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Sora: Creating video from text

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Re: Sora: Creating video from text

#371

Post by viewtransform »

isthispermanent wrote: post #337
crazygringo wrote: post #190

This is insane. But I'm impressed most of all by the quality of motion . I've quite simply never seen convincing computer-generated motion before . Just look at the way the wooly mammoths connect with the ground, and their lumbering mass feels real. Motion-capture works fine because that's real motion, but every time people try to animate humans and animals, even in big-budget CGI movies, it's always ultimately obvio…

Pixar is computer generated motion, no?

Main Pixar characters are all computer animated by humans. Physics effects like water, hair, clothing, smoke and background crowds use computer physics simulation but there are handles allowing an animator to direct the motion as per the directors wishes.

Re: Sora: Creating video from text

#372

Post by mtlmtlmtlmtl »

a_wild_dandan wrote: post #129
Delumine wrote: post #56

This is insane. Even though there are open-source models, I think this is too dangerous to release to the public. If someone would've uploaded that Tokyo video to youtube, and told me it was a drone.. I would've believed them. All "proof" we have can be contested or fabricated.

This changes nothing about "proof" (i.e. "evidence", here). Authenticity is determined by trust in the source institution(s), independent verification, chains of evidence, etc. Belief is about people , not technology . Always was, always will be. Fraud is older than Photoshop, than the first impersonation, than perhaps civilization. The sky is not falling here. Always remember: fidelity and belief aren't synonyms.

Scale matters. This will allow unprecedented scale of producing fabricated video. You're right about evidence, but it doesn't need to hold up in court to do a lot of damage.

Re: Sora: Creating video from text

#373

Post by bottlepalm »

chasing wrote: post #24

Yeah, you just can't let all media, all the cost and hard work of millions of photographers, animators, filmmakers, etc be completely consumed and devalued by one company just because it's a very cool technical trick. The more powerful these services become the more obvious that will be. What OpenAI does is amazing, but they obviously cannot be allowed to capture the value of every piece of media ever created — it'll…

You can't regulate it because it will just be outsourced to another country.

Nope, we are headed towards deflation. Families that need only a single worker to support everyone, and even support extended family, and less time working overall.

Re: Sora: Creating video from text

#374

Post by Boss0565 »

superconduct123 wrote: post #284
kweingar wrote: post #206

Obviously incredibly cool, but it seems that people are incredibly overstating the applications of this. Realistically, how do you fit this into a movie, a TV show, or a game? You write a text prompt, get a scene, and then everything is gone—the characters, props, rooms, buildings, environments, etc. won’t carry over to the next prompt.

It doesn't need to replace the whole movie You could use it for stuff like wide shots, close ups, random CG shots, rapid cut shots, stuff where you just cut to it once and don't need multiple angles To me it seem most useful for advertising where a lot of times they only show something once, like a montage

I also see advertising (especially lower-budget productions, such as dropshipping or local TV commercials) being early adopters of this technology once businesses have access to this at an affordable price.

Re: Sora: Creating video from text

#376

Post by countmora »

> We’re also building tools to help detect misleading content such as a detection classifier that can tell when a video was generated by Sora.

I am curious of how optimised their approach is and what hardware you would need to analyse videos at reasonable speed.

Re: Sora: Creating video from text

#377

Post by internetter »

downWidOutaFite wrote: post #367
Imnimo wrote: post #49

https://openai.com/sora?video=big-sur In this video, there's extremely consistent geometry as the camera moves, but the texture of the trees/shrubs on the top of the cliff on the left seems to remain very flat, reminiscent of low-poly geometry in games. I wonder if this is an artifact of the way videos are generated. Is the model separating scene geometry from camera? Maybe some sort of video-NeRF or Gaussian Splatti…

Doesn't look flat to me. Edit: Here[0] I highlighted a groove in the bushes moving with perfect perspective [0] https://ibb.co/Y7WFW39

Look in the top left corner, on the plane

Re: Sora: Creating video from text

#378

Post by neutralx »

Has anyone else noticed the leg swap in Tokyo video at 0:14. I guess we are past uncanny, but I do wonder if these small artifacts will always be present in generated content.

Also begs the question, if more and more children are introduced to media from young age and they are fed more and more with generated content, will they be able to feel "uncanniness" or become completely blunt to it.

There's definitely interesting period ahead of us, not yet sure how to feel about it...

Re: Sora: Creating video from text

#379

Post by seydor »

sebastiennight wrote: post #363

I think the implications go much further than just the image/video considerations. This model shows a very good (albeit not perfect) understanding of the physics of objects and relationships between them. The announcement mentions this several times. The OpenAI blog post lists "Archeologists discover a generic plastic chair in the desert, excavating and dusting it with great care." as one of the "failed" cases. But t…

Facebook released something in that direction today https://ai.meta.com/blog/v-jepa-yann-lecun-ai-model-video-jo...
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