Mendel
Senior Member.
Re: the thermographic video:
Why do you think the zoom is part of the original footage?
I agree the camera wasn't handheld because there's a lot of magnification and that's not possible to do well handheld.
This source was 30 fps.
You think the poor stabilisation in this step caused the contrail jitter?
Could they have added the zoom at this stage?
Why do you think it was a close distance? the pass at the start?1. The creator found or recorded of a video of a passing plane, with contrails. Assuming this was a real video, it was recorded by one plane passing another at an exceptionally unsafe distance out over a large body of water. (It probably wasn't made in a video game or some other simulation, because it would have been easy to just swap out the plane at the point of simulation, and because a game or simulation wouldn't have had a pre-existing camera shake that requires careful stabilization). This video was not recorded by someone with a handheld camera, but by someone with access to a PTZ camera mounted on a plane. They would have had to use the zoom already when the footage was first recorded.
Why do you think the zoom is part of the original footage?
I agree the camera wasn't handheld because there's a lot of magnification and that's not possible to do well handheld.
This source was 30 fps.
How do you know this was done?2. In 2D, the creator stabilized the original footage, but poorly. And yet, they stabilized it well enough to doctor the footage to remove the original plane.
You think the poor stabilisation in this step caused the contrail jitter?
The render was at 24 fps.3. Then in 3D they rendered the Boeing 777, the refractive/spinning orbs, orbs changing from hot to cold after the third one joins, orb helical trails, orb thrust/forward vectors, and engine exhaust. They used matchmoving to track the position and zoom of the original camera, then they render with motion blur and exported this 3D render as a 2D sequence with alpha for compositing in the next step. (Note the original plane would have been much smaller than the 777, or we would see it peeking out, or other artifacts from the swap.)
If they never did step 2, they wouldn't have to add shake here.4. In 2D, the creator added a 2D overlay of a drone cowl and MQ-1C nose with the air intake hotspot detail, rather than using the more common forward-mounted FLIR position. Then they added the previously rendered 3D sequence in 2D, and camera shake with additional motion blur (this is separate from the previous motion blur that blurred high-speed objects) in a way that scales proportionally to the zoom. This is also where they would add defocus.
Could they have added the zoom at this stage?
Why was the sensor noise added? Was it not present in the source footage?5. Finally, in 2D they added the45 frames of hand-drawn portal animation, added sensor noise, and converted the grayscale working space to rainbow mapping, and lastly added the HUD cursor overlay. Then they compressed it once, before it was uploaded by others to YouTube where it got recompressed.
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