dr_analog
razorboy
No bio...
User ID: 583
dr_analog
razorboy
11hr ago
It is, yeah. I downloaded a free Dodge Charger Daytona Hellcat SRT model from sketchfab.com.
Not Dom Toretto's signature black Charger but it'll do for now.
dr_analog
razorboy
12hr ago
I am getting some banding in texture maps but I'm sure I'll figure that out eventually.
This ended up being caused by only some of the faces in the 3d model having textures, with the rest relying on material color and phong shading, but my fragment shader didn't know that so it was trying to use a junk texture for those which just led to this banding effect.
Creating another vec4 and treating the x component as a boolean to signal to the fragment shader whether it should sample from the texture is the best I could figure out how to solve this.
Anyway, looks much better now. Ride or die time with the homies is one step closer.
Still having trouble finding a 360 degree panorama I could use. I might just go to a parking lot in a scenic skyline park of town and take a photo sphere with my phone.
dr_analog
razorboy
1d ago
I have a 7 year old. He's never played a video game outside of a DIY version of online chess against me.
I notice a lot of kids play Minecraft. I've never played it. This is a little odd since the entire reason I have a career is because I wanted to get into game development and learned to program C.
I would like to expose him to video games since I believe they have upside, but I'm pretty worried modern games are crack and educational benefits or whatever are oversold and not real.
He has an excellent attention span right now and we play a lot of card (MTG) and board games (Catan Jr) and I don't want to ruin that. Other families say once their kids play video games they stop caring about all of that other stuff and see their attention spans go to shit.
We homeschool him so he's not exactly surrounded by other kids trying to relate to him re: games but it's only a matter of time.
dr_analog
razorboy
1d ago
The trick is figuring out what 'properly prepared' means -- 90% of the time just dunking in simple green and rinsing with water works, but heavily polished or painted and almost all rubberized materials can benefit a lot from primer, and I'd expect helmets will fall into this domain.
What about rubbing alcohol on the shiny (not foamy) parts of a bike helmet?
OK my stuff from mouser.com arrived w.r.t. my LED project.
I got charged a tariff!
I ordered $5.00 worth of MOSFETs. I saw a line item that said $1.50 in tariffs. If they came from China, and they were anticipating a 145%ish tariff on these items, aren't they telegraphing that their wholesale price for the MOSFETs was $1.00? Seems kind of not that big a deal. If I were a retailer I might simply hide this cost rather than give away proprietary business info like my wholesale costs this way.
Anyway!
My next biggest stumbling block with my LED lighting project for my bikes and bike accessories is coming up with adhesion. For the helmets I think I want to use double-sided tape but I'm concerned it won't hold. My experience with gluing/sticking things has historically been lousy, although I do note that Tesla Model 3 and Model Y license plate holders are stuck to the front with sticky tape so I assume it's possible. I'm eyeing 3M double-sided "very high bond" tape though not holding out a lot of hope.
If that doesn't work, or if I'm dealing with surfaces that are more porous, the next best thing might be to get LED sleeves that are more like tracks with a cover and try to rivet or staple them into the surfaces instead? Thinking of my cargo bike box here.
Thoughts?
While I wait for mouser.com to finish delivering some stuff for my LED project I dusted off a 3D racing game I had been working on.
I originally started it after catching up on the Fast and the Furious series and Dom Toretto's Charger was top of mind. I wrote an all software rendeter in Rust but every nicely detailed free charger model I could find was way too slow without GPU acceleration. So I began rewriting it to use wgpu but it was pretty frustrating due to annoyances around Rust ownership junk but also everything in Rust that's new and exciting is unusable with LLMs because they mix old and new incompatible APIs in their answers. So I stalled out.
The last few days I decided to start over in C++ with SDL2 and bgfx and it has gone significantly better. I can get the car models fully loaded and it's pretty fast, even on crappy ancient laptop GPUs. I am getting some banding in texture maps but I'm sure I'll figure that out eventually.
Currently working on adding controls to the car and having the camera chase it as it moves around an infinite plane, and also looking into making an animated sky sphere from 360 degree YouTube videos. I suspect it'll involve Blender, at some point, which I don't know at all. Probably not too far behind you, @FCfromSSC
dr_analog
razorboy
2d ago
I have been increasingly souring on Trump's mockery of the faith for a while, this was just the straw that broke the camel's back. He clearly does not care about Christ at all, and only cynically signals his Christianity in an empty way.
