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...but as yet, nobody has been able to procedurally generate one convincing block of a city street seen at ground level... I'm wondering if technology might al
by curtis 10y ago
...but as yet, nobody has been able to procedurally generate one convincing block of a city street seen at ground level...
I'm wondering if technology might also make it much easier to shoot on location. For example, given modern digital camera systems it might be possible to shoot in low-light conditions (late in the day, overcast, etc.) and correct the lighting in post to appear like broad daylight. I've also wondered if it would be possible to shoot in 3d (i.e. using 2 cameras in a parallax setup) then use the 3d data to selectively remove foreground or background parts of the image which can then be replaced with CGI. So we can continue to use the real world to provide detail, while using CGI just for the parts that give us the most bang for the buck.
- Animats 10y agoThe reverse has been done. In "The League of Extraordinary Gentlemen", the dark, rainy look of London was added in post. Removing backgrounds is more manual than you may expect. There are commercial "clipping path services" in low-wage countries. Even when green screens are used, the boundaries may need a bit of touch-up. It's a possible application for deep learning.
- dijit 10y agoRE: Shooting on location in low light; Yes, it was done in 28 Days later on the Westminister bridge over which Big Ben looms. Shot at night, with a camera which had a large aperture.
- vilya 10y agoThe term you're looking for here is a depth matte. It's a technique that's been in use for many years now, but of course it's only as reliable as your depth data so it's just one of the many tools in a compositor's tool belt.
- pixel_fcker 10y agoYou can't make overcast look like broad daylight or vice versa because the nature of the shadows change dramatically. That doesn't mean people don't do it all the time, it just looks like garbage.