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I swear the only thing that the Bolte Bridge attracts more of than seagulls is photographers. Also the desktop I have now for ML work is powerful enough to do
by llm_trw 3y ago
I swear the only thing that the Bolte Bridge attracts more of than seagulls is photographers.
Also the desktop I have now for ML work is powerful enough to do a full 3d simulation of a lens using the full Maxwell equations from first principles. I remember doing the back of the envelope calculations that I'd need the Bluegene/L back in my undergrad days to do it for real, well: https://bnnbreaking.com/arts/video-gaming/nvidia-geforce-rtx-4090-outperforms-ibms-bluegene-l-a-leap-in-computing-power/ https://bnnbreaking.com/arts/video-gaming/nvidia-geforce-rtx...
What a time to be alive.
- hef19898 3y agoWhy would you use ML to develop well understood formulas from first principle, if you can also have a properly developed program for the same purpose?
- jstanley 3y agoI think the ML that the desktop is for, and the optical calculations, are 2 unrelated projects.
- hef19898 3y agoWhich would actually make a lot of sense, now that I think about it...
- llm_trw 3y agoYes, OP was doing linear ray tracing to see how the lens would perform on the video. I remember doing the same in a computational physics class way back in the day and talking to the lecturer about what you'd need to simulate real optics without approximations in the equations. The answer was the worlds fastest super computer at the time. I was a bit shocked that he claimed that was the state of the art for lens manufacture in industry too - no idea how true that was. But figured that if you needed that much computation it made sense. Well I have 2x that under my desk now and I use it to do local development before I push to cloud machines with 100x the power where the actual work happens.
- itishappy 3y agoToday most commercial lens design software still uses geometric ray tracing. (Even if some can do EM simulations too.) Not entirely surprising. You want to be able to run stuff a bunch of times to optimize it. https://www.synopsys.com/content/dam/synopsys/optical-solutions/documents/whitepapers/accurate-diffraction-analyses-code-v.pdf https://www.synopsys.com/content/dam/synopsys/optical-soluti...
- throwway120385 3y agoYou could develop novel lens shapes, for one.
- metadat 3y ago> I swear the only thing that the Bolte Bridge attracts more of than seagulls is photographers. Thanks for encouraging me to search about it, and quickly realize Bolte Bridge is a natural target due to relative level of architectural sophistication as well as being easily accessible. https://en.wikipedia.org/wiki/Bolte_Bridge#/media/File%3ABolte_Bridge%2C_Melbourne_2017-10-28.jpg https://en.wikipedia.org/wiki/Bolte_Bridge#/media/File%3ABol...
- samstave 3y agoMay you please expand? Truly interested