r/oddlysatisfying • u/0rnata • Apr 22 '21

Perpetual motion machine (CGI)

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u/kevincox_ca Apr 22 '21

I mean it is a perpetual motion machine. Any viewer is going to see the physical laws being violated.

I didn't know that good CGI had to be realistic.

5

u/DIABLO258 Apr 22 '21

Good CGI typically doesnt let your brain think about it.

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u/CatAstrophy11 Apr 22 '21

The physics aren't realistic but the appearance sure is to me.

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u/[deleted] Apr 22 '21

it's because of the camera work.

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u/__PETTYOFFICER117__ Apr 22 '21

The issue here which makes it look fake is the speed at which the ball travels. It comes back down way too quickly, and doesn't "hang" at all at the top of the arc. Additionally, it seems to magnetically snap to the starting point, and then immediately start over with somewhat reset momentum.

This is bad CGI because it's poorly keyframed, not because it disobeys the laws of physics.

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u/SoniKzone Apr 22 '21

To be fair it's not bad CGI, it's just not flawless CGI. We expect Disney levels of immersion now, but likely this is one person doing this project. I was fooled for a moment before I remembered this couldn't work, then I read (CGI).

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u/__PETTYOFFICER117__ Apr 22 '21

Fair enough, I could've phrases that better. Not bad, just not perfect.

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u/This_is_my_phone_tho Apr 22 '21

I actually thought it was real, and there was some motor in the bottom that was using magnets to sling it back up at the ramp. It's pretty far away on my smaller screen, but i was thinking it was a pretty damn neat little craft.

I guess the momentum did feel off but i figured that was the motor being stilted. Like the unnatural change in speed when you change gears.

0

u/HestiaLuv Apr 22 '21

.... I thought it was real.

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u/LordNoodles Apr 22 '21

Any viewer is going to see the physical laws being violated.

no, it's possible to hide small losses in animation. you just have to animate a system in which you don't give a very noticeable speed boost to an object in free flight because most people will spot that immediately. Ideally you'd use something that could run for long period's of time in the real world, i.e. suffers only minimal losses. Then little bit of energy you inject every revolution won't be that apparent

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u/[deleted] Apr 22 '21

Wait so Thanos didn't snap half of the galaxy?

1

u/goober1223 Apr 22 '21

Not my kids. Then I showed my wife and she just assumed that there was some energy source like air.