Pencil Drawing of Smoke: Wisps, Density and Shading

Object Drawing Lessons

Smoke is not a solid object, so a pencil drawing of smoke works by suggesting shape through edges, gaps and tone. This lesson builds a plume from a dense core outward to faint wisps. A drawing convention is defined here so checks are consistent: x-height is measured from baseline to midline of lowercase letters, and letter styles vary, so all measurements are relative to your own writing. You will plan wisp curls, assign density zones, shade from dark to light, and check your work with simple arithmetic and visual tests. No special tools are required beyond a pencil, paper and eraser. All numerical values are hypothetical examples you can adjust after measuring your own equipment.

Practice materials: Printable downloads are not available for this lesson yet. Use the instructions and four exercises below.

Planning the plume and wisp curls

Begin by deciding the plume's direction and width. Draw a light centerline from the source upward, then mark three density zones along it: dense core near the source, medium middle, and faint dissipation at the top. Each zone gets a different pencil pressure and a different amount of empty paper.

Wisps are curved strands that peel away from the main body. Draw each wisp as a shallow S-curve or C-curve, starting at the plume edge and ending in a tapered point. Keep wisp length varied: a useful hypothetical example is three short wisps, two medium and one long per side, but adjust to your composition. Use the x-height convention to keep sizes consistent: measure each wisp's length against the baseline-to-midline distance of a lowercase letter in your own handwriting, and record the ratio you choose.

1. Draw a light centerline and mark the three density zones with small tick marks.
2. Sketch two or three wisp curls on each side using S-curves and C-curves.
3. Taper every wisp to a point and leave gaps between wisps so paper shows through.
4. Check that no wisp crosses the centerline unless you intend a curl inward.

Building density zones with tone

Density is shown by how much graphite covers the paper. In the dense core, use overlapping short strokes and keep gaps small. In the medium zone, space strokes farther apart and lighten pressure. In the faint zone, use single light strokes or leave the paper mostly white.

A simple checkable rule: if the dense core has about twice as many strokes per square unit as the medium zone, and the medium zone about twice as many as the faint zone, the gradient reads clearly. These ratios are hypothetical examples; measure your own stroke spacing if you want exact values. Keep units consistent: if you record spacing in millimetres, record all zones in millimetres.

1. Fill the dense core first with short overlapping strokes.
2. Move to the medium zone and increase spacing between strokes.
3. Add faint strokes at the top and edges, erasing any stroke that looks too dark.
4. Step back and confirm the darkest area is nearest the source.

Shading edges and dissipation

Edges of smoke are soft, not outlined. Instead of drawing a line around the plume, shade inward from the edge with light strokes and let the boundary fade. Use an eraser to lift graphite where a wisp should dissolve into the paper.

Dissipation means the plume loses contrast as it rises. Compare the top third with the bottom third: the top should have fewer dark strokes and more visible paper. If the top looks as dark as the bottom, erase lightly and re-space the strokes.

1. Soften every outer edge by shading inward rather than outlining.
2. Lift graphite with an eraser at wisp tips to create fading.
3. Compare top and bottom contrast and adjust stroke count.
4. Leave at least one clear gap between major wisps for readability.

Checking proportion and readability

A finished plume should read as smoke from a short distance. Check proportion by measuring the plume height and width with a pencil or ruler; a hypothetical example is a height-to-width ratio of about three to one, but any consistent ratio you choose is acceptable if the plume looks balanced. Record the ratio in the same units for height and width.

Readability check: the dense core should be the first area the eye finds, and the wisps should lead outward without clutter. If two wisps overlap heavily, separate them or shorten one.

1. Measure height and width and record the ratio.
2. Confirm the dense core is the darkest area.
3. Separate overlapping wisps or shorten one.
4. View the drawing from about one meter away to test readability.

Worked example

Draw a plume 12 cm tall and 4 cm wide with three density zones and four wisps. Use a hypothetical stroke ratio of 2:1 between adjacent zones.

Four practice exercises

Common mistakes

• Outlining the plume with a hard continuous line. Erase the outline and shade inward from the edge so the boundary fades.
• Making the top of the plume as dark as the core. Reduce stroke count in the top third and lift graphite with an eraser.
• Drawing wisps as straight lines or thick tubes. Redraw each wisp as a tapered S-curve or C-curve with a pointed end.
• Filling all paper so no gaps remain. Leave deliberate gaps between wisps and inside the faint zone.

Self-check rubric

• Plume has a clear centerline and three distinguishable density zones.
• Wisps are tapered curves, not straight lines or tubes.
• Dense core is the darkest area and the top is the faintest.
• Edges fade without a hard outline.
• At least one clear gap remains between major wisps.
• Height-to-width ratio is recorded and consistent with the chosen example.
• Drawing reads as smoke from about one meter away.

Questions and answers