welcome back to PJ Chen Design Channel. today we are going to look into this
really organic and beautiful form inspired by shark skin. Are you ready
let's get started!
I was doing my research and happened to
find this beautiful texture from shark skin under the microscope. if you're
interesting you can looking into more of the picture there. so today I would like
to show you my way to mimic this texture in the Rhino. Let's starting with the
sphere and get a general form. we're gonna coming over here, and for whatever
size that you are going to design and I also like to make them a little
bit thinner by one D scale, so it's not like over puffy there. so let's get a
general form first. we are going to rebuild this guy, and get a lot more points
there. currently we have eight and the five. we evenly out. it's going to
look like that. so I need a lot more point on that we're going to create
about sixteen over there on the U and eight on the V and click OK.
let me also bring in the picture that I found online and just a reference over
here. we like to get the shape like this. the first one on the left here, so what I
like to do is to turn on my control point, and it's kind of pulling this guy
up and maybe scale it down a little bit. at the same time moving it down carry
down with the comball. so we want to get a basic shape over there. I may want to
bring this up a little bit, and pull out. so you kind of play with it and get the
shape that you like. maybe a little bit more pointed. alright so another thing
that we are looking at this picture also the middle is kind of bumping up. so I
would like to do is select a point. any point right in the middle
on the top. instead of select all of them, I would like to do it's coming into the
selection and then you have this select point. you can tuck it anywhere you like
or just let it flow over there, and I like this one to be there so it's easier
for me to use it every time. I don't have to kind of moving it around.
so what I'd like to do is I like to select the V, and you can see it's like
all the way on the top from the beginning to the end. and be really
careful you probably don't want to select it at that point. so we are going
to deselect the point at the very end on both side. otherwise you'll get something
super pointed and then we are going to using the gumball to pull up. then you
will get the shape like this. notice that this is a little bit too sharp over
there. I actually don't want them to be coming out exactly the same distance. so
let me go back one more step this time. we wanted to use the command by
comparison as you use MoveUVN. with this command it's going to give you a
box like this, and I'm just gonna tuck it somewhere here. so this is actually very
good control point editing option that you have here. you can move with U. as
you can see this is the way they move it or you can move it with a V, but I like
to do is moving both U and V at the same time. so I like to you move it like that
so notice that the way you move is more smoothly so you don't get that big bump
over there. so let me go back one more step. and I like to move it a
little bit more, you can kind of a movie a little bit and keep dragging and keep
dragging until you are satisfied with the shape. now you can also with
this one. let me move it back a little bit, so to find something it is smoother.
if you want this one coming up more, you can have this going up like this. okay so
now we have this one. let's look at the picture one more time, the picture right
here is showing it this is kind of a going in this way. it doesn't follow the
way that we have going this way on the shape. so if I wanted to select another
row for example. turn on a control point and select this one and use what we had
selecting with the V and try to pull up notice that it is going into this
direction, but it's actually straight down. so it's hard for us to do the
control point at this point. because it is the control points is following
the surface. so we need to have this bump. coming up right now the way that I will
suggest to do is using the Cage Edit with the Cage Edit, I'm going to select
this one and choosing the bounding box align to the world.
I like to have x asix lot more points for 16 and Y for the 8, and Z we can stay for 4. so
we'll get a box like this. now coming into the top view. I'm going to pick up a
straight line going roughly maybe like here. and also here the same time for
both right and the left. and I do not want to change anything at the back, so I'm
deselecting the bottom two, so this is what I select simply just gonna use the
Gumball to pull it up. okay so you can see that we get this as a straight line pull it
up instead of a follow of the curvature that we have over there. so now we have
this one, if they are too bumpy you can also scale down a
little bit to fit whatever shape that you have over there, and you can kind of
tweak it until that you find a final shape that you like
one more thing I like to do is I want to turn on a control point and notice that
this is some sort of a ream ish things there. so what I like to do is I want to
pick up maybe five or six from the right, and or maybe five or six point to
the left. and again I want to use selection for
selecting V over here so that will select the entire age around with all
the point, and again let's play with UVN to make them coming out a little bit
so then you will have a little rim and that's take a look on this render view
okay so you can keep tweaking and playing and and get the shape that close
to whatever you want. since this is a demo, I'm going to stop here, and for
you to play with it. the second thing we wanted to do is I want to creating a
surface. the surface is going to be like this, and for whatever size that is, and
then I'm going to rebuild the surface. Let's rebuild to U for 4, V for 4 and
then we got something like this. let's turn on a control point, and basically I
won those point go down, those two on the edge go up, this to going down and
this to going up. so now we will have a very interesting curved surface instead
of flat one. so I'm going to arrange the pattern on it so the way
that we are going to do is we're gonna create UV curve for this one. so this is
the area if this surface flatten out and that's area going to be so I'm going to
make this guy a little bit smaller because it's going to be the pattern and
I'm going to arrange over here. let's take a look on the top view. okay
so to make a multiple I'm going to use a linear array to array the
guy maybe ten. holding my shift coming over here. okay once I have that. I'm
going to making a copy just dragging my gumball, and two overlapping somewhere
about this one, and tap ALT key, so you can make a copy. I'm going to make
another copy just drag it up hit the ALT key and another copy drag it up hit the
ALT key. alright so this is the pattern I'm going to flow. I mean you can do
different kind of arrangement if you want to so we need to flow this pattern
back to the surface. I would like to do is to use this curve
and use the command surface from planar curve. alright and make sure that this is
where the the how high you want it to be. the position that you want it to be.
double make sure. Let's take a look on the render view, and see if that is the
pattern that we want okay so it looked nicer over there we're going to flow it
back by flow along surface, and we're gonna pick up all the object over here.
and we're gonna pick up one of the corner on the bottom right here, and then
the target will be the same corner right there. so let's take a look at if it
flowed nicely and look like it's in the right position. let's take a look on the
render view. alright so this is the way we creating the texture mimic the shark
skin under the microscope. More video that is member-only on my membership
program if you are interested, please join our membership, and I'll show you
more of my tricks and tips to do all kind of a 3d model with the Rhino 3d. I hope
you enjoyed this video please like and comment and let me know how you like it
thank you and I'll see you next!