Art Media and Technique Terms for AI Image Prompts — AI Image Generation Guide

Art Media and Techniques#

A style description becomes more useful when it identifies medium, support, mark-making, edge quality, palette, and finish:

gouache on cold-press watercolor paper, opaque simplified shapes, dry-brush edges,
visible paper tooth, limited ultramarine, ochre, coral, and cream palette

Drawing media#

Medium	Characteristic appearance	Prompt cue
Graphite pencil	Silvery gray line, pressure-sensitive value, smudging, fine hatching.	`soft graphite study on ivory paper`
Mechanical pencil	Uniform precise thin line, technical cleanliness.	`0.5mm mechanical-pencil construction drawing`
Charcoal	Deep velvety blacks, dusty gradients, broad expressive marks.	`vine charcoal gesture drawing`
Compressed charcoal	Denser black and harder edges than vine charcoal.	`compressed-charcoal portrait`
Conté crayon	Firm chalky strokes in black, white, sanguine, or earth colors.	`sanguine Conté study`
Chalk	Powdery opaque line on toned or rough support.	`white chalk highlights on gray paper`
Soft pastel	Highly pigmented powder, velvety blocks, blended transitions.	`soft-pastel landscape`
Oil pastel	Waxy dense color, blunt strokes, scraped or layered texture.	`layered oil-pastel illustration`
Colored pencil	Controlled translucent layers, visible directional strokes, burnished areas.	`colored-pencil botanical plate`
Silverpoint	Delicate fine gray metal line that tarnishes warmer over time.	`Renaissance-like silverpoint study`
Ballpoint pen	Fine consistent ink line, scribbled tone, crosshatching, occasional ink blobs.	`blue ballpoint sketchbook drawing`
Technical pen	Crisp fixed-width black lines suited to diagrams and architecture.	`technical-pen linework`
Brush pen	Tapered calligraphic strokes with expressive thick-thin variation.	`bold brush-pen drawing`
Marker	Flat saturated fills, overlapping streaks, alcohol bleed, crisp silhouette.	`alcohol-marker concept sketch`
Wax crayon	Chunky waxy color, paper tooth showing through, childlike or graphic.	`wax-crayon drawing`
Scratchboard	White lines scratched through black coating, dramatic engraved effect.	`fine scratchboard animal illustration`

Ink and line techniques#

Contour drawing: outlines describe boundaries with minimal interior tone.
Blind contour: wavering observational line made without looking at page; raw and intimate.
Continuous line: one unbroken path constructs the entire subject.
Cross-contour: lines wrap around form to show volume.
Hatching: parallel strokes build value.
Crosshatching: intersecting hatch layers deepen tone.
Stippling: dots vary in density for tone and texture.
Scumbling: loose tangled small marks create broken tone.
Scribble shading: layered loops or irregular strokes build energetic values.
Line-and-wash: ink drawing combined with transparent watercolor washes.
Ink wash: diluted ink forms atmospheric monochrome values.
Sumi-e: economical East Asian ink painting emphasizing brush energy, negative space, and tonal ink.
Dry brush ink: bristles skip over paper tooth, creating broken textural strokes.
Spatter: droplets create random energetic texture.
Calligraphic line: stroke weight and taper carry expressive rhythm.
Engraving-like line: controlled parallel and curved hatching imitates incised print lines.

Water-based painting#

Medium	Properties	Useful specificity
Transparent watercolor	Luminous washes, paper white as light, blooms, granulation, layered glazes.	`wet-on-wet sky, dry-brush foreground`
Gouache	Opaque matte color, flat shapes, reactivated edges, possible dry brushing.	`opaque gouache editorial illustration`
Acrylic gouache	Flat matte opaque color with more permanent, even layers.	`acrylic-gouache poster shapes`
Tempera	Fast-drying matte paint, crisp strokes; egg tempera supports fine layered detail.	`egg-tempera panel painting`
Casein	Opaque milk-protein paint, matte and velvety, suitable for illustration.	`casein landscape study`
Acrylic	Versatile polymer paint from transparent glaze to thick opaque impasto.	Specify fluid, heavy-body, airbrushed, or poured.
Fresco	Pigment integrated into wet plaster, matte mineral color, wall-scale joins.	`buon fresco mural`

Watercolor behavior terms#

Wet-on-wet: soft expanding edges and intermingled color.
Wet-on-dry: controlled shapes with defined boundaries.
Glazing: transparent dry layers build depth and color.
Granulation: pigment settles into paper texture in mottled clusters.
Bloom / backrun: water pushes pigment into cauliflower-like edges.
Dry brush: nearly dry pigment catches paper high points.
Lifting: pigment removed to recover pale shapes or highlights.
Salt texture: crystalline mottling formed during drying.
Masking fluid: reserved crisp white regions amid washes.
Edge charging: a second color introduced into a damp wash.

