【面白動画　Make 3D Models using ChatGPT】ChatGPTを使った3Dモデルの作成

the chat GPT AI chatbot is capable of
some really incredible things but did
you know it’s also capable of making 3D
models in this video I’m going to show
you how I use chat GPT to make a 3D
model and print it out
this isn’t really a video about how chat
GPT Works I’d suggest doing some reading
if you’re interested in the back end to
get started just go to openai.com and
click the try button next to chat GPT
once you’re signed up you should be
looking at this landing page where you
can enter your prompts usually chat GPT
is pretty quick with responses but
sometimes you’ll get error messages if
this happens just wait a minute or two
and try again
now that we’ve covered the basics let’s
talk about how you can make 3D models
using chat gbt what’s really interesting
is you have to be very specific in how
you ask chat gbt to make a 3D model so
here you can see I’ve asked chatgpt to
make a 3D model of a motorcycle and
instead of actually making a 3D model of
a motorcycle it’s telling me how I could
make a 3D model of a motorcycle by doing
things like using a reference photo and
paying attention to details it’s sort of
like the how to draw an owl meme it’s
not super helpful if you ask Chachi BT
to make something a little bit simpler
like a cube something really interesting
happens chat GPT will actually give you
step-by-step instructions for how to
make the model in a 3D modeling program
here chat gbt is walking me through step
by step how to make a Cuban blender and
if I follow these instructions they
actually work ironically the first step
is to delete the default Cube and then
immediately add a new one but sure
enough these steps work so following
along and going into object add mesh
Cube will create your Cube and then you
can go one step further and scale move
and rotate the cube and again chat GPT
has provided step-by-step instructions
for all of these manipulations
so this is great but it’s still not an
STL file and it’s still not a printable
mesh so let’s try that again here I’ve
asked chatgpt to use the STL file format
and describe the geometry of a cube with
a volume of one unit cubed I’m trying to
be very specific here and this sometimes
works sometimes chat GPT will describe
how it would do something instead of
actually doing it so here it’s telling
you how it would normally go about
making an STL file but it doesn’t
actually create an STL file here’s where
it gets interesting I’m going to start a
new chat and I’m going to use the same
prompt I’m not going to make any changes
I’m just going to run it again and this
time it actually worked instead of
describing what the STL file would look
like it describes the STL file exactly
so it’s actually showing the code that
comprises an STL file chat GPT is
generating each individual vertex three
per triangle as well as the normal which
is all the information contained in an
STL file this file is longer than the
typical output Allowed by chatgpt but I
found if you just type continue it will
pick up exactly where it left off and
it’ll finish your file when you see the
end solid line that’s how you know the
STL is finished generating chatgpt can’t
export files natively so what we’re
going to do is run through and copy each
piece of code and then paste it into vs
code so here we can see this is our STL
file these are both parts and We Know It
starts with solid and ends with n solid
so this is a working STL file or at
least it should be
dragging this file into meshmixer shows
that we have a solid cube kind of we
have six faces but four of them have the
normals flipped this means the triangles
are facing the wrong direction you can
think of it sort of as the inside and
the outside of the mesh pretty simple
fix we’re just going to flip those
triangles and now we have a solid water
type mesh so let’s take a step back and
remember that we defined this Cube as
having a volume of one unit cubed this
means when we drag it into our slicer
program it throws an error because it
sees it as being imported in millimeters
and it knows one millimeter cubed is a
little on the small side so it’ll
automatically change it to inches you
can see that here in the size window and
you can see it’s been scaled to 25.4
millimeters or an inch this means we now
have a one inch cubed Cube pretty cool
stuff we can actually go ahead and slice
it and get a print preview to see what
that would look like if we printed it I
printed this out on my elegoo Neptune 3
Pro and sure enough about an hour after
I started it it was finished and so now
I’m holding a 3D printed Cube that was
modeled by AI pretty cool stuff right so
now that you know how to use it what are
you going to make with chat GPT