[HN Gopher] Carmack on star fields in VR
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       Carmack on star fields in VR
        
       Author : tosh
       Score  : 36 points
       Date   : 2022-12-02 21:49 UTC (1 hours ago)
        
 (HTM) web link (twitter.com)
 (TXT) w3m dump (twitter.com)
        
       | HackerNot wrote:
        
       | jws wrote:
       | He touches on line graphics as having the same problem rendering.
       | I run into that when making strip charts.
       | 
       | In general, the higher level your graphics API, the harder it is
       | to get horizontal and vertical lines to draw on the physical
       | pixels. At the frame buffer level it is trivial. Cocoa and UIKit
       | it is possible with some effort. SwiftUI it is impossible (you
       | will end up using the escape hatch to Cocoa or UIKit). HTML is
       | hopeless.
       | 
       | When printing meant writing some Postscript it was a little work,
       | but doable. Getting it onto a printer through a modern printer
       | API is essentially impossible.
       | 
       | Fundamentally this is why most graphs you see online look like
       | they were drawn with a worn out felt tip marker. It hides the
       | sins at the expense of limiting data density and precision.
        
         | Cullinet wrote:
         | Thank you for your report. I have to represent scaled graphs
         | also online via browsers and had been curious about the
         | implementation of scaling through APIs and ultimately browser
         | based drivers. My concern is that the human brain is very much
         | better at comprehending spatial dithering, critical for e.g.
         | price trend extrapolation, than the open literature gives
         | credit. Vital research by CSERIAC at Wright Patterson was
         | declassified to sell the post SDI COTS reboot, but heavily
         | reclassified after 9/11. This has been to the great detriment
         | of the human computer interaction research community which
         | really didn't survive into this century.
        
         | bombcar wrote:
         | Reminds me of this: http://www.ericbrasseur.org/gamma.html?i=1
        
         | omeze wrote:
         | I don't quite understand this (not a graphics dev) -- if you
         | have the ability to get the viewport size in a browser, and if
         | the display is running at its native resolution, why do you not
         | have pixel-perfect accuracy?
        
       | pyrolistical wrote:
       | He is talking about actual star fields.
       | 
       | Not to be confused with the upcoming game
       | https://en.m.wikipedia.org/wiki/Starfield_(video_game)
       | 
       | The title should fix the capitalization and use two worlds
        
         | Cullinet wrote:
         | Starfield projection is a critical system. You want to see
         | Bogies from the first pixel possible.
        
         | tosh wrote:
         | fixed, ty
        
       | abudabi123 wrote:
       | NASA should get gaming on this outreach operation potential and
       | continue-on John Carmack's tradecraft. Seed $57 million to John
       | Carmack's Kerbal Space Program to define and support "perfect"
       | star fields in the compositor.
        
         | Cullinet wrote:
         | The Executive Order commissioning NASA explicitly mandates the
         | primary political psycho political purpose of NASA. NASA never
         | has been and cannot be a purely scientific research institution
         | and neither can it entertain traditional scientific endeavour.
         | This was the reason why The Gipper , the most inscrutable of
         | all our Presidents to contemporaries, "friends" (nobody ever
         | thought anyone other than Nancy was his true friend) and
         | observers both sides of the curtain confirm profusely in
         | memoirs that Reagan was every bit the Brinksman who Kruschev
         | and Gorbachev reported was the hair trigger risk that got the
         | Soviets to first of all write (Kruschev)most conciliatory
         | letters and only then write with posture, and the almost
         | instantaneous SALT ratification by the Politburo and Duma
         | attested to this along with much later (and excellent)
         | investigatory research by Martin Sixsmith in particular.
         | 
         | Ed. Gipper not hopper sp.autocorrect
        
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       (page generated 2022-12-02 23:00 UTC)