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Stable Video Diffusion

stability.ai

161–170 of 316 posts

Re: Stable Video Diffusion

#162

A seemingly off topic question, but with enough compute and optimization, could you eventually simulate “reality”? Like, at this point, what are the technical counters to the assertion that our world is a simulation?

Actually it was already done by sentdex with GAN Theft Auto:

https://youtu.be/udPY5rQVoW0

To an extent...

PS: Video is 2 years old, but still really impressive.

Re: Stable Video Diffusion

#164
post #155
post #104

Earlier quoted context omitted.

> you'll describe something and you'll get a full 3D scene, with 3D models, source of lights set up, etc. I'm always confused why I don't hear more about projects going in this direction. Controlnets are great, but there's still quite a lot of hallucination and other tiny mistakes that a skilled human would never make.

There's a lot of issues with it, but perhaps the biggest is that there aren't just troves of easily scrapable and digestible 3D models lying around on the internet to train on top of like we have with text, images, and video. Almost all of the generative 3D models you see are actually generative image models that essentially (very crude simplification) perform something like photogrammetry to generate a 3D model - 'd…

If reinforcement learning were farther along, you could have it learn to reproduce scenes as 3D models. Each episode's task is to mimic an image, each step is a command mutating the scene (adding a polygon, or rotating the camera, etc.), and the reward signal is image similarity. You can even start by training it with synthetic data: generate small random scenes and make them increasingly sophisticated, then later switch over to trying to mimic images.

You wouldn't need any models to learn from. But my intuition is that RL is still quite weak, and that the model would flounder after learning to mimic background color and placing a few spheres.

Re: Stable Video Diffusion

#165
post #101
post #69

Earlier quoted context omitted.

Are you working on all that?

Probably not. But there does seem to be a clear path to it. The main issue is going to be having the right dataset. You basically need to record user actions in something like blender (ie: moving a model of a bike to the left of a scene), match it to a text description of the action (ie; "move bike to the left") and match those to before/after snapshots of the resulting file format. You need a whole metric fuckton of…

The hard part of AGI is the self-training and few examples. Your parents didn't attach strings to your body and puppeteer you through a few hundred thousand games of baseball. And the humans that invented baseball had zero training data to go on.

Re: Stable Video Diffusion

#166
post #155

Earlier quoted context omitted.

There's a lot of issues with it, but perhaps the biggest is that there aren't just troves of easily scrapable and digestible 3D models lying around on the internet to train on top of like we have with text, images, and video. Almost all of the generative 3D models you see are actually generative image models that essentially (very crude simplification) perform something like photogrammetry to generate a 3D model - 'd…

If reinforcement learning were farther along, you could have it learn to reproduce scenes as 3D models. Each episode's task is to mimic an image, each step is a command mutating the scene (adding a polygon, or rotating the camera, etc.), and the reward signal is image similarity. You can even start by training it with synthetic data: generate small random scenes and make them increasingly sophisticated, then later sw…

Deepmind tried something similar in 2018 https://deepmind.google/discover/blog/learning-to-write-prog...

Re: Stable Video Diffusion

#167

In the video towards the bottom of the page, there are two birds (blue jays), but in the background there are two identical buildings (which look a lot like the CN Tower). CN Tower is the main landmark of Toronto, whose baseball team happens to be the Blue Jays. It's located near the main sportsball stadium downtown. I vaguely understand how text-to-image works, and so it makes sense that the vector space for "blue j…

> sportsball This is not the flex you think it is. You don't have to like sports, but snarking on people who do doesn't make you intellectual, it just makes you come across as a douchebag, no different than a sports fan making fun of "D&D nerds" or something.

[deleted]

Re: Stable Video Diffusion

#168

In the video towards the bottom of the page, there are two birds (blue jays), but in the background there are two identical buildings (which look a lot like the CN Tower). CN Tower is the main landmark of Toronto, whose baseball team happens to be the Blue Jays. It's located near the main sportsball stadium downtown. I vaguely understand how text-to-image works, and so it makes sense that the vector space for "blue j…

[dead]

Re: Stable Video Diffusion

#169
post #57

Earlier quoted context omitted.

I don’t spend a lot of time keeping up with the space, but I could have sworn I’ve seen a demo that allowed you to iterate in the way you’re suggesting. Maybe someone else can link it.

My guess is you're thinking of InstructPix2Pix[1], with prompts like "make the sky green" or "replace the fruits with cake" [1] https://github.com/timothybrooks/instruct-pix2pix

This is exactly it!

Re: Stable Video Diffusion

#170

In the video towards the bottom of the page, there are two birds (blue jays), but in the background there are two identical buildings (which look a lot like the CN Tower). CN Tower is the main landmark of Toronto, whose baseball team happens to be the Blue Jays. It's located near the main sportsball stadium downtown. I vaguely understand how text-to-image works, and so it makes sense that the vector space for "blue j…

> Has anyone come across a solution where model can iterate (eg, with prompts like "move the bicycle to the left side of the photo")? It feels like we're close. I feel like we're close too, but for another reason. For although I love SD and these video examples are great... It's a flawed method: they never get lighting correctly and there are many incoherent things just about everywhere. Any 3D artist or photographer…

Excellent point.

Perhaps a more computationally expensive but better looking method will be to pull all objects in the scene from a 3D model library, then programmatically set the scene and render it.

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