[HN Gopher] Carmack on star fields in VR ___________________________________________________________________ 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 ___________________________________________________________________ (page generated 2022-12-02 23:00 UTC)