Sunset #11

Cruise Ship departs San Francisco during incredible sunset

Sunset around the Farallon Islands off the coast of San Francisco. Shot at 500mm, 4k 60fps timelapse. A very bright cruise ship sneaks past near the end.

(Related: Ship Entering San Francisco Bay; San Francisco Shoreline Timelapse; Farallones)

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Change in Presidential Vote from 2000 to 2020 by US County

Change in Presidential Vote from 2000 to 2020 by US County

This animation shows how the presidential vote in each county changed from 2000 to 2020. Every step in the animation shows the lift from 2020 with counties that voted more Republican shaded red and Democrat blue.

The blue shift towards Obama and then the Red shift towards Trump make a lot of sense. I find it really interesting how little changes between Trump and Biden.

Note that the colors represent the change in share of the vote and not an absolute measure. A country that went from 70% Republican to 60% Republican would be shaded blue due to the shift towards the Democrat vote. The vote is interpolated linearly between elections and so when you're looking at 2016 to 2020 for instance the animation shifts each county towards the votes that they will cast in 2020. Like the electorate I ignore third parties.

Data is from Harvard Dataverse. The animation and any errors introduced in its fabrication are all me.

(Related: Liquid Democracy and united.vote; Republicans and Democrats: Too big to succeed; Thinking about the UK referendum on AV)

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Space Journey

Space Journey

Animation of a trip through a random collection of stars with a bit of a hyperspace effect in the middle. I didn't mean to write this code but it's what ended up happening anyway. It would make a good mid-90s screensaver. I'll post what I was actually trying to do next.

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Stable Diffusion Watches a Security Camera - a short horror movie

Updated on Friday, September 16, 2022

Stable Diffusion Watches a Security Camera - a short horror movie

A horror movie made by forcing img2img to watch a Japanese security camera over 24 hours.

The office was empty, so the main influences are sunrise and sunset and then just subtle shifts in lighting. In terms of settings, strength was 0.75 with scale of 6.6 so the animation doesn't look anything like the actual office in question. The prompt was "photo of something unspeakable lurks in the shadows of the office, high quality, cinematic lighting, subtle horror, horrifying, japanese, found footage, sharp focus, 8k, no text". I upscaled with Gigapixel AI and then added some music.

(Related: A black lab chases a Roomba and then things start to get weird...; Stable Diffusion Animation of Scale Parameter; Time Zone Time Lapse)

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A black lab chases a Roomba and then things start to get weird...

A black lab chases a Roomba and then things start to get weird...

Another experiment with Stable Diffusion (see my San Francisco skyline video from earlier today). This one uses img2img instead of txt2img. I started with a video of my dog following the Roomba around the house. I dumped all the frames out and then used Stable Diffusion with the strength parameter ramping up from 0.0 (source image preserved) to 1.0 (source image ignored) and a scale of 11.5. The prompt was "illustration of a black labrador being chased by a giant scary roomba trending on deviant art". The frame at the top maybe best captures this concept. I used Gigapixel AI to scale the output back up to 4K resolution and then added the original soundtrack.

(Related: Improving the accuracy of the new Catfood Earth clouds layer; Style Transfer for Time Lapse Photography; Stable Diffusion Animation of Scale Parameter)

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Stable Diffusion Animation of Scale Parameter

Updated on Thursday, September 22, 2022

San Francisco shrouded by fog, Stable Diffusion, scale 0

Here is a video created by animating the scale parameter in Stable Diffusion:

This uses the prompt "a photo of San Francisco shrouded by fog 8k landscape trending on artstation", seed 56345, dimensions 896x448 and frames that range from scale 0.0 to 21.9. The higher the scale the more literally your prompt should be interpreted.

Interesting at scale 0 Stable Diffusion seems to think San Francisco is a diverse crowd of people protesting something (and it's not wrong):

San Francisco shrouded by fog, Stable Diffusion, scale 21.9

From there is settles on a foreground quickly, experiments with various numbers of Transamerica Pyramids and then starts throwing in various permutations of the Golden Gate Bridge. It eventually decides that the Transamerica Pyramid belongs in Marin and that the bridge is so iconic that the city is probably filled with red aircraft warnings lights.