I say this as someone who actually kind of likes Trump as a personality (though not a politician), but ... say what? If you asked me to write down a million qualities about Trump I don't think "cares about Christ" would ever make the list. How did you get here in the first place? I must know.
dr_analog
razorboy
5d ago
It's odd that this is so underserved a market. I would expect it's not a huge money maker but plenty of Magic the gathering / game shops stay afloat and they're not raking it in.
There's an electronics shop in my town actually but it seems to serve a slightly different market, they pretty much never have what I need but there's always people in there with some kind of antique electronic device they need help fixing.
dr_analog
razorboy
6d ago
IMO the 4chan transes are older and a little more doomed about it. But also possibly were into trans before it was cool. In the old days it took actual work and guts to research and source and take gray market hormones. You're probably cool AF to do that with no social support at all.
Nowadays, any retard can get hormones if they say "trans" and they are also more likely to hang out on Reddit.
Probably think of it like an alternate universe where, after years of being in the shadows, bodybuilders were validated for wanting to be swole and doctors would write RXes for as much steroids as you can handle, covered by insurance. That generation of broscientists would be SO annoying. And they would be all over Reddit while the OG bodybuilders stuck to 4chan.
A lolcow on Twitter the other day said there's two kinds of trans people. There's Reddit trans and there's 4chan trans. And then I was enlightened.
dr_analog
razorboy
8d ago
I cannot believe what kids take away from movies.
I was really sensitive to letting my kids see anything at age 4.. Then a friend invited us over to watch My Neighbor Totoro and I thought surely this completely harmless Studio Ghibli movie with no bad guys, no violence, no anything but cuteness would be fine. Surely.
Then the next day my wife went for a walk on her own and left him with his older brother. About ten minutes later the to 4yo slipped out the door without older brother noticing. Mom was on her way back from her walk and found him, three blocks away(!)
4yo was re-nacting the scene in Totoro where the older sister runs around the countryside at length looking for her lost younger sister. Except looking for mom.
wdym?? that guy is peak sigma male
more seriously I'm thinking something closer to Cyberpunk 2077 motif, I'm saying TRON because it's more widely recognized and still involves the same tech tree from a lighting perspective
Parts arrived for my TRON helmet/vest/bike lighting project. I spent the weekend reading about ESP32 programming, buck converters, logic level shifters, etc.
I spent a long time trying to diagnose problems with the logic level shifter before just skipping it. Then the LEDs on the lighting strip lit up fine with the ESP32 driving it; got a basic POC working. Next it's time to pick a battery pack and also find a project box I can cram everything into. I guess also figure out if I want to use clear heat shrink tubing to protect the LED strips or get silicone diffuser tubing.
Also I'm getting a bit annoyed that everything I need comes in a 6-12 pack that costs $10 on Amazon. Prime shipping has it's down sides I guess.
Also there's, like, a lot of annoying one millimeter misalignments to deal with? My ESP32 doesn't fit into my breadboard, and neither does the buck converter. Only the logic level shifter does. Cool. Guessing it'll be some different annoying combination of issues with a protoboard?
It would be really nice to walk into a store or sit at a small electronics work bench just to see what all of the options are rather than blindly guessing at what I might need off of a web site.
This is what I mostly don't enjoy about small electronics hacking, feels mostly like you need to be very familiar with catalogs to avoid wasting a ton of time or making a lot of compromises.
dr_analog
razorboy
11d ago
Yeah I agree with this. I see these banned books week posters at my library. My ten seconds of thinking reaction is: good old librarians, defending free speech.
Then I think about it for a few minutes and wonder how books actually could be banned, and that that looks like, Also what happens if they don't take any particular stand on banning books, like marking it as BANNED in the online catalog, but instead reduce copies in stock to zero.
My local library doesn't stock The Bell Curve by Murray. That's odd. It's a best seller in psychology that sold more than a million copies. It never even shows up in the online catalog, period. You would never know it existed.
Did the librarians deliberately disappear it? Do they say "look even though we have a five story building downtown in a blue town in a blue state that allocates significant revenue to this library we have limited funds and cannot stock every book"? How would I even begin to contest this.
I assume the ideal librarian chooses books to stock based on some standard like popularity but also public good value but I realize it's probably much more arbitrary than this. And a lot more inscrutable for outsiders.
