Talk:Phong shading
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This article really needs some Wikipedia:TeX markup added. -- Karada 22:23, 13 Oct 2003 (UTC)
And a little bit about it's inventor, Wu Tong Phong.
Also, it describes Phong shading without reference to simpler shading algorithms. IIRC, Phong shading was a very simple (although computationally expensive) extension of Gouraud shading, which in turn is only an enhancement of flat shading. It's been ages since I took that CG class though so I'll leave it to someone else. -- Kimiko 14:15, 2 Mar 2004 (UTC)
It would be nice if someone had a picture comparison of Phong shading versus Gouraud shading, as there is a noticible difference --Jim Tzenes 00:03, 11 November 2005 (UTC)
- The picture provided does not show accurately the difference between gouraud and phong shading; the difference has nothing to do with the amount of vertices and/or whether there is any interpolation between the vertices. The only difference is that gouraud shading appears 'flat' (like very short fur) and phong appears 'plastic'. A new picture would be nice. —Preceding unsigned comment added by 145.99.147.66 (talk) 21:17, 28 October 2007 (UTC)
I don't think there is the need to merge the two articles. Phong shading is based on Phong reflection model, but they aren't strictly related. I mean, Phong reflection model is an equation to calculate the intensity of light in a known point of a known surface and in a know point of view, shading is mostly related to the selection of that point of the surface. For example, flat shading calculates Phong's model just once, and applies the value to the whole triangle. So, there are shading algorithms that are based on Phong's reflection model but aren't related to Phong shading. Another example is Gouraud shading. I have an image of the same object shaded in Gouraud and Phong, I'll scan it when I can. -Guga, Italy- 82.58.198.241 18:09, 12 January 2006 (UTC)
I don't agree with the Merge suggestion, because although they both have the name Phong in their name, they are completely different things. One is a shading model, the other is an illumination model. Matt 22:31, 16 January 2006 (UTC)
Why would wikipedia want to contribute to the confusion of two different things with the same name by merging them under the same article. I disagree with the Merge suggestion. -Ieth, Finland- ieth 13:02, 3 May 2006 (UTC)
[edit] Separate pages then
Since we decided to keep them separate, and the attempt at merging was reverted, let's do a good job of it. I've made a start at integrating the two articles better, with sensible cross-referencing statements. And I've corrected the writeup on how Phong compares to Gouraud, which was totally wrong. I copied some, but not all, of the content from this article to the other. I did some work on Phong's bio, too. Please comment, or just chip in and do what you think will help. I think we should fix the Blinn-Phong article to fit this scheme, too. Dicklyon 04:44, 30 May 2006 (UTC)
[edit] Merge
New discussion for merge at Talk:Phong reflection model#Merge —Preceding unsigned comment added by Rainwarrior (talk • contribs) 03:41, 1 September 2007 (UTC)
- The discussion there found no dissent this time, so the merge was done. Dicklyon (talk) 22:08, 16 December 2007 (UTC)
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- Ah, thanks. I forgot to mention it here too. - Rainwarrior (talk) 00:00, 17 December 2007 (UTC)
