@demofox@mastodon.gamedev.place
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demofox

@demofox@mastodon.gamedev.place

Graphics and game dev research. previously nvidia, blizzard, monolith, others. graphics, audio synth, exotic computation. No gods, no masters. http://blog.demofox.org.

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demofox, to random
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For some reason people are talking about homomorphic encryption.
In game dev, for deterministic simulations like you see in RTSs, you can prevent write cheats by ensuring that the hash of the deterministic sim state matches across players.
You can't easily prevent read cheats though - being able to see the entire map when you shouldn't eyc.
Homomorphic encryption is a way to prevent read cheats.
Fyi!

demofox,
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Last I checked, fully homomorphic encryption was much too slow to use in game dev. There are partially homomorphic encryption schemes though, where you have a subset of operations you can do, vs FHE which can do any operation.

demofox,
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@dougmerritt I saw it and put it on the todo list and it scrolled away before I got to it! I just had a look, and it seems like "bootstrapping" has been replaced?! If so that's great news. But yeah there are a lot of new things since I last looked. That's pretty cool.

demofox,
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@lunarood I'm not in charge of what people are into 😀

demofox, to random
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Does anyone know of any code laying around the net that distributes points on a mesh in a blue noise distribution?
A student intern i work with is looking for this. It's tempting to write it, but im also kinda swamped :X

demofox,
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Mitchell's best candidate would work well here, and would give a sequence instead of a set (use the first N of M total points, for any N), but what makes it more than a 1 hour task is the mesh connectivity, and multiple paths through triangles to the same points that you need to calculate distance between.

demofox,
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@lritter well i can choose a triangle uniform randomly based on size, and can uniformly generate a point in a triangle.
That'd give you candidates for MBC.
But now you have to calculate distance between points :/

demofox,
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@lritter so we can keep whichever white noise candidate is farthest away from whatever blue noise point it's closest to.
Then rinse / repeat :P

demofox,
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@breakin @lritter you still need distance between points on mesh for lloyd relaxation. im more a fan of MBC, but they both have the requirement of needing to be able to calculate distance between points on a mesh, which makes it a longer task hehe

demofox,
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@breakin @lritter if dense enough, yeah, i bet you could just deal with points within a triangle and the immediate neighbors. I think this is all solvable but not ~1 hour of work haha. sigh...

demofox,
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@breakin @lritter basically like.. why didn't one of us already write this?! past selves were slacking

demofox,
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@breakin @lritter yeah that'd work, and xatlas is good at that. But, unless you deal with triangle connectivity, the seams of triangles will be fubar

demofox,
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@breakin oh yeah, that's true. not good enough for me. sorry for posing an unsolvable problem. Was just hoping some code existed somewhere hehe. TinyOBJ + mitchell's best candidate.

demofox,
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@breakin oh interesting!
https://github.com/BrunoLevy/geogram

demofox,
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@breakin it looks really promising

demofox,
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@mmby working locally on the surface is what I'd do, yeah, agreed.
Islands would work themselves out

demofox,
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@vethanis neat

demofox, to random
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Stardew valley is pretty great, I just started playing it. Last night I went and saw the moon jellies on the last day of summer and woke up to fall.

Patricia, to random
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Ok, I’m sorry, I’m going to ruffle feathers here but… I’m trying to read some newer development process books and… oh my… even super popular ones are so immensely long winded and unconvincing in their dogmatic argumentation: this is bad, this is good, because I said so that’s why.

Recent examples that I’m struggling to finish: “Team Topologies” and “Data Mesh” - I mean they might be great but I’m getting strong “this should’ve been a blogpost” feels.

demofox,
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@Patricia honestly everything you are saying is why I hate "programming culture". It's cringe, it's gross, it's naive.
For whatever reason, I don't see as much of that in (client side) game development other than the occasional "new c++ feature" fanboys/fangirls and am glad to watch it from afar :P

x00001, to random
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Pirated for Alt Text

demofox,
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@x00001 did Isaac Asimov write this? 😂

aras, to Playdate
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Because no one stopped me, I ported "Everybody Wants to Crank the World" #playdate demo to PC (Windows/Mac). https://github.com/aras-p/demo-pd-cranktheworld/pull/1 :playdate: :demoscene:

Using Sokol libraries by @floooh to do most of heavy lifting.

Fun fact: while the demo is running, it takes up as much CPU time as the windows task manager on my PC.

demofox,
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@wolfpld @aras @floooh so pretty

demofox, to random
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Hey software license knowledgeable friends. We recently put code out for a paper that is BSD licensed.
What would happen if some other company forked it and made a bunch of changes/ improvements?
Would it still be copyright EA in the license on their fork? And it'd have to stay BSD right?
Ty, random curiosity :)
https://github.com/electronicarts/fastnoise/blob/main/LICENSE.txt

demofox,
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@pkhuong can you explain that? Ty Paul :)

demofox,
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@pkhuong and btw - unlike previous noise texture sets, FAST has no associated patents ;)

demofox,
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@pkhuong patent is our choice, and it was a unanimous "no" :)

demofox,
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@pkhuong whats the "patent grant for using the licensed software"?
Like if the company patents the work, the license implies that they are free to use the patent as well?

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