I think the versions a third of the way in are the best.

(Related: A black lab chases a Roomba and then things start to get weird...; San Francisco PM2.5; Improving the accuracy of the new Catfood Earth clouds layer)

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Time Lapse Settings for GVM GR-80QD and GR-120QD Motorized Sliders

Updated on Monday, August 29, 2022

Time Lapse Settings for GVM GR-80QD and GR-120QD Motorized Sliders

I've been experimenting with a four-foot Great Video Maker GR-120QD slider for timelapse photography. So far I'm impressed with the quality for a relatively cheap device but the controller is a little hard to understand. There are various YouTube videos that explain this at length but I find a quick written explanation more helpful (and as much as anything, this post is for me to refer back to quickly!). These instructions will also work for the three-foot GR-80QD.

The first thing to understand is that you need to recalibrate the device every time you power it on. It's a bit of pain but fast once you get the hang of the Konami Cheat Code style UI. Go to settings, Set Start and then hit the left button to start moving. When you get to the desired start point press the center button to stop the slider, long press the center button to save it and then long press again to up a level in the menu. Do the same for the end point at the right side of the slider. More long presses to get back up to the top menu.

Now the fun part. For timelapse you have Interval, Time-lapse, Stop Time, Photo and Auto Loop and the user guide is silent on what any of those might do.

When shooting a timelapse the slider is going to move, stop for a bit and shoot and then move again.

Stop Time is the total amount of time that the slider stops for each shot (seconds).

Time-lapse is the number of seconds to wait after stopping before the shot is taken. This allows the camera a chance to stabilize after being moved along the slider before a shot is taken. The system enforces at least 0.2 seconds but you probably want this a bit longer.

Shutter time is in the hands of the camera.

So if you have a 1 second shutter speed and want to shoot every 4 seconds you would set Stop Time to 4 and time-lapse to something like 1. The slider will then move, wait 1 second, trigger the shutter, wait 3 seconds (the remainder of the 4 second Stop Time) and will then move again.

If Auto Loop is set to No then the system will stop shooting when it reaches the end of the slider, so you can set Photo to a large number and not worry about it. If Yes the camera will go back and forth until it hits the count of photos in the Photo setting.

The last thing to worry about is how far the slider moves between shots. This is a combination of Interval and the slider speed, which you set when you start the time lapse. The minimum interval is 0.1 - I haven't tried anything else. At 70% speed this takes about 45 mins (based on the 4 second stop time) and shoots almost 700 photos which for me is a pretty decent sequence. This part is not a science so you'll need to experiment to get the result you're looking for.

When the settings all look good, hit the center button and you will go to the time lapse screen. Adjust the speed with the up and down arrows and then hit the right or left button to start shooting in that direction.

Updated 2022-08-29 17:43:

Here is some test footage at 60% speed and 0.1 interval. The video starts siding to the left (camera pans to right) at 1/1000s shutter. The last section reverses direction and has a 1s shutter with an ND3 filter to check for any shake. Both sections are shooting every 4 seconds with a 1 second 'Time-lapse' (or stabilization time) setting.

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(More Timelapses)

One O'clock Gun

One O'clock Gun

Super slow motion video of the One O'clock Gun firing at Edinburgh Castle. This is a 105mm field gun fired startlingly over Edinburgh every day except Sundays, Good Friday and Christmas Day.

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Sunset #10

Snowdonia Milky Way Time Lapse

Snowdonia Milky Way Time Lapse

Completing a Llanbedr trilogy, a 4k timelapse of the Milky Way near Snowdonia National Park in Wales.

Snowdonia has a great reputation for dark skies. Unfortunately I'm only here around a full (super!) moon and in July when it's only dark for about 2 minutes. Given all that, some pretty impressive views after the moon sets. Shot over three nights on an A7C with the 20mm 1.8 G. Post processed in LRTimelapse and Lightroom.

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(More Timelapses)