Oil painting language#

Technique	Visual effect
Alla prima	Wet-on-wet painting completed directly with decisive blended strokes.
Glazing	Thin transparent layers create deep luminous color.
Scumbling	Pale opaque paint dragged thinly over darker dry layers.
Impasto	Thick raised paint catches physical highlights and visible ridges.
Sfumato	Extremely soft smoky transitions without hard boundaries.
Chiaroscuro	Strong light-dark modeling of volume and drama.
Grisaille	Monochrome underpainting or completed work in gray values.
Underpainting	Initial value/color structure remains subtly visible beneath later layers.
Fat over lean	Traditional layering from lean lower paint to oil-rich upper layers; mostly process context.
Palette knife	Broad scraped planes, sharp ridges, and broken color.
Visible brushwork	Individual directional strokes remain legible.
Painterly edges	Selective lost-and-found contours rather than uniformly crisp outlines.
Imprimatura	Transparent toned ground influences all colors.
Verdaccio	Green-gray underpainting traditionally used beneath flesh.

Printmaking#

Process	Distinctive appearance
Woodcut	Bold carved shapes, angular cuts, visible wood grain, high contrast.
Wood engraving	Fine white-line detail cut into end grain, often book-illustration scale.
Linocut	Smooth carved shapes, bold graphic edges, chatter marks, limited colors.
Engraving	Precise incised lines, swelling burin strokes, controlled crosshatching.
Etching	Freer needle-drawn line bitten into metal, varied line and plate tone.
Drypoint	Soft rich burr around scratched lines, velvety limited-edition impression.
Aquatint	Grainy tonal fields, often combined with etched outlines.
Mezzotint	Rich velvety blacks and softly modeled light emerging from darkness.
Lithograph	Greasy crayon/ink marks on stone, tonal drawing quality.
Screen print / silkscreen	Flat opaque inks, crisp stencils, overlaps, occasional registration shift.
Risograph	Soy-ink spot colors, halftone dots, limited palette, charming misregistration.
Monotype	Unique painterly print with transferred edges and plate artifacts.
Collagraph	Textured plate creates embossed, tactile irregular impressions.
Letterpress	Relief-printed type/shapes with slight impression into paper.
Cyanotype	White silhouettes and tonal forms against Prussian blue.
Giclée	High-resolution inkjet reproduction; usually too generic unless paper/ink effect matters.

Print-specific terms include registration, misregistration, overprint, knockout, spot color, halftone, Ben-Day dots, plate tone, deckled paper, embossed plate mark, ink squeeze, and edition numbering.

Illustration approaches#

Editorial illustration: conceptual image designed to clarify or comment on an idea.
Narrative illustration: depicts a specific event, character relationship, or story beat.
Scientific illustration: accurate explanatory rendering with controlled simplification.
Botanical illustration: diagnostic plant structure, clean background, precise venation and growth habit.
Medical illustration: anatomically accurate layered explanatory view.
Technical illustration: precise manufactured forms, cutaways, exploded views, or assembly logic.
Fashion illustration: elongated gesture, garment silhouette, fabric movement, selective detail.
Children's-book illustration: readable emotion and shape language; specify age range and medium rather than assuming one look.
Spot illustration: compact image without full rectangular background.
Vignette: edges dissolve or open into paper.
Iconographic illustration: simplified symbolic forms and consistent visual system.
Pattern illustration: repeat-aware motifs designed as a surface.
Concept art: exploratory design communicating environment, character, prop, or mood.
Keyframe art: polished cinematic moment implying a larger sequence.
Matte painting: broad believable environment extension with integrated atmosphere and perspective.

Collage and mixed media#

Term	Appearance
Paper collage	Cut or torn colored paper, stacked edges, cast shadows.
Photomontage	Photographic fragments recombined into one constructed scene.
Assemblage	Three-dimensional found objects combined physically.
Découpage	Cut printed paper adhered and sealed onto a surface.
Torn-paper collage	Fibrous irregular white edges and overlapping layers.
Cut-paper illustration	Clean scissor/knife silhouettes, layered dimensional shadows.
Papier collé	Pasted papers integrated with drawing or painting.
Mixed media	Multiple named media visibly coexist; name them rather than using this alone.
Found ephemera	Tickets, labels, maps, receipts, handwriting, stamps, and aged scraps.
Tape and staples	Visible attachment methods reinforce handmade construction.
Transfer print	Imperfect reversed imagery, rubbed gaps, softened edges.

