The Secrets of Photorealism

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Published 2022-10-28
Discover the science to making believable photorealism, and why Toy Story 4 gets everything right.

"The Secrets of Photorealism" by Andrew Price ‪@blenderguru‬
Blender Conference 2022

#BCON22 #b3d

All Comments (21)
  • He's got some great points, I think he's gonna be big in the Blender community someday.
  • @vins1769
    I like the part where guru said "it's blender time" and blended all the audience.
  • @TrentisN
    The motion blur checkbox is actually there if you just want Blender to crash when rendering.
  • Andrew quickly letting everyone know that he's excited about the laser pointer was the most Guru thing ever.
  • @stibbits7087
    19:25 The shutter value is the percentage of the frame duration that the shutter is open for. At 0.5 shutter value and 24 fps the exposure duration is 1/48th of a second. It's similar to the "shutter angle" for a motion picture camera, but expressed as 0-1 instead of an angle.
  • @yugi9710
    Damn Andrew is so happy; you can see it in his pocket.
  • @hanktremain
    That default 0.5 motion blur isn't "made up" at all - It is half the frame rate (also known as a 180degree shutter). A bit like the specular slider on the principled BSDF - you don't want to change this. I think Andrew is coming at this from a stills photography background, where adjusting shutter speed to account for light is acceptable in most cases - however this is not so for moving image. One of the most common mistakes a novice video creator makes is to shoot with a random shutter speed. You should always aim to shoot with a shutter speed half that of the frame rate you are shooting at if you want natural looking motion - Change the ISO, aperture and amount of light in your scene to compensate for exposure, not shutter speed when shooting motion.
  • Congrats to Mr Price for being so successful in the blender community
  • @im_Dafox
    That "lamp-face-focus" example is going to change my 3d renders understanding on its own. Thanks a lot for sharing this amazing talk :]
  • Andrew my man, you're absolutely a beacon of knowledge in the 3D world. Not enough thanks can be given to let you know how much good you've done. On another note : when wearing chinos that tight, absolutely empty your pockets.
  • @daveSoupy
    I was actively working on a project while watching this and those little things he said to do made a giant difference already
  • These are great points! I remember using the camera tricks majority of the time, but nothing can take away from the use of lighting to create cinematic scenes.
  • @roguehydra
    Of all of this, and I learned a lot from it, my absolute favorite part was the tiny little bit you spoke about Dune. I was GENUINELY wondering what they did to get that very natural motion blur. Good to know! Really appreciated that tiny little tidbit.
  • @IIIspirit
    The man that brought me over to Blender way back when, thanks again. 👍
  • Thank you so much, for those basics. You 'll make me dive into photorealism one of these days for sure, just as you did for our Blender immersion and our wish to teach it in school of architecture. Brilliant.
  • @qubafootbag
    Always pleasure to listen to Andrew's speeches, thank you for uploading
  • @ConradSly
    Was really nice to return to this subject! A few notes: there is a way to have multiple planes of focus in a real camera by using a split diopter, which some films have used to the same effect as in Toy Story 4, so even though it seems to go against practical real world situations with a real camera, it's actually a real effect. Metallic surfaces do have albedo, it's just that most of the time those albedo values are quite dark. Pure silver for example has a fairly bright albedo if you cross polarize all the reflections away. Anamorphic lens actually do the opposite of what he described, they capture twice the width in a compressed/squeezed format, and you stretch it back out/desqueeze it in post. The ovals are produced by cylindrical lens elements at the end of the chain of lens elements, as opposed to spherical elements in lenses with circular bokeh.
  • i came across this guy a couple of years ago duri ng my research and from him i have learned a lots and it is also exiting that he always have something to share. We appreciate this guy.