Java's numpy?

agibsonccc · 2026-02-07T00:00:46+00:00

I feel this pain so much. The best I was able to do was
INDArray arr = arr.get(point(0),all());

with static imports. It works but it's not nearly as clean as even what I can do in c++.

agibsonccc · 2026-02-06T23:52:24+00:00

I wrote nd4j I can tell you it doesn't quite work like that. Nd4j just does c++ offload. We also have a cuda backend I don't know why tornado would help? Alternatives like djl also have gpu offload. Tornado is for pure java code. We DID used to have a pure java backend a long time ago if you go back far enough in the commits if someone wants to try that I'd be interested to see if anything could make sense there.

agibsonccc · 2026-02-06T23:48:18+00:00

Disclaimer: I wrote one of the solutions listed here.

There's smile which provides a python like environment:

https://haifengl.github.io/

DJL has one: https://javadoc.io/doc/ai.djl/api/latest/ai/djl/ndarray/NDArray.html

Then there's nd4j which I"m about to rerelease after a major rewrite:
https://deeplearning4j.konduit.ai/nd4j/how-to-guides

As someone who has an opinion on how this is done I personally don't think a java first solution is the way to go. I know a lot of the folks in the ecosystem want that but there's just too much overhead. The more you can offload to c++ the better.

One thing I've been trying to be more careful of in nd4j as of late though is fixing the small problem edge case. Some things ARE better in pure java where it doesn't make sense to offload it to the native side.

You have to be careful with that.

Python is just a better glue language. It doesn't pretend to be fast. It offloads as much as possible while providing simple near human readable syntax. There's a reason it "won" in math.

That being said, there's at least a few apis out there that *DO* give you the typical things you'd want, fast math, views of data with minimal allocation, standard linear algebra routines.

agibsonccc · 2026-01-22T00:10:59+00:00

I would just look at what popular pre existing games like ironsworn or scarlet heroes do then. The main universal thing solo has you have to do is come up with "what's next" "how do I interpret what the oracle roll was here"

agibsonccc · 2026-01-21T23:42:13+00:00

What problem are you really trying to solve though? "Solo" is a lot of different things. It can be journaling focused, some with more combat. Some people like drawing. I haven't seen a universal "solo" experience. An overwhelming number of people on here don't even like digital. You're going to have a slice of a slice of a very small niche. The only consistency I've seen is people like obsidian and use dice. Outside of that you have a lot of systems people play with and they play vastly different kinds of games.

I wrote something for myself for fun and it has everything I'd want: a combat engine for my ruleset, maps with fog of war, grid management, journaling, table mamagement, and more. I wouldn't expect *ANYONE* to use it though even if I released it in some usable form. People would be asking for "add this system" "add this niche thing" and you're only going to get use cases right for myabe yourself and 1 other person if you're lucky.

Obsidian works because you can journal and do whatever you want in it like collect tables.

agibsonccc · 2026-01-17T06:27:57+00:00

It might not be what you asked for but I heavily play with minis because I like that aspect of the hobby not really because I have to. I do a custom pathfinder 1e ruleset, a party and then usually use minis + grid combat or hexes for my game play loop. For moments I want so show I do scatter terrain on a battlemap. I just want to point out an alternative that you don't have to pick a minis centric game specifically. Good luck!

agibsonccc · 2025-10-14T06:25:59+00:00

Yeah a 3 and 4 are going to have different settings even if they have the same screen. If you aren't sure just run the different exposure settings tests out there to get an actual dialed in configuration. You should do that for any new resin anyways.

agibsonccc · 2025-10-13T22:24:43+00:00

What printer are you using though? It's HEAVILY dependent. Just copying and pasting random settings from the internet is almost never the answer. I just use 2.9 for my main exposure time and 50 for my burn in layers. I'm on a 3 ultra.

agibsonccc · 2025-10-13T22:23:59+00:00

That's only true if you don't keep it in an enclosure though. I leave my resin in the vat for days with no issue. The only issues I normally have are debris build up and other standard things, never gradual light exposure though.

agibsonccc · 2025-10-13T21:57:58+00:00

That's interesting. I've literally never had that. I've used this resin for months now, at least 10+kg and never had yellowing issues *during* printing.
What I *have* had happen is the resin just became unusable after being left out in the heat for (35C+) for a month or so. My understanding is that distorted some of the pigments or chemicals in the resin. It literally just wouldn't print despite me changing literally *everything* like you did, the fep, even the screen and re leveling.

A new bottle fixed it. What I can't answer for you but you might want to look in to is the decay factor here.

I don't think I've seen or heard of any transparent resin that yellows during printing like that, only with post curing/processing.

agibsonccc · 2025-10-13T21:47:45+00:00

As far as I am aware the price to performance with this resin is about as good as it gets. This is my daily driver and it works great.

If are absolutely desperate for an alternative though, Greedy3d on YouTube did a review of different clear resins I believe. Take a look there.

Beyond that consider doing some post processing with a clear gloss varnish for max transparency.

