- What is Form in Art?
- Shape and Form in Art
- The Five Main Types of Lines in Art
- Exploring Shapes: An Important Element of Art
- The Five Basic Forms in Art
- Form Breakdowns
- Adding Depth to Create Form: A Brief Word on Light & Perspective
- Adding Depth with Light & Shadow: A Simple Demo
- Adding Depth with Space: Another Simple Demo
- Adding Depth with Perspective: Yet Another Simple Demo (last one, I promise!)
- Show Yourself Some Love! You Made it!
Thank you for visiting me at CecelyV.com! 😊
I appreciate the opportunity to share what I know with you and contribute to your art journey. Since you’re here it means you want to understand more about form, so let’s dig in.
Line, shape, silhouette, and form are just a few elements of The Fundamentals of Art. As visual artists, our goal is to tell a story through our work, so a firm understanding of how to use and express forms is essential. The use of form is primarily a tool of representational art. If you are leaving your message up to broad interpretation, you don’t really need to concern yourself with creating the illusion of three-dimensional form.
For visual storytelling our forms need to be on point so the story is felt and understood. Nearly all our sensory experiences connect us to forms and light, and heavily inform our understanding of the people and world around us. The ability to express these experiences visually is what helps us connect the stories in our art with our audience.
What is Form in Art?
Simply stated, form is anything whose physical nature includes length, width and depth. Everything we interact with and manipulate in the physical world has, or originates from, form. The clothes we wear, the food we eat, the vehicles and tech we operate, tools, nature, and more all have physical form.
Some of our sensory experiences, like smell and sound, are not visual things. We don’t “see” the way a pizza smells or the way a bell sounds. However, we can draw the source of these sounds and then use our understanding of expressing form to connect with our audience’s remembered experiences visually.
Shared sensory experiences connect us all. As artists, we can harness the power of our shared experiences to create even more powerful, meaningful, and inclusive connections. Lines, shapes, and silhouettes help us build and “sculpt” our forms visually, connecting us, through our work, to our audience. Of course, forms also need the application of light to complete the expression and illusion of depth, but let’s tackle one thing at a time. We must first construct Forms before lighting them.
Drawing Comparisons: How I Like to Explain the Elements of Art vs. YouTube or Other Websites You See
At this point, you may have noticed that I have a rather nuanced way of explaining things. That is not only genuinely a reflection of my personality but also intentional. In the searches I have done throughout the years, I have encountered a lot of frustration with surface-level information. A general, top-down overview may be enough to get started, but as we dive deeper into our craft, we need more.
Sometimes we need the nuances of our discipline to help us grow past the walls and challenges we encounter. Some of these reveal themselves to us in the doing, and that is awesome. Other times, we could use a little more help. Finding awesome-looking YouTube videos that explain nothing, while showing off nice painting skills with pleasant background music, has not been something I’ve ever found terribly helpful.
I don’t particularly appreciate putting in the time and effort to search for knowledge and come up short on details or come away with information I cannot use in my work. It feels like a waste of time, and who wants that? I like to have a window into the process to help me understand what I am seeing the artist do on screen. Understanding aids our practice and helps us build our own processes—which is one of the most challenging aspects of being an artist.
My goal here on my site is to share what I have learned with a good balance of the academic, the practical, the nuanced, and the fun. I want to share knowledge you can use.
Shape and Form in Art
To understand form, it’s important to grasp its building blocks: lines, shape, and silhouette.
Silhouettes are combined solid, monotone shapes (most often in black) whose edges match the outline (outside contour) of the form(s) they represent.
Shapes are simplified, flat versions of form that are created using lines. Shapes are created when lines connect to enclose space. Often the space contained within the line(s) is referred to as “positive” space, while the space outside the shape itself is called “negative” space. “Negative” space can also create shapes and interesting contours. These spaces are referred to as “negative” because they don’t contain form descriptors such as value, patterns, texture, etc.
Lines define the edges of shapes and silhouettes, as well as the contours and edges of forms. Contour and cross contour lines are useful for giving additional information about the surface volume and plane changes, which helps guide us when adding values. Variations of line type and line quality can be used to describe texture and weight. Lines are extraordinarily versatile vehicles for communication across art, language, mathematics, and science.
For our purposes, a line is generally defined as a discernible, one-dimensional path created by a point moving in space. Lines vary in length, width, direction, and texture (smooth, rough, broken, dotted, etc.). They can be solid and visible or implied and invisible. If you can “see” or discern a connection/progression between points or objects, then a line is present.
