Talk:Ray casting

message: This page doesn't describe ray casting - it describes an application of ray casting used in old video games (DOOM specifically).  Should be rewritten to describe ray casting in general.
:There's already a good article on ray casting in general, so I've tried to alter this article to reflect the situations where the term ray casting is more common. I hope I've made a significant advancement. ThomasHarte 21:04, 12 August 2005 (UTC)
thread_title:  Ray casting in DOOM 

message: At first, I was going to edit this because it was non-neutral, but, considering it......
*was non-notable
*violates copyright (I believe Wolfenstein's engine is free for use, its graphics aren't)
*is a thinly veiled advertisement for a "consolidation loan"
*is probably a vanity edit
.....I removed it altogether. The sections above it talk about major engines' use of raycasting. This, however, was just some dude's little flash project. It doesn't follow from the other sections, it's not useful, it's not even interesting: There are a million raycasting engines, this makes it a million and one. Now that Flash 8 allows pixel-level manipulation of images, it's practically trivial task, no more difficult than any other implementation and therefore not more significant than any other: congratulations on your mediocrity.
With the above reasons, then, it needs to go. so it did. TheBilly 13:19, 23 April 2006 (UTC)
replies: text: While I agree with the removal, I think the snark is completely unnecessary.... 86.130.110.101 (talk) 22:55, 2 September 2015 (UTC)
thread_title:  Flash raycasting 

message: I'm certain that I first used the term "ray casting" in my published paper:
 Roth, S. D. "Ray Casting for Modeling Solids." Computer Graphics and Image Processing, 18 (February 1982), 109-144.
"Computer Graphics" by Foley, et al, references my paper. The paper describes the use of rays to model solids and to generate images of solid compositions using shadows, transparancy, etc. The paper includes numerous computer-generated examples.
I guess it would ve vain of me to edit aritcle.
-- Scott Roth
==== Origin of the algorithms ====
Not discussing origins of "term" ray casting, just the note that algorithms of ray casting were probably first described in: APPEL, A. Some techniques for shading machine renderings of solids. Proc. AFIPS 1968 Spring Joint Comput. Conf., Vol. 32, MDI Publications, Wayne, Pa., pp. 37-49, at least it looks like according to http://en.wikipedia.org/wiki/Rendering_(computer_graphics)
-- Jan Pečiva  —Preceding unsigned comment added by Pcjohn (talk • contribs) 09:22, 17 February 2010 (UTC)
thread_title:  Origin of term "ray casting" 

message: Not discussing origins of "term" ray casting, just the note that algorithms of ray casting were probably first described in: APPEL, A. Some techniques for shading machine renderings of solids. Proc. AFIPS 1968 Spring Joint Comput. Conf., Vol. 32, MDI Publications, Wayne, Pa., pp. 37-49, at least it looks like according to http://en.wikipedia.org/wiki/Rendering_(computer_graphics)
-- Jan Pečiva  —Preceding unsigned comment added by Pcjohn (talk • contribs) 09:22, 17 February 2010 (UTC)
thread_title:  Origin of the algorithms 

message: The section on how duke nukem 3D is made is wrong, commented by the engine devloper: http://jonof.edgenetwork.org/forum/viewtopic.php?p=7012#7012
I propose that the section be either removed or corrected. I'll remove it for now.
-I corrected it --24.56.241.134 21:21, 6 March 2007 (UTC)
thread_title:  Duke3D 

message: So Doom has a BSP that is used to reduce the number of walls available for raycasting and speed up the process. According to the article, "This has the advantage of replacing thousands of expensive divide operations with trigonometric multiplies." But what is a trigonometric multiply?  —Preceding unsigned comment added by 136.176.8.18 (talk) 15:10, 4 September 2007 (UTC)
thread_title:  Doom uses "trigonometric multiply" instead of division?? 

message: Maybe that should be mentioned, as lots of shooters have been made since Wolfenstein...  —Preceding unsigned comment added by 207.159.180.169 (talk) 13:58, 26 April 2011 (UTC)
thread_title:  Don't most hitscan implimentations use this? 

message: The "Concept" section mentions both ray tracing and ray casting but isn't very clear in its explanations of the two or how they differ  — Preceding unsigned comment added by 184.16.136.97 (talk) 18:27, 12 May 2018 (UTC)
thread_title:  Fix Concept section 

message: just a reminder,that we've technically gone from THIS to S&Box or Half-life: Alyx Aperksoriginal (talk) 15:41, 9 May 2023 (UTC)
thread_title:  Brain explosion time