Different person, but thank you for the writeup! Very interesting.
For anyone else reading: Please write more comments like this, they're one of the best parts of HN.
To elaborate a little bit on the supervision tree thing then: there's a bunch of different behaviours you can associate with process failure depending on your needs. Let's say you have a Postgres connection pool and for some reason the pool manager process dies. You can set it up so that the death of the manager will:
- kill all of the child processes that the pool was managing
- return an error to all of the request handlers who had active queries going while not touching the request handlers who didn't
- restart the pool manager
- once it's running, respawn the managed pool processes
This is all machinery that's pre-built into the OTP runtime. While that's all happening your app as a whole can keep trucking along and everything that doesn't need to make a database query carries on without even noticing that something was amiss.
The slogan "let it die" gets tossed around the Elixir/Erlang community quite a bit. This is referring to Erlang Processes (the internal lightweight processes, not the host process with a formal OS PID associated with it). Your whole app doesn't die, just the broken parts, and the OTP supervisor subsystem brings them back to life quickly.
If anyone wants to make their own: The free e-book Ray Tracing Gems II [1] covers realtime GPU ray tracing with modern APIs and hardware acceleration, and has a chapter about spectral rendering (Chapter 42: Efficient spectral rendering on the GPU for predictive rendering).
I would also recommend Ray Tracing in One Weekend [1] if you want a very quick introduction, and Physically Based Rendering [2] if you want to then go really in depth.
Highly recommend Physically Based Rendering. As a book, Pbrt is to the study of path tracers, as Gravity is to the field of general relativity. Wholly encompassing and rigorous.
I can't take time to fiddle with raytracing (however much I'd want to!) but I skimmed the first half of that book and alias sampling is a very elegant and nice technique. Wish I had known about it earlier! It is useful in a far broader context than graphics.
This is just complaining about "the youth these days", with some snark about how they consume media "wrong". It even calls them entitled, just like those articles about millennials!
In an economy in recession with awful wages and banks falling over, only just recovering from a pandemic, is it surprising that people want to spend less money?
On another note: content creators aren't individuals, they're small businesses with employees and contractors like any other and if that business is unsustainable, no matter the reason, then that business failing is the free market working as intended. Every business needs to adapt to the realities they face.
MoonRay is a renderer that creates photorealistic images of computer-generated 3D scenes, using a technique called Monte Carlo ray tracing. MoonRay can be used as part of an animation project, but it is not an animation tool itself. Instead, it is a rendering engine that produces the final images that make up the animation.
To create an animated movie using MoonRay, you would need to use other tools to create the 3D models, textures, and animations that make up the scenes in your movie. Some examples of these tools include Autodesk Maya, Blender, and Cinema 4D. These tools allow you to create and manipulate 3D models, animate them, and add textures and lighting to create the final look of your scenes.
In addition to these 3D modeling and animation tools, you would also need to have a basic understanding of computer graphics and animation principles. This includes concepts such as keyframe animation, camera movement, lighting, and composition.
Once you have created your 3D scenes, you can use MoonRay to render them into high-quality images that can be used in your final animated movie. MoonRay can render images on a single computer, or it can be used with cloud rendering services to speed up the rendering process.
In summary, MoonRay is a rendering engine that produces photorealistic images of 3D scenes created using other 3D modeling and animation tools. To create an animated movie using MoonRay, you would need to use additional tools to create the scenes and have a basic understanding of computer graphics and animation principles.
If regular users can't log in, that would decrease the load, and that could be presented in those metrics i suppose.
"Look! there was an artificial traffic spike here... but then our systems kicked in and saved the day!"
(By locking out paying users and letting in bots, because that's easier for the 'protection' company and gives the same stats for 'back to normal' in the reports)