The Five Main Types of Lines in Art
There are five main types of lines in art:
- Horizontal Lines
- Vertical Lines
- Diagonal Lines
- Curved Lines
- Zigzag Lines
A line’s directionality affects the “feel,” impact, and energy of a composition, as well as the language of the shapes you use. Lines are a powerful tool for guiding our viewer’s eye through the story of our image and infusing a sense of movement within our work. I spoke of the versatility of lines earlier, and there are tons of different ways to draw lines and combine line types. It is a fun doodle adventure to see how many combinations you can come up with. Here are a few of my own continuous line doodles:
In these examples, I use a continuous two-dimensional line to see how far I can push the organic and geometric possibilities of a line. I used black on a toned background and focused on creating as many variations of line direction and weight as I could think of at the moment.
As you can see, the variety of the directionality and weight of the lines makes the “feeling” of the lines change: Some feel heavier or darker than others, and some feel more dynamic and energetic. Line quality affects mood and form in art.
Drawing with constant direction changes, as in the zigzagging and wavy lines you can see here, makes these patterns and open shapes feel more energetic and chaotic, or like they are “buzzing.”
By combining the five main types of lines in continuous line drawing, you will see how far you can use lines to explore two-dimensional geometric and organic shapes and patterns in your work. Practice like this also gives you a sense of the kind of shape language and line quality you like, which will inform how you create forms and objects in your drawings.
For another viewpoint on Line in art, here is a video from KQED Art School:
I know some of you may be thinking this all sounds terribly remedial and obvious, but please bear with me. I am a thorough person by nature, and it’s important to me that I not make assumptions about anyone’s level of knowledge or understanding. Plus, art is HUGE, and I would like to help as many people in their artistic endeavors as I can.
Quick side note: In my Journeys series, I’m documenting my progress toward mastery of line, silhouette, and form as I go through Peter Han’s Dynamic Sketching courses & Dynamic Bible. I cannot enroll in Peter Han’s awesome online Dynamic Sketching courses, what with the Coronavirus pandemic, managing virtual learning for my tiny humans, a day job, and carving out studio time. You know, life these days 😅.
I’ve done the next best thing and cobbled together my own self-guided version by looking at the courses’ syllabuses and examples past students have posted online. Once I can sign up and actually take those courses, I’ll document everything and review the courses here in my blog.
Exploring Shapes: An Important Element of Art
Let’s talk more about shapes. As far as I can tell, there are at least 21 distinct basic shapes and dozens of shape combinations classified as mathematical 2D shapes. I did not think there were that many until I started researching it, but, helpfully, they all fall into two categories: Polygonal or Curved. The list below contains the names and examples of sufficiently visually distinctive shapes—rather than shape combinations.
This list merely represents my opinion. There are multiple lists of different things defined as shapes beyond curves and polygons, including symbols, surfaces, polytopes (what these are, I do not know), mathematical shapes, etc. I compiled my own list into the table below and added a sketch of each for visual reference. Having a robust shape library helps us define form in art.
|Polygonal Shapes||Curved Shapes||Other|
|Rhombus||Heart||Figure eight (lemniscates)|
|Pentagon (5 sides)|
|Hexagon (6 sides)|
|Heptagon (7 sides)|
|Octagon (8 sides)|
Most, if not all, of the shapes above are likely familiar to you. Lines help us make these shapes, and adding depth to each helps us create forms in art. When not being used to construct forms, shapes are often used for patterns, details, and/or to add or imply texture.
For example, the pattern on a character’s costume or the design of a tattoo or tribal face paint is left as “flat,” two-dimensional shapes that are being used to describe the three-dimensional form on whose surface they live.
In contrast, in graphic design, shapes seem to be the focus rather than form. When you Google “graphic design” and click on “images,” you’ll see a lot of lines, shapes, and colors used in conjunction with the principles of design to create compelling, vivid “graphic” images. I’ve found that when the term “graphic quality” is used in art, it usually means the emphasis is on crisp shapes and line quality.
In this next video, KQED Art School does a good job of further illustrating what shape in art is:
I have some visual examples coming up later in this post that should help clarify everything I’ve been discussing, so now let’s dig into a bit of the nuance of form.
The Five Basic Forms in Art
There are 5 Basic Forms: The Cube, Sphere, Cylinder, Cone & Pyramid.
Shapes become forms when depth is added.
- A circle can become a sphere or a cylinder.
- A square can become a cube or a pyramid.
- A triangle can become a cone or a prism.
- A rectangle can become a cube or a cylinder.
Which form each shape becomes depends on your intent, and its proportions will depend on which perspective you use and where the form sits concerning the horizon line.
Here are a few examples I created in one- and two-point perspective:
In two-point perspective, all the forms you create begin with cubes/boxes. In one-point perspective, you can begin with any shape you like.
