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Ask HN: What are you working on?

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Re: Ask HN: What are you working on?

#631

Mapping shadows across the earth in real time based on location and time of day. https://shademap.app/ Things I learned along the way: - How slippy maps work and Leaflet.js - Most elevation maps use data collected back in 2000! [1] - You can perform calculation on the GPU without knowing GLSL [2] [1] https://en.wikipedia.org/wiki/Shuttle_Radar_Topography_Missi... [2] https://gpu.rocks/

Wow, the shadow takes into account the relief of Earth. Looks very interesting!

Re: Ask HN: What are you working on?

#632

Mapping shadows across the earth in real time based on location and time of day. https://shademap.app/ Things I learned along the way: - How slippy maps work and Leaflet.js - Most elevation maps use data collected back in 2000! [1] - You can perform calculation on the GPU without knowing GLSL [2] [1] https://en.wikipedia.org/wiki/Shuttle_Radar_Topography_Missi... [2] https://gpu.rocks/

This is mighty interesting !

Re: Ask HN: What are you working on?

#633
Things I’m working on at least once a week:

- Learning how to play this, very slowly: https://youtu.be/egWhW_BdLrI

- Audio synthesis from scratch in C++, and hacking a music synthesis engine on top of it. Consequently, learning about digital signal processing, and studying how different synth sounds are created.

- Working on a Vulkan-backed renderer optimized for multi-surface rendering.

- Learning and practicing cartooning / drawing. I like the art style of Adventure Time and tend to gravitate towards the characters within.

- Writing down ideas as they come around for a game I’m making. Anything goes: storyline ideas, specific dialogue I’d like to use, visual effects I want to create.

Re: Ask HN: What are you working on?

#634
Playing with the idea of a static site generator for the masses, instead of the multitudes of CLI solutions out there. Something to point at a folder of maybe 5 markdown files, and generate a site for personal or small business use. (not a blog)

I hate that friends who need a website have to opt for overkill solutions like Wordpress, or a $10 subscription service, just to get a 4-page site on the web...

Re: Ask HN: What are you working on?

#635
Attempting to escape traditional rendering pipelines with a pure compute not-rasterizer/not-quite-raytracer. It can't use any of the rasterizer or raytracing hardware on modern GPUs, but in return it gets a lot of flexibility.

Some early benefits:

1. Being free of linear transforms for projection allows it to use other projections for free, like stereographic fisheye. (You can also design the projection to map onto a VR headset's view without needing a warp shader, giving a better sampling distribution.)

2. Global acceleration structures with fast traversals and flexible intersection routines can make full resolution noise free soft shadows cheap.

3. All input and scene state is uploaded asynchronously; the GPU samples it right before rendering. Full input latency times can be as low as the monitor refresh time: https://twitter.com/RossNordby/status/1335351074069368832

I'm still trying out some permutations for the traversals (mostly different kinds of sharing traversal work) but all the prototypes are looking pretty promising.

In the long run, the plan is to push beyond hardware rasterizer limitations with high geometric density and avoid the zoo of problems associated with screenspace. Things like analytic approximations for antialiasing, transparency without endless pain, and eventually fully decoupling shading from screenspace and moving into other dynamically prefilterable spaces to open up some forms of supercheap global illumination. The end goal is high framerates, extremely high geometric density, extremely low latency, and very high image clarity (no screenspace temporal antialiasing!).

Going to be an on and off project for a least a couple of years more, but so far so good.

Re: Ask HN: What are you working on?

#636
It all started as a research initiative backed by a Japanese government-funded Startup to study some of the biggest problems in Indian Agriculture. Then the Pandemic happened; investors walked off.

With the change in customers' needs fueled by the inability to move around quickly, we started looking more deeply at the Satellite data we had access to (Japanese JAXA and European Sentinel).

We have tweaked our offerings to some of the biggest problems our commercial farmers had. Our 4-member team is building remote capabilities to monitor a farm anywhere on earth and check its crop growth and water stress.

The push from Startup School[1] and the awesome cohort at On Deck[2] helped me, and eventually the team be on check and rapid growth that we find it hard to onboard new customers with our current resources.

This has become our full-time effort and I have named our company -- Valinor Earth[3].

1. https://www.startupschool.org

2. https://beondeck.com/r/BrajeshwarOinam (talk to me and I will give you a slightly better nudge of getting interviewed).

3. https://valinor.earth

Re: Ask HN: What are you working on?

#638
Currently not building but I came across this platform called Fintor. (Www.Fintor.co) It’s Robinhood for real estate investing. You can invest in an app with $5 in a house. Super cool. I just joined their waitlist on their website. Can’t wait to access. Seems like they’re giving away free shares of houses as well. One of the coolest ideas I’ve came across recently. Anyone have access to the app yet?

Re: Ask HN: What are you working on?

#639
Not building but this is the coolest product I came across. https://fintor.co Robinhood for real estate investing. Only $5 to start investing in a property. I just signed up on their waitlist. They claim they’re giving away free shares too. If anyone has access to the app please comment.

Re: Ask HN: What are you working on?

#640

It's not exactly the same as what most people are posting about, but I actually restarted my bachelor's degree, hopefully to finish it up this year. While I'm not super-popular on HN, I've gotten enough karma here to where people probably at least a small percentage of people here recognize my username, and know that I never finished my bachelor's degree. I've done ok as a software engineer, and I'm proud of the prog…

I finished my bachelors this year, nearly twenty years after I started. I likewise suffered a bit of inferiority anxiety related to not having one. After I shared my accomplishment I learned quite a few people in my organization didn’t hold such a degree (much to my surprise).

Congrats on pursuing it. It’s a worthy goal. I wish you luck.

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