Smoothing timelapses with ffmpeg
During shooting of the Rosalind videoseries we had the idea to include a timelapse of our lunch in each episode. It's fun and it provides a kind of intermission in the middle of the video so our viewers can take a breath amid all the technical information.
These get to be quite long and it's nice to speed them up with this command:
ffmpeg -i input.mkv -r 16 -filter:v "setpts=0.25*PTS" output.mkv
When you do however all motion blur goes away and the video looks kinda choppy. Increasing the framerate is one option but it doesn't work when you just want...
Happy New Year
It's 2019 but off-world colonies and nexus replicants are still ways away, but here we are planning once again for the future. This is a writeup of our tech team's general goals and plans for the year. The main theme is exploring new technologies, publishing our efforts and advancing engineering software.
Being spread too thin is always a recipe for not accomplishing anything so I've decided to consolidate things a bit, though arguably these are still (over-?)ambitious goals. Our projects for the tech team here at d-e are three-fold:
The present article aims at discussing basic operations that might be relevant
to packaging and developing python projects with nested git-submodules. The motivation stems
from an actual case that can be abstracted as follows:
We want to work with a git repository that has nested git submodules of an arbitrary
This can be further analysed in the following use-cases:
It should be easy to update the superproject after any revision in the
Packaging of the superproject should depend only in the upstream
repositories of the nested...
What's wrong with the situation as it is?
LibreOffice for mac recognizes (as it should) font weights other than bold as styles of the same font and not as separate fonts. I.e. fonts can have than the 4 standard styles. (Regular, Italic, Bold, Bold Italic).
On windows the system does not support anything other than the 4 standard styles so other weights appear as different fonts (E.g. Source Sans Pro Light).
Thus this causes incompatibility between platforms. A style set to
Source Sans Pro Light in Windows does not show up correctly on a Mac.
While GNU/Linux does support multiple...
If you'd like to present your 3D model to your clients, or even the public, the best way is to serve it through the web. The easiest way to publish a 3D model on the web is either through sketchfab or host it yourself using blend4web. Each has its own set of advantages/disadvantages.
Built in blender
One click publish
Tweak lighting and materials after publication
Embed in social networks
Does not require hosting
Quicker to iterate (you don't have to wait for upload/preprocess)
Works offline (if you are going to a meeting, that's important)
Exporting your model
First off, you have to export the mesh of your model in 3D from the structural software of your choice. We use SCIA engineer here at the office, so these are the instructions for that.
Open your model
Choose Structural Model from View Set view parameters. This is required in order for SCIA to export solids and not linear elements.
Choose Export Graphic Format
In the window that appears choose wrl as file type.
Converting the model in a format that Blender understands.
While Blender does have a
*.wrl importer, it unfortunately hangs when presented with a...
We have all kinds of computers in the office. Some of them support airplay, some Miracast and some none of the above. I wanted a universal solution that works for all these computers, wired or wireless regardless of OS or hardware. Long-standing protocols in the rescue, once again:
A raspberry pi connected to the office tv along with vncviewer and any vnc server on the client will do.
Here are some scripts that make this whole thing a one-click process. Remember there's no sanitization or encryption going on. It's for use behind the company firewall.
Sorry, your browser doesn't support...
We have been having issues with exporting things from drawings to reports. Either the quality is not good enough, or it involves too many steps.
One solution that works well and that doesn't involve too much effort is to go through pdf. Pdf export is usually very good in most CAD programs and from there, you can easily convert to image in any resolution you might want.
Why not export directly to png, you ask. Because usually resolution/crop is dependent on the monitor resolution and window size, which produces awful results except if you have a super high resolution display.
Unfortunately there is no simple app that just slideshows nice images from 500px.
Drag this bookmarklet 500px slideshow
to your bookmarks toolbar to start one.
You'll have to be in a page that looks like this,
for it to work, so go to your favorite gallery (e.g. popular) click on the first image,
then again on it's center (where the cursor becomes a magnifying glass)
and then click the bookmarklet. If you'd like to change the duration of each slide, just edit the
bookmarklet and change
minutes=5 to your desired value
Finally press F11 to view the slideshow in fullscreen.
I hate word processors. I hate them because if I didn't know better I would bet
that they are non-deterministic. And after seeing how people use them, I hate
them even more.
I wish I could persuade everyone to use plain text but as that is impossible,
I just try to use plain text myself where possible. However being involved with
design stuff, I also love my styling.
Markdown with css is the way to go, but what if you need to adhere to the
company report template, or you need to share as "document" with some others
before finally outputting to pdf?
Pandoc to the rescue. I just...
python-qrcode, go to your DE's shortcuts applet and add this to any hotkey you fancy
xclip -o | qr | display
I chose Super + C and when I hit it, any text I have selected pops up like this: