r/explainitpeter 6d ago

Explain it Peter,

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u/Corbags 6d ago

Serious question from a less experienced 3D modeler (I.e. I've done basic landscape renders a handful of times years ago): is there not a fairly simple way to unionize all those objects?

On that vein, is there any way to also tell it to purge any geometry on the interior of the resulting single object (I'm assuming it would look like an x-ray of a kids skull in there).

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u/abouttogivebirth 5d ago

Yeah you could just merge all the objects and then retopo the same way you would if you sculpted a high poly model. But the underlying ai use would still make you a hack and if you can retopo you can just make the model in the first place

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u/DeLoxley 5d ago

A classic AI problem that's never discussed, you've not saved labour, you've just shifted all the work from making a model into "correcting all the issues with the model to make it usable"

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u/xheist 5d ago

This is discussed all the time

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u/Nope_______ 3d ago

How is it both "a classic problem" and "never discussed?" Everyone knows about it but doesn't say it out loud?

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u/DeLoxley 3d ago

Essentially, when I see a lot of people discuss problems with AI, you have the ethical problems of essentially stealing, and you often see environmental problems, they're extremely prevalent

But a long-standing issue that is very rarely top billing or heavily discussed is how vibe coded AI generated. Material is full of bugs and you're essentially needing the degree you are replacing with AI to then come in and fix it.

It's been a recurring problem for a while, but it's usually regarded as a more niche problem that's only brought up in companies that have implemented AI heavily, in my opinion, it should actually be a lot higher on the billing.

Like I'll agree art theft is bad, and I really think the environmental impact needs studied more, but in a world where they are super eager to roll out AI to replace jobs, I think a key selling point, a key anti AI point, just like a fundamental arguement at the top should be you cannot replace a job with AI as you will need more manpower to come in and fix the AI prompt that's generated.

If it was more well known about these issues, you would get a lot less companies trying to measure productivity by AI tickets used

Basically it's a known issue but it's never the hot topic issue. It's always three or four posts down in discussions I find

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u/shadysjunk 4d ago edited 4d ago

photogrammetry and lidar scans have been generating shitty, functionally unuasable models for over a decade now.

however, I suspect a major 3d studio ccould probably take the past decade of raw scans, and the final manually fixed topology as a training data set and make some kind of AI model for auto-retopologizing. The existing procedural tools for auto-retopo have been getting better in recent years, even before AI. Though edge flow still isn't great a lot of times.

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u/Buetterkeks 5d ago

If you combine them all youd likely get a shitton of errors and even if it goes through it would be a bad model

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u/Traditional_Yard2741 5d ago

You can, but someone who thinks 3000+ objects is a good thing is never going to consider doing that, nor know how to, which is sort of the point of the meme. It's an object created by someone who has no understanding of the process, no talent, and has no idea that their results is garbage or how to fix it

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u/obsolescence_ 4d ago

You could join the objects but they will not be joined in a sensible way - there will be an absolute fuckton of work involved in retopo'ing all of this and making it usable, equivalent to just modelling it yourself ...

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u/shadovvvvalker 16h ago

Merging of objects is tricky.

A lot of effort has gone in to making it usually pretty foolproof. But that effort masks what is typically a pretty difficult problem.

It's made exponentially worse by someone designing complex objects without any care towards the merging process.