IBL/HDR images

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dbalex
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minus 29° C? must be fun shooting at that temperature :D

I just saw now that your hdr was at 12000x6000 pixels wide. So no need to process it for me I can do it myself. I thought you had a smaller resolution for the hdr that's why I asked.

Also one thing that you have to keep in mind is never use compression of any kind when creating a HDRi. The files should be uncompressed and linear otherwise you will get some strange stuff/bad lightning happening.

and what are your thoughts on your new panoramarobot now that you had time to play with it?
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notareal
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Stian Ervik Wahlvåg has some nice HDRI with backplates
http://www.nordicfx.net/?works=hdri

Some freebies from hdrmaps by Greg
http://hdrmaps.com/freebies
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notareal
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Free "Over the Clouds" HDRI Map. It's medium resolution, but maybe nice for some aviation renderings.
http://macmave.blogspot.de/2012/09/free ... i-map.html
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rogerpenna
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Bob James wrote:
Pixero wrote:http://3docean.net/user/paguthrie/portf ... =paguthrie

Very good HDRI skies. Bought one of the packs.
They are very high intensity so use low intensity in Thea.
I bought the hdri-pack-003 skies ($150) and they have buildings on the horizon which make them totally useless to me. How/where can I find high quality hdri skies?.

Is there a way to relocate the sphere with relation to the model so I don't get the buildings on the horizon?
maybe you can add some treeline-horizons around your scene, thus covering the buildings from the HDRI panorama?

like these ones: http://twilightrender.com/phpBB3/viewto ... =13&t=1518
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rogerpenna
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anyway, I have some good commercial sky HDR panoramas (in HDR and some in EXR format) I bought from different sources. And also some free ones. With NONE of them I was able to cast shadowsm unless I turn on the sun.

However I guess turning the sun on defeats the purpose of HDRs? I mean... you have this bluish tone HDR light, you turn on the sun, it casts yellowish light...

I am using Thea Sketchup Demo. Tried different Render Engines. None cast light. What am I doing wrong? Does the problem lies in the fact it´s the demo version? Or Thea Sketchup?
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Frederik
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Hi all,

I've been searching for a good high res hdri night sky, preferably taken on a field, so you don't have anything but trees in the distance...

Can't seem to find good ones, unless it's from a city or where you have very evident buildings etc...
I have one hdri with a full moon, but it's very low res... :(
Hopefully some of you wise guys can help me here...?! :)
Cheers
Kim Frederik

"If you have no critics you'll likely have no success..."
-Malcolm X
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massimo
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I assume you're searching for free samples.
Well not exactly what you're looking for, but maybe these will come in handy.
http://www.hdri-hub.com/hdrishop/freesa ... -hdr-night
http://www.openfootage.net/?cat=15&paged=6
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Frederik
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massimo wrote:I assume you're searching for free samples.
You're spot on, Massimo...

Thanks for the links... You're right... Not exactly what I'm looking for - unfortunately...
Cheers
Kim Frederik

"If you have no critics you'll likely have no success..."
-Malcolm X
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Frederik
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OK...
I ended up purchasing one from 3dOcean, which looks quite good and didn't cost a fortune... :)
Actually they have some really great HDRI's... :)

Now comes my really noob question... :oops:
The package comes with a EXR, HDRI and JPEG file (plus 18 backplates in JPEG format)...
Can someone shed some light regarding which file-format I should put in the various environment channels...?
(i.e. the hdri in the illumination channel, the jpg in the background and reflection channel...)
I believe I've read somewhere, that it's good practise to use the same file-format for all channels, but I'm not 100% sure about this... :|
Cheers
Kim Frederik

"If you have no critics you'll likely have no success..."
-Malcolm X
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notareal
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EXR should work as fine as HDRI, dont recall if there related issues. But basically use HDR/EXR in "light" and reflection/refraction channels and high resolution jpg on backround.
http://www.thearender.com/forum/viewtop ... =54&t=2110
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