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Bryce F.A.Q (Last Updated: 2024 Aug 28 6:28 pm)
Attached Link: http://www.renderring.com/hdri/bloblinks.html
Cool AgentS. I had inadvertently discovered the same technique about a month ago. Here is a quicktime object movie I made using a spherical panorama and three metaballs: http://www.renderring.com/hdri/bloblinks.html I also figured a way to "back light hdri" a scene and also render your own bryce scenes for use as on of the hdri "covers." Give me a day or so to compile the info on my site and I will post the url.Attached Link: http://www.silverblades-suitcase.com/
Hm, hwo do you get the picture to become properly spherical? Do you use a plugin in Photoshop to make the original square image "cartesian" for mapping to a sphere? very interesting! :)"I'd rather be a
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Attached Link: http://www.debevec.org
HDRI are images that are a combination of a handful of images of the same exact photo, each picture will be taken at different apertures, etc. This will provide much more information as far as more acuurate renders go, etc. High Definition Resolution Image. They can't be used outright in Bryce. Bryce doesn't have the capability to decipher an HDRI. But, a lot of HDRI's tend to be used for the above application (to be stuck on a big sphere), so they are 2D processed so they willl later fit onto a 3D sphere and look normal. So, yes people use Photoshop, and other programs to edit these pics to make them fit onto spheres. It's kinda like UVMapping a texture to later fit onto a sphere. There is a TON of info on all this stuff, more than I could ever type out here. If you want to learn more take that link and start reading, and keep reading...The term they use for the photo image I used above is "Light Probe", there is a gallery of them there. AgentSmith
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Dowt! Uh, sorry, mistake there, it's not high definition resolution image... It's stands for "High Dynamic Range Image". AgentSmith
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Yes. Most higher end apps such as lightwave apply this image virtually, so it does not even really exist as a visible object or picture. Instead the information the HDRI contains is used in conjunction with global illumination to produce chromatic global lighting scemes as well as accurate reflection mapping.
Attached Link: http://www.redshoesdigital.com
Funny this topic should come up. I started doing sphere within a shpere within a sphere stuff a few weeks ago. I also experiemented with reflections to get a curved horizion. Your comments as well as the URL will ad to my knowledge. Thanks!
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AgentSmith, you're right about the sphere versus boolean. I found this out by accident but never truly understood why this happened. I was modeling marbles - glass spheres with other objects inside them. Several came out very clear. Others I added later had the bubble thing going on because I had forgotten that I used a boolean sphere the first time. Amazing what experimenting will do. :-)
I guess it's good if you want to imitate a snow globe. (hey, ya never know) AS
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My pics up there are done with just one light. Just the sun absolutley directly above, slightly grey. The globe image itself ends up creating what looks like light coming in from different areas. AgentSmith
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Agent Smith, I was thinking that the refraction of the glass could bend the light rays in a non-parallel way such that rays could intersect even with only one light source, but at this point that is just a guess. The interface between the inner and outer globes could also act as a reflective surface, especially if the attributes of the two globes are not exactly the same. It's been along time since I studied optical petrography so it would be easy for me to be wrong on both counts. Either way the effect you ended up with is very neat. Thanks for sharing the trick. I'm sure I'll end up playing with it, - TJ
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