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when starting a new polyphase portal course we want to create a chatroom where all members of the course can communicate. this guide will walk through the steps to set this up. 1. collecting information from students first step is to collect the information fr...

Polyphase Portal runs on self-hosted open-source infrastructure. this is to ensure we hold the power to meet our specific software needs, to protect the data and privacy of our users and to allign with our collective ethics. our chatroom is using the open-sour...

cathode ray tubes Cathode Ray: a stream of electrons in a vacuum tube neon tubes work along a similar basis, but with different gases inside the tube in order to display dynamic images on a cathode ray tube, some kind of phosphoresent substance must be applie...

signals CVBS (Composite Video Broadcast Signal) including NTSC, PAL, SECAM) - when you see CVBS on a device, most likely it will automatically detect and switch between NTSC and PAL signals different ways of transmitting & terminators used broadcast at rad...

Knowing how to find the info you need The main skill of creating websites with HTML & CSS isn't memorizing all of the names of every tag and property. It's knowing how to search for and find the info you need to do what you want to do in a given moment. Searc...

Artist Portfolios & Digital Gardens hnr.fyi - simple image-focused html/css site with great alt text chelsea.technology - nice simple portfolio with looping video on homepage aloeloopy.neocities.org - personal website styled after a text adventure game p...

Favicon generator Favicon.io - can generate from text, images, or emoji HTML Color Picker Hue/Saturation/Lightness color picker on W3Schools - easily find the color you want in the html hex format W3C Validator validator.w3.org - make sure your ...

Links Class website: polyphaseportal.neocities.org Registration page: polyphaseportal.xyz/making-websites About the course: Making Fun, Simple Websites with Handwritten HTML/CSS In an age where most websites are both boring to look at, and unnecessar...

Web Hosting A web host is a server that hosts the files of your website, and serves them when someone visits your site. Because we are creating sites that are just simple HTML & CSS files, and maybe some images or other assets, our websites are static, so the...

Potential Growing Pains While creating websites by creating HTML and CSS files by hand can be fun, educational, and sufficient for many use cases, there are certain situations where using this method can result in an excessive amount of tedious copy-pasting. ...

About Custom Domains Let's say you want your website URL to be something that doesn't end in '.neocities.com'. This is called a custom domain. Generally, to get a custom domain, you need to buy one from a registrar, and keep paying for it annually in order to...

Analog Video Basics The minimum equipment needed to get started with camera feedback is: At least 1 video camera with composite output At least 1 television/screen with composite input (this can be a CRT or LCD monitor) Cables (and converters if needed) ...

Links Course registration page: polyphaseportal.xyz/video-feedback-with-cameras About the course In this course, students will learn to create real-time visuals using camera feedback, and create recordings of the patterns they generate. We will each devel...

Now that you have a beautiful video in the analog realm, how do you get it into a digital file? Since this topic is relevant to anyone working with analog video signals, it has been made into its own wiki. →Capturing & Rescanning Analog Video

Once you have your equipment, you are ready to get started creating some video feedback! Connect your camera and screen together so that the screen is showing what the camera sees, then point the camera at the screen. Try to align the edges of the camera's...

Videos ^an article about this piece Readings Space-Time Dynamics of Video Feedback - James P. Crutchfield (1984) - PDF & Accompanying Video A paper addressing Video Feedback and the phenomena from the perspective of physics P...

What is optical manipulation? Transformations & Geometry rotation tripods magic arms gimball heads Physical materials putting the tv flat on the table Prisms and lenses dichroic random glass Mirrors and reflective materials Filter...

what is signal manipulation?   [note: add diagrams] Video Processors x enhancers Video Mixers x luma key Advanced signal chains figure 8 feedback

Rescanning is a capture method where you simply point a digital video camera at a screen that is displaying your analog video signal. Cameras It is important to have manual control over at least the shutter speed, exposure, and focus of the camera you're usi...

The purpose of this wiki is to help you take an analog video signal and make it into a digital file. There are a few different types of analog video signals. This wiki will focus on Composite or CVBS (NTSC or PAL depending on your region), S-video (Y/C), and ...