3 ms·

> At 48Hz, you’re going to pull out more details at 48Hz from the scene than at 24Hz, both in terms of motion and spatial detail. It’s going to be more than 2x

> At 48Hz, you’re going to pull out more details at 48Hz from the scene than at 24Hz, both in terms of motion and spatial detail. It’s going to be more than 2x the information than you’d expect just from doubling the spatial frequency, because you’re also going to get motion-information integrated into the signal alongside the spatial information. I had a conversation with a friend at Pixar about exactly this topic. The issue goes beyond just pulling more spacial information out of a shorter timeframe, it's also that all the current techniques for filmmaking assume 24fps. Everything has a budget of time and money, and when you say, make 1000 extra costumes for a shot, you cut corners in certain ways based on your training as a costume designer. Your training is based on trade techniques, which are based on the assumption that the director of photography (DOP) and director are viewing the work at 24fps with a certain amount of spacial detail. Doubling the frame rate means some of those techniques need to be more detailed, whereas others might be completely useless. Given everything that goes into a shot (hair/makeup, set design, lighting, costume design, props, pyrotechnics, etc), it's unlikely everyone working on a high-fps film is going to be aware of exactly which techniques do and do not work. As a result, you get lots of subtle flaws exposed that don't work with twice the detail. The sum of these flaws contribute heavily to making the shot look 'videoish'.

cpeterso 12y ago
Did your friend say what frame rate Pixar uses for its animated films?
- stephenboyd 12y ago
  Last year, I was told by one of the technical managers for animation at Pixar that they're all in 24 fps. They've used all the increased processing power since their founding in the 90's to increase detail, so the result is that the time it takes to render each frame has barely changed since Toy Story. Each frame of Monsters University took an average of 29 hours to render. This article has some good info: http://venturebeat.com/2013/04/24/the-making-of-pixars-latest-technological-marvel-monsters-university/ http://venturebeat.com/2013/04/24/the-making-of-pixars-lates... They seem to choose being film-like over being realistic when they have a choice. In one of their most recent short films, they actually lowered the framerate for a slow-motion effect to simulate a classic film technique.
  - KayEss 12y ago
    > Monsters University took an average of 29 hours to render Wow, when I was doing CGI work in the mid-90s our budget was generally 20 minutes per frame. The highest quality work we did was around 1 hour per frame, and this was for TV adverts and idents -- still, we didn't have Pixar's budgets to play with.

cpeterso 12y ago

Did your friend say what frame rate Pixar uses for its animated films?

stephenboyd 12y ago
Last year, I was told by one of the technical managers for animation at Pixar that they're all in 24 fps. They've used all the increased processing power since their founding in the 90's to increase detail, so the result is that the time it takes to render each frame has barely changed since Toy Story. Each frame of Monsters University took an average of 29 hours to render. This article has some good info: http://venturebeat.com/2013/04/24/the-making-of-pixars-latest-technological-marvel-monsters-university/ http://venturebeat.com/2013/04/24/the-making-of-pixars-lates... They seem to choose being film-like over being realistic when they have a choice. In one of their most recent short films, they actually lowered the framerate for a slow-motion effect to simulate a classic film technique.
- KayEss 12y ago
  > Monsters University took an average of 29 hours to render Wow, when I was doing CGI work in the mid-90s our budget was generally 20 minutes per frame. The highest quality work we did was around 1 hour per frame, and this was for TV adverts and idents -- still, we didn't have Pixar's budgets to play with.