I note they do have eight copies of Gender Queer, 4 currently loaned out.
dr_analog
razorboy
12d ago
Sure, but do we really need drawings of it, and not the character as she (or he, if we're being correct in our terminology) thinking about the experience, what he expected, and how that was different from reality?
I think so. It's a graphic memoir.
Let me just dump some assorted background opinions that will probably offend approximately everyone, unintentionally.
- I homeschool my kids currently
- I hope to never send them to public school
- If I do send them to public school, I very much don't want public school to teach them sex ed
- I wouldn't really mind if my teenagers found pornography
- I would mind if my pre-teenage kids found pornography, but not really as a moral crisis, but it would just be annoying to have to explain and then have to deal with them playing around
- All things considered, Gender Queer looks pretty tame and actually a very insightful book. I imagine if you're asexual and don't know it, life is fucking weird and this book would have helped you considerably if you had found it. If you're not asexual your reaction is probably "wow, thank god I have normal sexuality"
- I do believe transgenderism could be partially a social contagion caused condition, but Gender Queer is not the kind of book that turns anyone trans
So, yeah, I don't consider the awkward sex acts in Gender Queer pornographic or erotic. But I also am not that concerned about the risk even if some kids just flip through it to look for the dick scene and don't ever read a single word.
I'm fine with a school library stocking it for teenagers, but I'd be shocked if they were happily letting 8 or 9 year olds take it out and read it.
IMO that's still missing the point. They were excited about it and tried to do it and found out it was awkward and disturbing rather than exciting. Like the same panel and the next several:
"I can't feel anything"
"This was much hotter when it was only in my imagination"
"Hey Z... let's try something else"
In thought balloons: "But now that I've had sex a few times I'm not sure I really need any more. Trying to get off in front of someone is kind of weird."
"I think when I do orgasm, it's not because of my body but in spite of it"
They were clearly acting out roles assigned to them by others and by media. If anything it was saying "putting on a strap-on and sucking it isn't what being queer is about"
To me this is practically anti-erotica. It's like reading about asexual people describing PIV sex as rubbing their elbows together.
It’s about a kid growing up not feeling feminine, struggling to fit into pre-built sexual and gender roles, experimenting, and ultimately realizing she's asexual and nonbinary.
It's definitionally unsexy as a whole.
It's a blowjob, dude. It’s erotica by its very nature. It shouldn’t be in the public library.
It's actually a strap-on. And neither of the characters finds it sexy. The scene is meant to be awkward.
Confused teens not even knowing how to fuck might be gross but it doesn't strike me as erotica.
dr_analog
razorboy
13d ago
So if you're my roommate and you're hiding from ICE and they show up at the door and I answer I can simply tell them to go fuck themselves and there's nothing they can do about it.
What Judge Dugan is alleged to have done is basically this, so... seems like she's in the clear.
Kind of surprised a federal judge signed off on her arrest.
dr_analog
razorboy
14d ago
Don't tell anyone but the stock exchanges are all in datacenters in NJ now. The trading floor on Wall Street is just for show.
dr_analog
razorboy
14d ago
Thanks, good info. I'm going to try ordering some things and see how they go.
There are premanufactured flexible 'sheets' of WS2815s that may be easier to work with for something like a vest, if they have enough density and brightness for your task.
Oh jeez I was just planning to do the contours of our cargo bike with strips but after all, why not? Why shouldn't I paper every square inch of the box with these sheets?
Looking up this term has convinced me that any research related to child rearing is absolutely insane.
Yes. Fucking everyone in the world has opinions on parenting. It's worse than politics.
Re: Ferberizing
I think if I knew we were looking at 2 years of that shit we would have been much more hard about it. Something about being in the midst of it made it unthinkable.
We were all set to do it with the second kid but she barely put up a fuss.
dr_analog
razorboy
16d ago
Okay so if I was willing to forego individual addressing of LEDs, sounds like COB lights would be a good way to go?
I was imagining creating a 3D model of where every pixel was and being able to do a really sophisticated animation based on that (e.g. a pulse starting at some center like my vest and radiating out to the edges of my helmet and bottom of my bike), but there's only going to be a couple of light strips per item (helmet, bicycle, vest) so I don't imagine anything too intricate will show up and I should just consider controlling the color of all strips on an item as a single unit.
Action shot of the Charger on a "road".
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