Live Lecture Chat – January 25, 2021
10:09:18 From Jacob Eckroth(He/him/his) to Everyone : I put differentiability because I never heard the word coherency before. But it turns out that differentiability implies continuity, and not the other way around 🙁
10:10:47 From James, April to Everyone : I made the same mistake too 🙁
10:11:21 From Jacob Eckroth(He/him/his) to Everyone : I know “continuity” is in the noise notes, but I don’t know if coherency was
10:12:08 From Koning, Jonathan Scott to Everyone : ctrl+f can’t find “coherency” 10:12:46 From Jacob Eckroth(He/him/his) to Everyone : sounds good
10:13:12 From Borkar, Rohan to Everyone : he mentioned coherency verbally in the lecture, dunno what the policy for that is
You are absolutely right. I blew it by not mentioning coherency in the notes.
Each quiz question is worth 1 of the total 1130 points. If we get to the end of the quarter and you find yourself within 1 point of the next higher letter grade, email me and remind me of this. I’m really sorry.
11:01:40 From Raymon, Nathaniel A to Everyone : you mentioned ray-tracing, but what screen-space reflections?
I know of them, but have never tried implementing them. As I understand them, they are really useful for reflections of floor “mirrors” such as puddles of water. They involve tracing a ray from the eye to a fragment in the “puddle”, bouncing it, and then marching that ray and seeing what it hits in the z-buffer so it can eventually use the color of what was hit as the color to see in the “puddle”. For this specific type of reflection, I think it does better than cube-mapping, but it is slower to compute. One big advantage of it, though, is that the spatial relationships are not baked into an image and so SSR can handle dynamic scenes better. That’s all I know.
11:09:55 From Adams, Daniel to Everyone : Sly Cooper 3 had it? [Red-Cyan stereoviewing]
11:10:34 From Adams, Daniel to Everyone : https://www.slycoopernet.com/3d- glasses.html
Cool! This must have been a lot of fun.
11:12:44 From Jiroux, Kira Lynn to Everyone : Wish I had a pair of those sly cooper glasses.
They look to be normal Red-Cyan glasses, or are you referring to cool stuff surrounding the lenses? 🙂
11:25:21 From Arman H. to Everyone : I bet this is expensive? [The 20’-high, 270° Mandalorian sound stage screen]
Probably a couple $M, with graphics hardware. Just a guess.
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11:34:02 From Bailey, Mike to Everyone : The Mandalorian CS 450/550 discussion: http://cs.oregonstate.edu/~mjb/cs550/LiveLectures/mandalorian.pdf
If you are a huge Mandalorian fan, then you especially want to read the CGW article linked from here.
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