Here’s one more video from KQED Art School that has more great examples of what form in art can look like:
The Five Basic Forms in Nature
The five basic forms are geometric and mathematical, and geometric forms are frequently described as “man-made.” Regarding objects we typically draw as artists, this is probably accurate. However, I don’t want to leave it because it limits our thinking as makers and creators. Geometric forms are found in nature in a variety of areas. So far, I have found that all but one of the five basic forms, the pyramid, frequently occur in nature.
I have only found one example of the pyramid in mineral/gem/crystal formations, and even then, it’s rare. Shapes, silhouettes, and forms are all naturally occurring things observed every day in our world. Given how much knowledge and inspiration we have always drawn from the natural world, I’m afraid I have to disagree with the idea that geometric shapes/forms are somehow inherently “man-made.”
If I might briefly digress: Technically, humans cannot create anything entirely on our own because we’re unable to create something from nothing. We must always rely upon our Earth’s resources as a springboard for anything we make, and those resources have been here far longer than we have. Just sayin’.
Let’s take a look at some examples of the five basic forms as they occur in nature.
Organic Forms and Geometric Forms
Forms in nature are organic and tend to be curvy, free-flowing, and have much more variation in their forms, patterns, and textures. They are also less easily measurable than geometric forms. My own preference is for organic forms. I find organic forms to be the most unique, dynamic, and extremely fun and challenging to draw. Geometric forms can be just as fun and interesting, though I think their mathematically defined natures lend them more to stabilizing and structural uses than dynamism.
First, we need something to draw! I have tried to go about this in an orderly way–going from quite simple to complex forms from one example to the next. I have tried to use easy to find everyday objects for each. For this type of demonstration, I’ve included the unedited reference, then the silhouette, a breakdown of the basic flat shapes, and finally, a form drawing with contour lines.
If anything seems unclear or confusing, please let me know by messaging me through my Contact page or in the comments section.
Breaking down forms into simple shapes for the start of your drawing helps you better handle what you are trying to do—especially when the forms are especially complex. Trains have a lot of parts, and each is a form. Some parts have parts, and those are all forms to break down and understand. I haven’t broken down every single form visible in the reference for the sake of time, but there should be enough here to be clear.
Subjects Without Form: Those Tricky Elements and their Form Changes
Things like water, air, smoke, and fire are not your standard forms. Due to their varied and shifting natures, all the elements are a little more challenging to depict. Being without solid, static forms, they change depending on circumstances and external influences and conditions.
Water, for example, conforms to whatever container it’s in—whether that’s an inorganic glass or a natural container like the Earth (like a lake or a pond). It is also somewhat self-containing in that it sticks to itself—which how we get water drops and puddles.
Smoke or gas (the types we can see) can technically “fit” into containers, but that is not how they usually occur or how we end up seeing them. Smoke and gases have volume (which varies), but their most defining features are scent (which we cannot draw) and motion. The forms smoke and gases take also depend on what their origins are. Smoke from an explosion or a fireplace has completely different forms, motion, color, opacity, and value than smoke from a cigarette or a candle.
Fire is another subject we draw that does not have a static form. The shapes and forms of fire depend very much on whatever is being burned. A wildfire has a much larger, more energetic form than that of a campfire or the fire from a lighter. All of these are types of fires, but they would each be drawn a bit differently.
Finally, we have Air. We cannot draw or paint air—it is an invisible messenger. We can only draw its effects and some of what it carries. Air affects how we draw all the other elements and objects present in a scene or design. For example, we can draw the dust, leaves, and other debris that can be carried on or blown around by the wind.
Air carries scents all the time, but we cannot really draw those so much as indicate them with other techniques—like a green, stinky-looking whiff of smoke passing under a character’s upturned and offended nose. How we draw the things carried in the air determines the quality and mood of the atmosphere we are depicting. A scene with a gentle spring breeze has quite a different impact than a howling storm.
Drawing more elemental things in nature requires a bit more thought and analysis, plenty of research and reference, a clear understanding of your intent, and a firm grasp of gesture and light.
Adding Depth to Create Form: A Brief Word on Light & Perspective
Since I just mentioned it, now is a good time to go over some basics of The Fundamentals of Light. To successfully draw form does not require color, but it does require a basic understanding of how light and perspective work. The study of light and perspective are both quite involved. There is a wide range of effects possible in each area, and they require at least a small mountain’s worth of practice to grasp adequately.
The basics are simple enough to explain, which I will do here with light. Having read books and taken classes on perspective, I know it is best explained visually so I will leave that for another time.
When it comes to the physical world, the only reason our eyes see anything at all is because of light. As light interacts with the different forms and elements in our world, it creates shadows, reflections and refraction, bounce lights, rim lights, and color shifts. Until we add the elements of space and light to shapes, they appear flat on our page. Even without using a horizon line and vanishing points, you can begin to add depth to any shape by extending it further into space, in any direction, and adding contour lines.
