Over the holidays I built a simple website which lets children (of all ages) easily draw something and then bring the sketch to life using AI and a prompt.
Only shared it via Show HN so far, and am still regularly getting some creative submissions. Will be sharing it at an art festival later this year so kids can have a more active role when visiting.
Thank you everyone for taking a look. The website had around 1,200 visitors and received over 90 sketches over the past 24 hours, and I'm happy to say I could approve almost all of them (all except 2 'rocket' sketches which were starting to look a bit dubious, but all in good fun).
The results look very interesting to me, and I think as a next step I will look into adjusting the prompts (both positive and negative). On the one hand, I'd like to keep the sketch/drawing look rather than going full photorealism as some of the videos do, on the other hand I don't want to restrict the users' creativity too much.
I plan to simplify this further and optimize it for tablets. Some friends said they'd like to have their kids try it out it and I like the idea, as by having to sketch it keeps the user in a more active role.
Please let me know if you have any other suggestions.
I'm actually trying to reduce the 'funkyness', initially the idea was to start from a child's sketch and bring it to life (so kids can safely use it as part of an exhibit at an art festival) :)
There's a world of possibilities though, I hadn't even thought of combining color channels.
I think the main reason is that the model has a lot of training material with Chinese text in it (I'm assuming, since the research group who released it is from China), but having the negative prompt in Chinese might also play a role.
What I've found interesting so far is that sometimes the image plays a big part in the final video, but other times it gets discarded almost immediately after the first few frames. It really depends on the prompt, so prompt engineering is (at least for this model) even more important than I expected. I'm now thinking of adding a 'system' positive prompt and appending the user prompt to it.
Thank you. I've noticed that too, and also that it has a tendency to introduce garbled text when not given a prompt (or a short one).
This is using the default parameters for the ComfyUI workflow (including a negative prompt written in Chinese), so there is a lot of room for adjustments.
Thank you. I'm running it locally on a 4090 (24 GB).
I was running into OOM issues with Wan 2.2 before, but I found the latest version of ComfyUI can now run it (using about 17 GB of VRAM for what I assume is a quantized model?).
Having the ability to do real-time video generation on a single workstation GPU is mind blowing.
I'm currently hosting a video generation website, also on a single GPU (with a queue), which is also something I didn't even think possible a few years ago (my show HN from earlier today, coincidentally: https://news.ycombinator.com/item?id=46388819). Interesting times.
Started working on a case discussion platform for students almost two years ago. Mostly for dentistry and medicine, but it's template-based so works well for other purposes (e.g. teachers, social workers, etc.). It's going well and is being used by three universities right now.
On the way, I developed lightweight image editor and 3D model viewer components, which I've open sourced [1].
Started working on a case discussion platform for students around 18 months ago. Mostly for dentistry and medicine, but it's template-based so works well for other purposes (e.g. teachers, social workers, etc.). It's going well and is being used by three universities right now.
On the way, I developed lightweight image editor and 3D model viewer components, which I've open sourced [1].
Author here, I forgot to mention the project is written using Svelte 5 and daisyUI, because I wanted to try the tech stack out.
I have to say I quite like it for more complex interactive components like this one, but still much prefer django with some htmx + Stimulus JS sprinkled in for the rest of the website.
Photography is a hobby of mine. After putting it off for years, I finally decided to start sharing my photo collection with friends and family.
This resulted in another side project, https://mishmash.photos/ -- a website to organize, share and collaborate on albums (because I always lose photos when going on trips with friends). There are better apps out there for this, but this one is mine.
Thank you for the feedback, that's a point that several commenters have brought up.
The problem with the interdental brushing video specifically is that we can't show how to use larger brushes on young healthy patients, as they don't have the spaces for it. But I will think about how we can improve that video (the comment above suggested moving it down in the page, to start with the 'gentler' videos).
I'm sorry to hear that. Like you correctly mention, genetics play a big role and are unfortunately (currently?) not modifiable, and there is plenty of evidence that a restored tooth is at higher risk of further issues/loss, so prevention is the best thing you can do.
Good job with your daughter! FYI, we are working on expanding the instructions to children, so watch this space ;)
> Dentists seem to be about 5-10 years behind the research on this topic.
Generalizations are usually not helpful, I think it really depends on the dentist. I'm not sure there are proven benefits to oral microbiome testing, except in some very specific cases.
> The most significant cause for caries is S. mutans.
The 'Beyond Streptococcus mutans' section in TFA explains that the situation is much more complex than this; even if it is, good oral hygiene and reduced sugar intake (both in quantity and frequency) are still the best way to reduce the amount of biofilm present on teeth (which is a requirement for caries formation, whether S. mutans is there or not).
> Diet is the most significant way to affect gum disease.
The current clinical treatment guidelines for periodontitis[1,2] only mention that the benefit of weight-reducing diet and lifestyle changes is unclear (for treating periodontitis, obviously), and that oral hygiene is still the most important thing you can do yourself for the prevention, and, once established, to assist in the treatment of the disease.
While there are indeed many factors (genetics, the specifics of the microbiome in your mouth, probably some we don't even understand at the moment) at play, oral hygiene (and diet for caries, but not gum disease) is currently considered by far the most important modifiable risk factor.
Thank you all very much for the feedback, it gives me a new perspective on things. We wanted to show a real case, rather than animations, because we thought it would be clearer for our patients; but we are probably desensitized to watching stuff like this. Would you prefer to see a 3D animation instead, or something else?
It may still take us some time to reach that goal, but the good news is that we have an effective solution available right now: keeping good oral hygiene is known to prevent both caries and gum disease, and takes less than 10 minutes a day for the average person.
If you need more information, we recently developed a free website to get you started:
https://lifelongsmiles.hk/
https://funsketch.kigun.org/
Only shared it via Show HN so far, and am still regularly getting some creative submissions. Will be sharing it at an art festival later this year so kids can have a more active role when visiting.