you want to give this forum an amazing present and you think, you've got too much money:
http://www.spheron.com/en/VI_spherocamh ... camhdr.php
Get a camera. The higher quality and resolution, the better (D'uh)
Get a blank sphere - the more polished and reflective and the more perfect, the better (D'uh²)
Get a stative
Take at least 6 shots (you can use less but the quality might suffer) of the ball with different stops to get the whole Dynamic Range.
Do 6 more from the other side.
Combine them in a proper Images -> HDR program. Eventually, convert from spherical to latlong.
A different way without the metal sphere would be to use a fisheye lens.
And now, THE Way, if you want to give this forum an amazing present and you think, you've got too much money:
http://www.spheron.com/en/VI_spherocamh ... camhdr.php
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- Posts: 19
- Joined: Wed May 21, 2008 7:24 am
I starting to understand the hdr thing. I only have work with panoramic background, hrd is spherical background. duh
Any free hdr software?
Give me three of that
I can´t imagine the cost of this camera
Any free hdr software?
And now, THE Way, if you want to give this forum an amazing present and you think, you've got too much money:
http://www.spheron.com/en/VI_spherocamh ... camhdr.php
Give me three of that
I can´t imagine the cost of this camera
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- Posts: 19
- Joined: Wed May 21, 2008 7:24 am
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