Add more depth by lighting your object, which means adding values (light and shadow). The same process can be applied when you use traditional perspective with horizon lines and vanishing points. The range of values given by light goes much further in describing the forms by giving the object a sense of weight and context within the space it occupies.
Light and shadow help objects feel “grounded” in the picture plane, so they don’t appear to be “floating in space.”
Adding Depth with Light & Shadow: A Simple Demo
Lines and shapes serve as early starting points to begin drawing and orienting the position of the forms they will become with the addition of depth. In the examples I created, I have shown the process of going from two-dimensional shape to the illusion of three-dimensional form and lighting a circle to transform it into a sphere.
This is a completed basic light demo with a sphere. Sometimes it helps to begin at the end, so you know where you want to end up. Next, I’ll break out the steps I used to arrive here.
Create a solid circle shape.
I used a toned background because it helps me see the contrasts of light and shadow much more easily than a white background.
Decide on your light’s source, direction, and angle.
There are several properties involved with light, and that means quite a few decisions need to be made about your light source that will depend on your image goals.
To keep this simple and digestible, I’ve chosen a light source similar to the sun but much less intense and yellow.
Add light to the shape’s surface.
This begins to give the first indication of depth by putting one side in light and the other in the darker mid-tone of the shape’s local tone.
Begin adding the half tone and form shadows.
Form shadows include the terminus/terminator and core shadow. The characteristics of form shadows depend on the number of light sources and their properties.
Add the cast and occlusion shadows.
The cast shadow is the shadow created by the object blocking the light, and the occlusion shadow is the darkest area of shadow where no light can reach.
Add the highlight and reflected (bounce) light to your object.
The highlight is a small area on the object that receives the most direct light from the light source, and the reflected light is an area that is receiving a small amount of illumination from the reflection of the light source when it bounces off the ground plane and/or other objects that may be present in your scene.
Laid out next to each other, it is easier to see the progression from a flat 2D shape to a 3D sphere with light and depth.
Adding Depth with Space: Another Simple Demo
Another way to begin adding depth to your shapes is to use space and perspective. Drawing into space can add depth to a shape without using “proper” perspective. How you choose to add a sense of depth to your drawings really depends on your goals. For representational art, accurate perspective is a must for your finished product—but not when you’re just sketching to get ideas out.
When you are sketching for fun, or just trying to flesh out your understanding of an object’s forms, adhering to rules of perspective is not necessary. I shared some form breakdowns earlier, and now I would like to share some examples of how to turn shapes into forms using space. These are simple, quick, and sketchy examples that are not highly rendered.
I focused on turning each shape into a form by extending them out in space, adding planes and contour lines, and adding some simple values.
A quick note here: While I kept this simple, dealing with the human figure requires a little familiarity with human anatomy. My goal in including a human form for this “shapes to forms” example is to demonstrate that the level of complexity does not really matter because the process remains consistent.
Adding Depth with Perspective: Yet Another Simple Demo (last one, I promise!)
To turn shapes into forms using perspective, I started with a horizon line, one vanishing point (for 1-Point Perspective), and a few basic shapes. The next steps are essentially the same as in the earlier examples, except that when I extend the corners or contours of the shapes back in space, I am extending them toward the vanishing point.
The process does change a little for 2-Point Perspective in that you do not start with shapes but with simple lines. To achieve depth in perspective, you extend lines from each end of the lines to each of the two vanishing points.
If you try to begin with shapes in two-point perspective, things go wonky quickly. I encourage you to give it a try to see what I mean. Sketching in perspective makes sense when you are working out a scene, but if you are having fun or getting ideas out, trying to use perspective right away ends up bogging down your efforts. The idea must come first, and then perspective can help bring it together.
Show Yourself Some Love! You Made it!
Okay, so do me a favor, would you? Kiss your hand and touch your forehead. It will feel silly but try it anyway. That is how you kiss your brain! Congratulations, you made it through all that information! It was a lot! I learned the “kiss your brain” thing from my kiddo’s teacher. Isn’t it cute?
In all seriousness, when you hang in there and gain new knowledge, it is super important to acknowledge your effort, work, and growth. It helps boost your morale and confidence. You are awesome, and I am glad you hung in there with me 😊
My goal here has been to give a thorough and clear overview without confusing anyone or diving too deeply into other related areas. I am also trying to make my posts, and my entire website reflect my voice. I am an open and expressive person, and I want my posts to feel conversational, pleasant, and informative. I hope I’ve achieved that here.
Please let me know if you have any questions—or need help if I have confused you—in the comments section below.
Take care and Happy drawing!