Mosaic, textile, and decorative techniques#

Mosaic: tesserae of glass, ceramic, or stone with visible grout.
Tessellation: repeating interlocking shapes with no gaps.
Stained glass: colored translucent pieces joined by dark lead lines.
Enamelwork: glassy colored material fused to metal; cloisonné uses wire cells.
Marquetry: contrasting wood veneers form pictures or patterns.
Intarsia: inlaid pieces create pictorial or geometric surfaces.
Embroidery: thread stitches sit above cloth; specify satin stitch, chain stitch, cross-stitch, or crewel.
Appliqué: cut fabric shapes stitched onto a base.
Quilting: layered textile with stitched channels and loft.
Tapestry: image woven into fabric structure, often with visible warp/weft.
Batik: wax-resist dyed cloth with crackle lines.
Shibori: resist-dyed folds, bindings, or stitches yielding soft geometric patterns.
Block printing on fabric: repeated carved motifs with ink variation.
Papercut: positive and negative shapes cut from a sheet, sometimes layered.
Quilling: rolled paper strips form raised ornamental coils.

Sculpture and three-dimensional media#

Medium/process	Surface and form cues
Carved marble	Subtractive form, crystalline stone, chisel traces or polished skin.
Carved wood	Grain follows form, tool facets, splits, stained or raw finish.
Cast bronze	Molded detail, seams, dark patina, polished high points.
Modeled clay	Finger marks, tool grooves, additive masses, damp or fired surface.
Terracotta sculpture	Warm porous fired clay, hollow construction, chips.
Plaster cast	Matte white mineral surface, seam lines, small bubbles.
Lost-wax casting	Detailed metal cast from modeled original; chasing and patina possible.
Welded steel	Plate and rod assembly, beads, heat discoloration, industrial geometry.
Wire sculpture	Contour-like open structure drawn in space.
Papier-mâché	Layered paper pulp, uneven hand-built surface, painted skin.
Ceramic slip casting	Repeated thin-walled precise form with mold seams.
Relief	Forms project from a backing plane: low, high, or sunken relief.
Kinetic sculpture	Components balance or move via wind, motor, or touch.
Installation art	Space, objects, light, and viewer movement form the work.

Digital and 3D rendering terms#

Term	Intended visual result
Vector illustration	Clean scalable paths, flat fills, precise curves, no pixel texture unless added.
Flat design	Minimal depth cues, solid colors, simplified forms.
Cel shading	Discrete light/shadow bands, animation-like rendering.
Painterly digital	Digital brushes imitate visible paint mixing and bristle texture.
Pixel art	Deliberate low-resolution grid, clustered pixels, limited palette, no smoothing.
Voxel art	Three-dimensional forms built from cubic units.
Low-poly	Faceted geometry with visibly simplified polygon count.
Clay render	Uniform matte neutral shader reveals form without material distraction.
Wireframe render	Mesh edges visible, surfaces absent or transparent.
Photorealistic CGI	Physically plausible materials, light transport, camera response, and imperfections.
Stylized 3D	Simplified shape language and controlled nonreal materials.
Isometric 3D	Parallel-projection-like elevated view, modular diagrammatic space.
Subsurface scattering	Light penetrates skin, wax, leaves, or marble for soft internal glow.
Global illumination	Indirect bounced color and light connect objects to environment.
Ambient occlusion	Soft contact darkening in creases and intersections; should not look dirty.
Ray-traced reflections	Accurate environment and object reflection with roughness-dependent blur.
Volumetric rendering	Fog, smoke, clouds, or light-scattering media have depth.

Edge and mark-making vocabulary#

Hard edge: abrupt precise boundary.
Soft edge: gradual boundary produced by blend, atmosphere, or wet medium.
Lost edge: neighboring values merge so contour temporarily disappears.
Found edge: contour reappears sharply at an emphasis point.
Broken edge: intermittent marks imply rather than fully state a contour.
Geometric mark: regular controlled shape.
Organic mark: irregular natural curvature and variation.
Gestural: rapid movement-led strokes prioritize energy.
Meticulous: small controlled marks and consistent finish.
Loose: abbreviated marks allow the viewer to complete forms.
Tight rendering: polished boundaries and resolved detail throughout.
Dry-brush: scratchy broken pigment across texture.
Impasto: thick physical ridges.
Flat fill: even unmodulated region.
Gradient wash: smooth value or hue transition.

Prompt patterns#

three-color linocut poster, bold carved black contours, flat rust-red and ochre shapes,
visible ink roller texture, slight hand-printed misregistration on warm fibrous paper

transparent watercolor botanical illustration, wet-on-dry leaf shapes, fine graphite underdrawing,
subtle pigment granulation, preserved paper-white highlights, crisp diagnostic details fading into a vignette

stylized low-poly 3D island, broad faceted geometry, matte clay-like materials, soft global
illumination, clean isometric view, restrained teal, sand, and coral palette

Avoid chaining unrelated media unless a mixed-media result is intentional. One primary medium plus two or three process traits usually produces a clearer visual identity.

Use this guide with an AI agent