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  • 6 Posts
  • 282 Comments
Joined 3 years ago
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Cake day: June 15th, 2023

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  • Conflicted on filename extensions. For the average person it works just fine, and I suppose that’s what probably matters. It’s not very common for not knowing the details of how they work to matter. It’s just silly that the same information is also in the start of the file 99% of the time. It is nice though to have a readable, usually reliable label, and then have a signature anyways for when different names overlap. Wikipeda lists 4 completely unrelated types with a .mod extension, for example.

    Pretty much any application will correctly open any file type it supports, regardless of the extension. So it is quite unintuitive that you could have a file named “.png” that seems to work completely fine yet is actually a jpeg or something. But that hopefully isn’t a case that people run into very often, so it probably doesn’t matter.







  • With a super lightweight laptop, 5w is achievable during light usage. I have one that draws that. It’s usable for Google Docs sort of stuff indefinitely on a 5w charger. It can also go down to ~2.2w with low screen brightness and very low load. It is absolutely terrible though, celeron 3855u. I got Minecraft Java to run at 60 fps though… But it was probably using 7-12w then.

    With a modern arm chip, you could get pretty great performance at that power draw. My phone (snapdragon 8 gen 3) in power saving mode can be like 5-10x faster at about 6 watts it seems like.




  • Makes sense, for naive, completely diffuse lighting (not reflective) the result is just the sum of base color * light visiblity * cos(angle between surface and light) for every light

    And then for light bounces just repeat that many times, but considering every surface as a light

    In the general case, for a more complicated material, the resulting brightness on a surface can be pretty much any arbitrary function of wavelength, the angle the light comes in, and the angle of the observer (called a BRDF). As long as it’s not putting out more light than it’s getting in, it’s probably possible. These functions can get especially complicated when there’s multiple thin layers, imagine a brushed metal surface with a layer of oxidization, a clear coating, some dirt, and some dust. Even for a single position on the surface, each of those reacts so differently to different input and output angles that no simple functions will represent the surface well. For CGI in films, they usually will layer many simpler BRDFs together, but that’s slow for games, which usually try to approximate surfaces in a single one.


  • Yes, it’s a common brand.

    In the United States, pudding means a sweet, milk-based dessert similar in consistency to egg-based custards, instant custards or a mousse, often commercially set using cornstarch, gelatin or similar coagulating agent. These puddings are known in some Commonwealth countries as custards (or curds) if they are egg-thickened, as blancmange if starch-thickened, and as jelly if gelatin-based. Pudding in America may also refer to other dishes such as bread pudding and rice pudding, although typically these names derive from their origin as British dishes.

    https://en.wikipedia.org/wiki/Pudding