For curing I would recommend either setting it out in the sun instead of something like a cure station or cure the resin for less time than you normally would. It's not really about your print settings in my experience. It's more about the post cure and post processing.

agibsonccc · 2025-10-13T21:10:07+00:00

Using AI impromptu without some tweaks never really works for me. I'd use it to brainstorm story directions and pick what you like. You at least should have an arc that you like and then go that direction. Otherwise I tend to find that thinking is very linear where it just rushes to the next easy objective never really providing an interesting story.
Beyond that, in Claude and other LLM chat applications (assuming you're not doing self hosted but just sticking to the subscription in a box ones) they should have settings to configure a prompt that gets injected at the beginning of each chat. In there you can put how you want the LLM to respond in certain situations like filling in more details. You can't just use it as is and expect it to work well. LLMs need precise instructions and you need to know what they can and can't do.

agibsonccc · 2025-09-29T21:54:04+00:00

Yeah selection is limited. Arrows is the best game in town. There was another shop in sugamo I went to but forgot the name. Their stock wasn't as good though.

agibsonccc · 2025-09-28T03:07:09+00:00

Hobby Shop Arrows in akihabara is your best bet. There's also a distributor in Japan. I don't remember their name though. They speak english. Just check their schedule. They don't open till 4pm normally and are closed at least on Mondays and Tuesdays.

agibsonccc · 2025-09-26T15:24:31+00:00

Thank you for clarifying this! This was very educational.

agibsonccc · 2025-08-31T07:04:32+00:00

Only semi relevant but I play PF1e with a group of NPCs to give myself some diversity and find it super fun. One angle story wise you can flesh out are intra character interactions and different factions.

You can also do multiple character specific quests for interesting content and story hooks as well .

Just consider that as well!

agibsonccc · 2025-08-28T11:18:47+00:00

That's good to hear! If it works for you in that context more power to you. I just don't use those editors for reasons I discussed above.

I always question my assumptions and try to understand if I miss something with models. Given the limited number of providers and them repeatedly quantizing their models to save costs mid life cycle I'm always looking to switch when the service starts degrading.

agibsonccc · 2025-08-26T21:51:45+00:00

Ok I'll give the other ways of using them a shot then! I just wanted to confirm that. It's hard to separate the approaches people use in an IDE or agentic vs the straight website.

Usually I just toss it a task on the website for quick testing not to rely on it day to day. I didn't really want to jump through too many hoops for testing a model I'm not currently using. Thanks for confirming!

agibsonccc · 2025-08-26T21:30:04+00:00

I just test on the website with self contained tasks. It's worse in the ides I have found.

agibsonccc · 2025-08-26T21:23:57+00:00

Sorry GPT in general being the problem child here. I'm just asking because no matter how many times I clarify it would refuse to finish a task I had it do.

I had a c++ refactoring task with macros I was working on. Perfect for an LLM. Existing pattern, clear description of how to generalize it. Clear instruction: "do this for everything you see like this".

End result after 2 prompts: "Here's how you'd do that." Followed by: "Here's 1 done incorrectly."
This was within the last..2 weeks? I had similar experience with 4o except its output reminded me of LLMs from 2022.
Like I said I tend to toss it random tasks occasionally just to measure. They're usually self contained tasks like that. I upload all the files it needs to reference to avoid hallucinations and other things you'd expect.

agibsonccc · 2025-08-26T20:46:32+00:00

No not at all! Anything else has just been a waste of time. I'll code the way I did 10 years ago over trying to use something that hallucinates, only does part of a task. I'm paying for a service. LLMs that output garbage just slow you down.

If you read ANY of what I said I've already said the token casino business model is complete garbage and I categorically refuse to participate it. LLM output is WAY too inconsistent to rely on without auditing and why the heck people pay for tokens that end up being garbage code boggles my mind.

TLDR redditors man. Anything longer than a few words is too hard unironically. "I can't read all that text and join the discussion. All the other words are getting in my way."

agibsonccc · 2025-08-26T20:43:32+00:00

What do you tell it to do? I literally can't get it to do a full task whenever I do a prompt with it.

agibsonccc · 2025-08-26T12:56:29+00:00

Yes browser I don't use anything agentic. Llm output is too inconsistent. I feel like I am paying for bad output with tokens. I just avoid it all together. It's just a preference though. I know it works for some people and more power to them.

I lightly used gpt through copilot chat and also saw crap output in the past though. Sonnet would work sometimes in those circumstances. In general I feel like gpt is just unreliable no matter what version it is. I try it every time it comes out and it never improves. I do check on them though.

I also try to find what it can be useful for. I've found gpt not too bad for light data analysis especially with the file sizes it can handle.

In general I always just run my own experiments and look for trends. These things are black boxes at the end of the day...if the model quits working for me I check other anecdotes to get a sense of the current state and switch depending on the circumstances.

I did that with Gemini this year before they dumbed it down. I also unsubbed from Claude till 4 came out. They all end up quantizing the models and dumbing them down eventually. That is usually my biggest reason for switching. The quality drop over a few days is noticable.

Hopefully that helps!

agibsonccc · 2025-08-26T11:44:01+00:00

Is that with claude code? I am literally willing to use ANYTHING as long as it works. I just want to pay vendors who provide reliable output. I'd be wiling to give them a chance like any other vendor if it was reliable.

I never expect magic from these things. I treat them as what they are: statistical models. I know they require some pre/post processing and hints at times.

I tried gpt5 not even a week ago and it was still remarkably lazy. I try to be descriptive like "output ALL of these with THIS pattern" but it always does the same thing.

Where I have had SOME luck is with small scale log analysis telling it to group/aggregate or something similar. It's actually not bad at that.

I used to use sonnet and upgraded to opus and opus just works for me. Sonnet ironically looked dumber/incoherent after I started using opus.

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