Agreed. It's refreshing to see intelligent journalism of this nature where we get to see the interviewer simply facilitating the real stars of the show rather than asking vague and general questions.
This is a really interesting video, one of your best I think. Pal Debevec is great at explaining things and you can see that he is really into his work and Norm's questions are on the spot. Thank you, Tested:)
AWESOME!... Norm is the best for this job! He let the guy talk and knows about the subject enough to have a decent conversation. I had my doubts in the past but...not anymore.
These days you almost already take for granted photorealistic digital faces, cars etc. I found the simulation of real-world recorded lighting situations even more interesting than the digitizing of faces. Fascinating presentation and thank you for not making it just three or four minutes long!
What an amazing technology. Many people really don't realize the huge impact that lighting has in every aspect of our perception. Can't wait to see more.
this video kicks ass. the detail and awesomeness, and the guy you are interviewing is great. i have hypothesized about light rooms like this for many years, and it is great to see it really exists. lit by the lighting of a real location!
That is so cool! The reflections in the mirror balls actually looked like buildings and the sky! I could even visualize that cathedral, and I don't even know the one they're talking about.
it's essentially an inverted digital camera:D rather than pixels capturing light for a digital space the LEDs act as pixels that emit digital lighting on real world objects.
***** oh i was talking about the light rig not the cameras. the LEDs are the pixels in that respect. also didnt intersteller or soem other modern space movie do something similar to get simulated lighting on live actors? only they used giant powerful flatscreens rather than specially rigged LED arrays.
Paul Debevec, since I have seen your conferences on all RTC, I take such pleasure to have gathered a lot of your notes during the talk. Very interesting your path with various roles but constant determination over the two decades you have been in the business. You are a great inspiration !
Paul Debevec legend! great video, felt nostalgic seeing pauls first shot hdri's (we all 3d guys used to use them back in the day), actually illuminating in real life amazing!
I had to work with lighting myself, for a short animated video, and I was in the process of designing a rig for 3DStudio that would help me manage different conditions such as bright noon sun, midnight, interior candle light, that sort of thing.... and as I added lights and controls to it, I realized I was spending more time rigging the light than actually making the video lol I concluded "yes, if it's ever completed, it'll be a very powerful rig, but I can get the same results by throughly designing the light _as_ I animate the characters" that thought process took me about a quarter of a second.... I just went "oh, gosh, you're terrible..." _delete!_ if you really want to account for the different angles, and colors and everything, it's like he said, it's a multi-dimensional array of millions of numbers that can make you go crazy if you don't _really_ need it.
Really glad to see this here. I've seen Paul's work over the years and it's always impressed me. I experimented with two light source synthetic lighting inspired by his work years ago. I took two pictures of one scene, with two white lights, then using Processing, let you adjust the R,G,B intensities of the two images overlayed on top of eachother, and you can see the shadows interacting and color mixing live. Really fascinating stuff! :D
This was my favorite video by far. Awesome job, Norm asking relevant questions to get good info to us, and I really appreciated your tour guide's ability to use lay men's terms so we can all understand. That was so cool.
This takes me back to when I started doing 3D graphics and rendering. Pauls HDR light probe gallery was one of the most important resources for me back then.
As much as the build videos are super enjoyable, this was one of the most fascinating episodes you've done. And Norm is asking all the right questions. Good job!
I'm very impressed, this is awsome! But what about metameric colors? He said, that they can simulate almost every light color due to the additional amber and cyan. But using LEDs the spectrum still will be consisting of very sharp peaks. Maybe your eye will see the "same" color, but what about the reflection of colored fabric that acts as a filter for a now different spectral source? I reckon, there still are differences in comparison to the original light.
great video, i love the narration! Well prepared questions. As a followup video, i would love to see more information about what happens after the capturing and what the steps to the perfect lit and working 3d model looks like.
Thank you for this video. This is exactly what I have been trying to reproduce for years. It is great to see something like this that is up and running and working.
Id love to see a followup video showing the processing after taking the images. This was the most interesting video you've mad in a good while, well done!
7 Dimensions. I guess that would be 2 dimensions for the resolution of the surface of the spherical light-field, 2 dimensions for directionality of the light passing through each of those points, 2 more for directionality of the lighting and the last one is time for the animation? That's A LOT of data. I'd like to know the resolution of each of those dimensions. Even with fairly low resolutions of each dimension it gets staggeringly huge FAST.
6:30 I wonder if they managed to synchronise the change of the lighting with the framerate of the camera somehow or if they are not changing the ligthing for at least the duration of few frames .
what do you mean lit the right way as if he's really there? how do you make the brain think through lightings that the image is the human there? how do you get such a clear image? is the design of an eye ball including retina or something for the lighting? looks kinda like it, so why the 6 lights per thing?
I think a rotating ring would give better dynamics if you forget about what it looks like in the human eye and sync light source controllers and cameras together in the computer.
Does anyone know what type of polarizer they are using? I see some hints for either linear or circular polarization but at the same time I see hints that would rule out both options.
i could see this lightstage technology be used in forensics. like i dunno some ransomer has a photo of their kidnapped victim and so they recreate the lighting in the photo to determine where it could have been shot. like if the top of the victim is more lit they are in a basement or a rverbed like the terminator.
if there are any shiny surfaces in a photo, then sure, you could get some information, but purely from a face, you wouldn't be able to do that. It's like a picture with a strong blur filter, you can't easily recreate the original. Just look at Paul's and Norm's faces and compare them to the shiny spheres. You can tell "more or less" that there's a strong light above them, but you can see the details only in the sphere's reflection. Not to mention that kidnappers rarely us 1Dxs and send full res pictures along with the ransom note. ;)
Mopic3d oh was talking in general not just faces.the light rig is basically a meat space panorama dome able to simulate lighting conditions. Like if the ransom photo is in a riverbed the only light will come in the form of a strip so if the the body in the photo has a strip the stand in will have a similar in the light rig.if I male sense.
You can theoretically simulate whole scenes if you have a light rig the size of a soundstage. They just have a tiny one for faces because it is cheaper I assume.
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