# Basic Perspective sketching and Glass Bottle on Newsprint Industrial/Product Design Part 1

my name is Eric Strebel welcome to

another video of mine about industrial design I want to show you a little bit

of basic perspective drawing techniques we’re gonna start out first with one

point perspective one point perspective means we’ve got one perspective point

but all the vanishing lines go to see if our horizon line drawn in the middle of

the page and then all the lines that go from those boxes in the front they all

go to the vanishing point and the middle of the page that I’ve selected here all

the other lines are either horizontal or vertical all the vertical lines are

parallel to each other and all the horizontal lines are horizontal of each

other the only lines that goes somewhere else

other than a horizontal or vertical position by the ones that recede in

space to that vanishing point the two point perspective again I draw horizon

line and in this case I draw two vanishing points one on the right and

one on the left so all my lines that recede off into space

go either to the right or the left vanished

the other lines that I’m drawing here are verticals they are all parallel to

each other since we only have two points in perspective from which the lines can

receive you thus the verticals are parallel so whether the object is

floating above you in space or anchored firmly on the ground as the first object

that I drew the other lines proceeded in space and the verticals stay vertical

and parallel to each other I’m just drawing another example because this one

crosses over the horizon line but the vanishing points remain the same again

the vertical lines are vertical for all the objects now I’m dividing this box in

half with an X across the points and a line that bisects the point where those

two lines meet and then drawing a line from the bottom through that point where

it intersects the side of the cube to draw where the next cube is in

perspective I’ve even drawn in a little human there to show scale the last type

of perspective that I want to focus on and the main type of perspective that I

use when I’m drawing or sketching is three-point perspective so as we started

out with one point to point and progress on to three point you guessed it there’s

a third vanishing point in this case the third vanishing point is off the page

it’s basically inside my belly button or behind me you can see those lines that

I’ve drawn clearly converge to some sort of vanishing point

that’s not drawn on the page it’s well below the page so in this case we’ve got

the standard two vanishing points that we had on the right and the left that

allow the lines that converge to that point and we have a third one that’s not

drawn on the page because it would just be too exaggerated too much of a sort of

a fisheye look would be achieved and it would you wouldn’t get a realistic image

of something you were sketching out it would just be too warped or too skewed

so again here I’m drawing floating brick one and two other ones

that are clearly anchored on the page there’s a couple of rules in three-point

perspective that allow us to do some interesting things let’s say you want to

have two objects that are laying on the same surface or the same table but they

have different orientations to each other how can we apply that inside the

three-point perspective system but we still have a vanishing point and some

points on the right and the left as we add another object and it has a

different orientation than the first object we select a different vanishing

point so in this case this other vanishing point still lies on the same

horizon as the first object does this is key to allowing the object to be viewed

as lying on the same table or the same plane the second

vanishing point for that second object is located somewhere off the page my

lines converge somewhere off the page but still it would be on that horizon

line somewhere to the right so as I flesh out these two squares you can see

they clearly have a sense that they are laying on the same table or laying or

you know occupying the same space or plane it’s believable that they are

lying next to each other just randomly laying there I add a little bit of

shadow to help define the object now I’m gonna do a quick sketch that shows the

wrong thing to do and how you could easily make a mistake

the first vanishing point is drawn off the page here to the right somewhere the

second one off to the left somewhere you can see I’m showing how the lines

converge somewhere to a vanishing point you can see this next object I’m drawing

the vanishing point would be way above the horizon it would be like the object

is tipped up in space clearly does not look like it’s laying down on the table

next to the object on the right I quickly change this by making the

vanishing point on the right for this object more closely match the object on

the right so the vanishing point looks like it’s somewhere on that horizon so

much more believable I just want to quickly summarize when I sketch all my

vanishing points are somewhere off the page you can’t see the horizon line and

you can’t see the vanishing point but I know that they’re there and all those

lines converge to make a nice simple perspective box that’s believable that

allows the user to understand that there’s an object in front of them

represented in drawing of a 3d object now let’s take what we’ve learned and

apply this to something a little bit more real an actual product in this case

I’m going to draw a simple glass bottle I’m drawing some verticals they converge

at the bottom you can see that vanishing point is somewhere through my body

through my bellybutton the right and the left vanishing point is off the page I

have drawn in the horizon line as reference I’ve created this simple box

that this bottle will live inside of I create the box to help me orientate the

object in space here I draw the bottom of the bottle

it’s a cylindrical bottle I’ve drawn in a simple ellipse that touches the four

sides of the square at the bottom and at the top the short axis of the ellipse

heads towards the perspective vanishing point at the bottom of the page or

somewhere behind me by drawing a series of other ellipses freehand to sort of

show the section lines of the bottle I’ve drawn a cap on the bottle at the

top that you can kind of see to make the object a little bit more realistic and

so with some very simple lines I’m able to draw an object inside of a box

quickly and keys here I’m just showing how ellipses work

and how they correlate to the vanishing points off in space the short axis of

the ellipse always goes to one of the vanishing points so here I’m just

marking out how I divide the surface of that square into quarters and then the

points where those segments intersect the side of the box is where the ellipse

touches that’s how you can easily rough in an ellipse and I just show the short

axis of the ellipse how it goes off to the left vanishing point there for the

right wheel and then the wheel on the left would go

off to the vanishing point on the light so this is a quick demo of perspective

and how you can apply it to some basic design sketching if you like the music in this video head

on over to Mike’s website hunched bunny comm give him a shout-out let him know

that you like it don’t forget to subscribe to my youtube page you can

also follow me on Twitter and Facebook thanks

rock on

New perspective sketching video is up, demo that I did for my students last week. Enjoy

this helped me a lot, thank you!

You're my man. I've been struggling with where should the horizon line be when I want to draw two object with different orientation and different vertical positions. Thank you sir =)

Fantastic video with a perfect song! Give us more 🙂 +1sub Thanks!