Zanzo opened this issue on Nov 12, 2012 · 11 posts
Zanzo posted Mon, 12 November 2012 at 2:03 AM
What kind of image are you supposed to load in an IBL light?
A random image off the web or some kind of specialized file? I've seen those images of a circular ball, what is that all about?
LaurieA posted Mon, 12 November 2012 at 2:16 AM
The circular ball images are normally called light probe images. The purpose being, you have a spherical environment and have one of those ball images of the same environment image plugged into the light so that you can approximate the lighting of the environment. Check out SIBL archive. They have the images that go on the sphere for the environment and the light probe image that goes with it.
Laurie
bagginsbill posted Mon, 12 November 2012 at 12:58 PM
The format is officially an angular map. Light probes can be in several formats, but Poser only supports angular map.
However, that doesn't mean it can't show arbitrary colors - any image will produce light, just not necessarily in some pattern that represents a real-world lighting situation. But the light probe isn't highly detailed - it isn't used for environmental reflections, for example - so anything at all - even random splotches of color - can be used. Can be in this case means that as an artist, you can choose to do anything you like, and if the result is unpredictable, it may still be pleasing.
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)
luckybears posted Mon, 12 November 2012 at 4:18 PM
I save an unrendered image of the scene then attach that to the IBL within the scene. Seems to work well enough.
ypvs posted Mon, 12 November 2012 at 5:04 PM
I've used a 100% reflective ball primitive (medium size) in poser, used a filling light and rendered from the front view camera. Crop it square in a graphics app and use as the IBL
EDIT -might be better light the room as you want it with props but no characters
Poser 11 , 180Gb in 8 Runtimes, PaintShop Pro 9
Windows 7 64 bit, Avast AV, Comodo Firewall
Intel Q9550 Quad Core cpu, 16Gb RAM, 250Gb + 250Gb +160Gb HD, GeForce GTX 1060
ypvs posted Mon, 12 November 2012 at 5:08 PM
Poser 11 , 180Gb in 8 Runtimes, PaintShop Pro 9
Windows 7 64 bit, Avast AV, Comodo Firewall
Intel Q9550 Quad Core cpu, 16Gb RAM, 250Gb + 250Gb +160Gb HD, GeForce GTX 1060
ypvs posted Mon, 12 November 2012 at 5:10 PM
Poser 11 , 180Gb in 8 Runtimes, PaintShop Pro 9
Windows 7 64 bit, Avast AV, Comodo Firewall
Intel Q9550 Quad Core cpu, 16Gb RAM, 250Gb + 250Gb +160Gb HD, GeForce GTX 1060
bagginsbill posted Mon, 12 November 2012 at 5:17 PM
Quote - There's a site somewhere (lost the link!) that shows someone using a mirror ball to get photograph an IBL image.
I've used a 100% reflective ball primitive (medium size) in poser, used a filling light and rendered from the front view camera. Crop it square in a graphics app and use as the IBL
That works. If you want a more accurate IBL of your scene, use this:
https://sites.google.com/site/bagginsbill/free-stuff/genibl---ibl-generator
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)
FranOnTheEdge posted Fri, 16 November 2012 at 4:53 AM
Quote - > Quote - There's a site somewhere (lost the link!) that shows someone using a mirror ball to get photograph an IBL image.
I've used a 100% reflective ball primitive (medium size) in poser, used a filling light and rendered from the front view camera. Crop it square in a graphics app and use as the IBL
That works. If you want a more accurate IBL of your scene, use this:
https://sites.google.com/site/bagginsbill/free-stuff/genibl---ibl-generator
You have talked about this a few times now and everytime I go to the site - it's not possible to download it, there is no active link anywhere.
Same thing with the Environment Sphere.
It's rather frustrating.
Measure
your mind's height
by the shade it casts.
Robert Browning (Paracelsus)
cspear posted Fri, 16 November 2012 at 6:28 AM
Quote -
You have talked about this a few times now and everytime I go to the site - it's not possible to download it, there is no active link anywhere.
Same thing with the Environment Sphere.
It's rather frustrating.
Go back and have another look. Especially towards the lower right corner of the page: there's a little arrow, which is the download link, just above the 'Comments' section.
Windows 10 x64 Pro - Intel Xeon E5450 @ 3.00GHz (x2)
PoserPro 11 - Units: Metres
Adobe CC 2017
bagginsbill posted Fri, 16 November 2012 at 8:54 AM
Sorry that Google, in their infinite wisdom, decided to remove the obvious link (the words) for attachments. Indeed, that tiny arrow is the only way. I would change it if I could.
My site costs me nothing. If it was even $1 per year I would abandon it.
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)
