[HN Gopher] Ray Tracing in Notepad.exe at 30 FPS (2020) ___________________________________________________________________ Ray Tracing in Notepad.exe at 30 FPS (2020) Author : madmax108 Score : 273 points Date : 2022-10-10 13:51 UTC (9 hours ago) (HTM) web link (kylehalladay.com) (TXT) w3m dump (kylehalladay.com) | [deleted] | anaisbetts wrote: | Love this though I have to ask, wouldn't getting the HWND of the | Edit Control via WindowFromPoint and sending WM_SETTEXT be easier | than digging through memory? | | I guess the point may be to learn how Cheat Engine can be used in | a practical way to hook things which is definitely more along the | lines of some of the author's other posts! | scoopertrooper wrote: | I assume this allows them to get to 30fps. | quickthrower2 wrote: | And he found it less boring too! | rahen wrote: | That seems to be ray casting (a la Wolfenstein 3D), not ray | tracing. | karma_fountain wrote: | They are really historically the same thing, but I think ray | casting has come to mean ray tracing a lower dimensional thing | like a map and representing the results in a higher dimension, | like 3d space. | zardo wrote: | Seeing the rotating cube and glancing over the code, it looks | like ray tracing to me. | chunkyks wrote: | Every time I see someone's off-piste raytracer project, I feel | compelled to link my own silly contribution to that diaspora: | https://github.com/chunky/sqlraytracer | aliqot wrote: | Involuntarily said 'woah' | chunkyks wrote: | Thank you! I try! | alex989898 wrote: | That is really impressive! | guyzero wrote: | Sadly I can only upvote you once for using "off-piste" | soheil wrote: | For those who don't understand the significance of this I highly | encourage you to learn about ray tracing and the complexity of | it. If combining something that complex with something so simple | (Notepad.exe) is not art I don't know what is. | st_goliath wrote: | > For those who don't understand the significance of this I | highly encourage you to learn about ray tracing and the | complexity of it. | | Ray tracing, at it's core, is actually beautifully simple. | | Also, ray tracing is absolutely not the interesting (or | "significant") part of this article. I highly encourage to RTFA | first. | | As for combining the two: having read on Raymond Chens blog | about all the optimization that went into Notepad over the | years, I'd guess Notepad is the real complex part here. | gmiller123456 wrote: | I often considered the lure of raytracing as a project was that | it was rather simple to get really good results. Of course | there is no limit to how complicated you can make one, you | don't have to put much time in to get really nice images. | corysama wrote: | I'm assuming you've seen https://raytracing.github.io/ ;) | CyberDildonics wrote: | Do you think it might be a little patronizing to assume people | don't understand that text inside notepad is being used as a | display when there is a video showing it off? | dixie_land wrote: | Exactly. The idea is neat but it's no different than the mini | ray tracer you write in graphics 101, with the twist that the | output "frame" buffer is the text buffer of notepad | Silverback_VII wrote: | [deleted] | habibur wrote: | "Using notepad.exe as an output device" is the message here. | | But impressive job nevertheless. | AtlasBarfed wrote: | is curses that hard? Not just a sarcastic question, I've never | coded curses. | shadowofneptune wrote: | Curses does not exist on Windows, but this could be done | easily using Windows's console API or ANSI escape sequences. | Wouldn't be nearly as fun, though. | junon wrote: | Curses also uses escape sequences, and curses outputs are | supported by the Windows Terminal (not CMD.exe however). | Curses doesn't do anything fancy, just convoluted. | Dwedit wrote: | Hey I can draw in Notepad.exe too! GetDC(hwnd) | | Note that if you actually want to do something like this, you'd | probably need to deactivate the Edit window from rendering | anything, sending WM_SETREDRAW will probably work. | inglor wrote: | This needs a 2020 flare @dang | | Still very neat! | | Previous discussion: | https://news.ycombinator.com/item?id=23246221 | notorandit wrote: | As cool as useless. But still cool. | cphoover wrote: | Only a matter of time before doom | fareesh wrote: | Happened yesterday I believe. I saw it on Twitter | | https://twitter.com/SamNChiet/status/1579140903150964736 | Yuioup wrote: | The very reason this post exists. | [deleted] | aardvarkr wrote: | Great write up! Building a memory scanner and using that to | inject text into notepad seems like a fascinating journey and it | sounds like you learned a lot. Keep up the good work! | savant_penguin wrote: | This is hilarious | | Now feed it Doom haha | bcjordan wrote: | https://twitter.com/samnchiet/status/1579140903150964736 | sphars wrote: | Earlier today: https://news.ycombinator.com/item?id=33149796 | louissan wrote: | utterly useless hence absolutely indispensable. <3 | jheriko wrote: | reminds me of doing this in excel in 1998 | | ... although i did a wireframe with bresenham, and struggled to | exceed 15fps ___________________________________________________________________ (page generated 2022-10-10 23:00 UTC)