Darshan Shankar Profile picture
Jul 7, 2020 5 tweets 6 min read Read on X
I got incredibly lucky: with a rare morning with no fog in San Francisco, I was able to photograph Comet #NEOWISE from the Golden Gate Bridge

It peaks today at Magnitude +1 brightness and will be visible to the naked eye for the next week.

#cometc2020f3 #cometNEOWISE #abc7now ImageImageImageImage
You don’t need a DSLR or telescope to see Comet #NEOWISE.

Although I used a DSLR, you can see it with the naked eye, and capture a photo with your iPhone (see below - a 3 second exposure!)

Go check it out this week! Low to the north-east horizon from 4-5AM before sunrise. ImageImage
More work-in-progress shots of #CometNEOWISE

This is unedited, just comet aligned and ABE in PixInsight.

Canon 6D, 135mm f2, 34 minutes of exposure (30s subs). Shot on July 18 from Lake Sonoma, California

Lots of detail in the blue ion tail and yellow dust tail. Image
I must thank @peachastro @SeVoSpace and @Komet123Jager (the world experts in comet photography) for inspiring me

And shout out to @tyreus. He captured this amazing portrait of me in front with #CometNEOWISE

See more: Image
Comet alignment and star rejection in PixInsight is proving tricky with #CometNEOWISE

Two attempts had opposing results. One dramatically improved contrast (right), while the other (left) lost contrast but rejected stars better.

Still not perfect Image

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More from @DShankar

Sep 24, 2020
Funny story.

@ID_AA_Carmack talked about the Fandango VR app on his annual Connect talk.

He understands how cool 3D movies are in VR, and pushed to bring Fandango into Quest.

Facebook gave Fandango a special deal, allowing off-platform credit cards. No Oculus IAP required.
Both Fandango & Bigscreen have 3D movie rentals. For every dollar, 60-80% goes to studios.

Unlike Fandango, Facebook is forcing us to pay them 30% IAP fee, or get kicked off the store.

We rent the exact same movies for the exact same price as Fandango!
Bigscreen loses >100% for every dollar of revenue, while Fandango can make money in VR.

Sucks that I've poured 6 years into building software for the Oculus Platform.

@ID_AA_Carmack gets to bring Fandango into VR, but Facebook won't help devs that have been here from day 0
Read 4 tweets
Aug 18, 2020
Let's talk about how Facebook is screwing us in VR.

A major use case of @BigscreenVR is like the "iTunes of VR": we offer 3D movie rentals for $4.99.
Digital Video distributors like @BigscreenVR give movie studios 60-80% of each transaction.

Oculus also has movie rental features, and similarly pays movie studios a % of each transaction.

However, Facebook is forcing Bigscreen to pay 30% for every movie rental sale we make.
It is financially impossible. Oculus makes money from their competitive video store, but Bigscreen's video store must pay Oculus: we lose >$1 for every $1 we make.

We asked for help, Facebook told us to find a better business model like games.
Read 7 tweets
Apr 28, 2020
On a personal note, I photographed the Andromeda Galaxy with my RASA 8" telescope instagram.com/p/B_iHC_JJw9s/

Prints available on @heyadam's new site "Prints for Relief" shutter.co

All proceeds donated to the Lee Initiative to help restaurant workers in need #COVIDー19 Image
Over the past decade, I've tried (and failed) many times to capture galaxies and nebulae. Astrophotography is a highly technical and punishing hobby.

I finally succeeded last year.

Here's my shot of the Lagoon and Trifid nebulae. instagram.com/p/B_iGu7jJlCp/ Image
Here's my shot of the Cocoon Nebula, captured on the @Celestron RASA 8" telescope and ZWO ASI 1600MM

instagram.com/p/B_iHONWpDNj/ Image
Read 4 tweets
Sep 26, 2018
1/ Here's why Oculus Quest is the "iPhone of VR" and why it matters so much
2/ Today, VR headsets SUCK. They each have bad tradeoffs that lead to an unpleasant user experience. The future of VR are Standalone headsets:
3/

A VR headset must have positional tracked heads & hand controllers ("6DOF")

It must be standalone ("untethered") without a clunky Windows PC or plug-in smartphone.

It must be frictionless and take seconds to get into VR.

It must be affordable, not $1500 (remember 2016?)
Read 5 tweets
Sep 19, 2018
1/ What people don't understand about Apple's advantage in creating a world-class AR headset (versus HoloLens or MagicLeap):

Apple is shipping the core pieces of an AR headset today to hundreds of millions of users
2/ Every iPhone now has a depth sensor.

Apple will ship nearly 100 million depth sensors in 2018/2019. They have successfully miniaturized (with a low cost BOM) the fundamental sensor for inside-out positional tracking of any headmounted VR/AR device
3/ The most powerful silicon in the world. The in-house designed A12 SOC is leaps and bounds faster than any other mobile CPU/GPU. You know what's compute intensive? AR.
Read 7 tweets
Jan 11, 2018
Just a couple years ago, achieving this fidelity of facial & body mocap would cost a studio millions of dollars

Today all you need are commodity body trackers and an iPhoneX (facial)

Amazing work @KNLstudio

Some awesome VR tech at @siggraph 2018 this week, including @KNLstudio's face/body mocap and Pinscreen's photorealistic avatars, both relying on the iPhone X
OH MY. The latest version is absolutely mind blowing.

Look at those expressive eyes & eyebrows, the lip & cheeks, and the subsurface scattering on the skin!

This is Pixar-level, in real-time, without a mocap studio or render farm. @IKINEMA @Xsens @KNLstudio y'all are geniuses
Read 4 tweets

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