Talk:Screen Space Ambient Occlusion (SSAO)

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Revision as of 15:02, 11 January 2011 by Thelonesoldier (talk | contribs)
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View dependency

I don't think you understand my point about view dependency, so I'll try to explain it here. The physical location of the "shadows" created by SSAO depends on what angle the player is looking at the object from. So for example if you're looking at a chair that's close to a wall, the location of the shadow on the wall will physically change position when the player moves around. Additionally, the size and darkness of the shadow may change if the player moves closer to or further away from the chair. This is less noticable in high-quality SSAO implementations, but it still occurs. I'm not talking about the edges of the screen. Thelonesoldier 08:38, 11 January 2011 (UTC)

And that occurs with any screenspace effect. It has nothing to do with SSAO. The only SSAO related artifact is the edges of the screen not being shaded as they would toward the center. This occurs because we don't have extra depth information outside of the viewport.--1/4 Life 08:40, 11 January 2011 (UTC)
It is an aspect of view-dependency which you are ignoring. There's no reason not to mention it in the article. We shouldn't assume all readers have a comprehensive knowledge of screen space shaders. And again, the problem I'm describing does not only occur at the edges of the screen. EDIT: I would ask that you not resume frivolously reverting my edits. Thelonesoldier 08:43, 11 January 2011 (UTC)
Then add it in separate if you feel it's needed. It's not a problem with SSAO.--1/4 Life 08:44, 11 January 2011 (UTC)
I would also ask that you not resume frivolously reverting my edits.--1/4 Life 08:44, 11 January 2011 (UTC)
I haven't reverted any of your edits. It is a problem with SSAO. It's an aspect of view-dependency and it belongs in that sentence, not "separate". I also can't imagine what your problem is with describing what look SSAO strives to achieve; a half-sentence mentioning soft shadows will be suitable for readers unfamiliar with the specifics of global illumination and ambient lighting rendering. Thelonesoldier 08:52, 11 January 2011 (UTC)

Dudes, why do you both always act like little children to each other?
"my edit is better!", "no mine!", "stop reverting!", "mimimimi" ...
If he thinks it's important to mention the downsides of SSAO/screen space effects, why not?
Wikis are there to learn and if you delete information which could be useful, you clearly didn't understand the principle of a wiki. --Pfannkuchen 19:19, 11 January 2011 (UTC)

I've been saying that the whole time. Thelonesoldier 22:02, 11 January 2011 (UTC)