Wikipedia:Reference desk/Archives/Computing/2020 October 2

= October 2 =

Windows registry messed up
Please help me I messed up the search bar options in regedit, now everytime I open the start up menu it pops up and can't be closed, I need help to to reset it or fix it, without formatting or backing up the desktop I would appreciate every possible help from you all. — Preceding unsigned comment added by Baggerium (talk • contribs) 13:57, 2 October 2020 (UTC)
 * , "without backing up the desktop"? Hopefully you did make a backup before making any changes. The first thing I would suggest is to attempt a System Restore. Hopefully you have a recent restore point to use. Elizium23 (talk) 15:07, 2 October 2020 (UTC)


 * This is why it's important to always back up registry before tinkering with it. I also suggest trying System Restore as the first resort. System Restore should be backing up the registry.
 * If that doesn't work, try to describe exactly which changes you made. Which Windows version are you using? Did you import a *.reg file? Try to remember which keys/values you changed. Reconstructing the default contents of a registry key is not impossible, but it's important to know which key(s) were edited. 93.142.81.245 (talk) 20:23, 2 October 2020 (UTC)


 * , I tried to do a System Restore and it works thx for the help. 93.142.81.245 (talk) 20:23, 2 October 2020 (UTC)

3D rendering for dummies
Is there a website or book that has a complete description of doing 3D software rendering? By complete I mean doing the math of perspective projections, no Vector.Rotate copouts like here for example. I'd like to play a little with some non-"3D Euclidean" spaces but I've never programmed anything like that so I'd prefer to start by modifying a working 3D Euclidean example. I'd be fine with something that just draws wireframes, no need for textures. 93.142.81.245 (talk) 20:49, 2 October 2020 (UTC)


 * Perhaps Ray Tracing in one Weekend will be what you're looking for. -- Finlay McWalter··–·Talk 21:04, 2 October 2020 (UTC)


 * The bible for 3D graphics when I was working in the field was Newman and Sproull's Principles of Interactive Computer Graphics. According to our those articles, that book has been superseded by Foley and van Dam's Computer Graphics: Principles and Practice.  Rojomoke (talk) 05:08, 4 October 2020 (UTC)