Your renders, hand-drawn. And they move by themselves.

Boil is a library of procedural toon shaders, outlines, drawn shading, effects, skies and compositor passes that boil: every texture re-draws itself every 2 frames and holds in between, the cadence of hand-drawn animation. No keyframes, no UVs, no image textures. Drag an asset onto your scene and press play.

Everything is drawn, not rendered: watercolor and marker washes, colored pencil, crayon, chalk and ink on paper. Ink is colored, never black. Shadows are tinted, never gray. Every color is an input.

154 animated materials

• Washes & paper: 26 watercolor washes, lined, graph and blueprint paper, aged paper, old-cartoon film print, misprint, and speckle, conical, freeform and palette washes
• Paint media: marker wash, gouache, ink bleed, watercolor salt, cauliflower blooms, masking-fluid resist, spray paint, stencil spray, ink spatter, sponge dab, paper marbling, batik, oil pastel, finger paint, painterly brush strokes, crayon resist, scratchboard, cross-stitch and eraser smudge
• Patterns & fabrics: wood, brick, lava, slime, scales, chrome, chalkboard, polka dots, plaid, wavy stripes, camo, terrazzo, glitter, tie-dye, knit, houndstooth, argyle, denim, a glitch pattern and more. Many have a Style menu with three looks
• Nature & objects: grass blades (meadow, lawn, wild), oil slick, cracked earth, snow and moss caps, cartoon ice, pool water, energy orbs, a cartoon eye that looks at a target (with iris and glint menus), cartoon glass, gems, a soap bubble, a cartoon globe, retro chrome, and cartoon gold, silver and copper

Flow: things that flow travel on twos

Lava, water, fire, clouds, smoke, beams and aurora travel forward one step per drawing and never repeat, while the drawn lines keep boiling. Every flowing material has a Motion menu (Flow on Twos, Flow on Ones, Boil Only), Flow Speed, Flow Direction and Flow Space (Object or World).

16 skies

Hand-drawn world backgrounds that boil on twos: clouds drift, stars twinkle, aurora ripples, snow and rain fall. Drop one on your World, or on any object.

Shade: 25 layers of drawn light and shadow

• Drawn shading on top of any Boil material: wash tones, ink-blot shadows, chalk rim light, inner line, hair shine, crevice pooling, depth wash and cartoon metal
• Glints in 12 shapes (circles, squares, window panes, stars, anime highlights and more), still or animated
• Hand-drawn media shading modeled on real marks: hatch, crosshatch, scribble, stipple, dots, pencil, crayon, charcoal, and a pressure shade where the strokes press harder as the shadow deepens
• Digital looks: ASCII, dither, pixel, airbrush and glitch, plus a Glitch Overlay that glitches any material, with a Calm / Default / Heavy / Custom intensity menu
• Shadows default to a lilac-leaning glaze of each color; switch Shadow Mode to set your own

44 line styles, two ways to draw

• 14 mesh outlines (one modifier per object): chalk ink, tapered brush, colored pencil, crayon, charcoal, dry brush, sticker, dashed, SquiggleVine, brush pen, ballpoint, marker and more
• 30 Grease Pencil line styles built on Line Art, with real gaps, overshoot, tapered ends and creases: sketch, tidy, rough + clean, construction lines, gesture, woodcut, stitched, rainbow and more. Every style can draw on / erase off with one slider

31 boiling effects (Geometry Nodes)

• Nature: clouds, bushes, grass tufts, wispy smoke, rocks, icicles, a wobble blob, falling leaves, lava-lamp blobs
• Particles, weather & energy: sparkles, confetti, fireflies, dust, rain, snow, electric charge, droplets, bubbles, wind streaks, lightning, a rainbow
• Animation craft: action lines, smear frames, squash & stretch, impact poofs, cartoon emotes, a sloshing potion and a burn-away dissolve. Motion effects follow your animation with no set-up
• Foam Ring: drawn foam where any object meets the water, with ripples that spread and fade

16 compositor passes & extras

• Passes for any render: paper & grain, ink edges, misprint, frame boil, pixel, dither, ASCII, glitch, onion-skin ghost trails and an inked vignette
• Hand-drawn lens flares, speech bubbles that fit your text, palette sets, comic panel borders, a sketchbook page and kraft paper

Made to be used

• Ones, twos or threes: everything ships on twos. Change Frames per Drawing on the Boil Clock and the materials, skies, ready-made lines and effects, and compositor passes all follow
• EEVEE and Cycles: flat items match in both engines. Shade layers draw your lights in EEVEE and render the flat color in Cycles
• Asset Browser ready: 480+ assets, each with a thumbnail and tooltip, plus three demo scenes (day, golden hour, night)
• No Python needed: works with Auto Run Python Scripts off
• Every control up front: each material's controls show right in Properties > Material, grouped into tidy panels (Style, Color, Look, Boil, Motion), with a tooltip on every one
• Your colors: fire, lava, water, sunsets and the other palette looks have a Custom Colors switch
• Readable node trees: the node graphs are organized into labeled sections, so you can open one up and see how it's built
• 12 months of updates, including free seasonal drops

Requirements

Blender 5.2 or newer (built and tested in 5.2 LTS). Grease Pencil lines use Line Art and need a scene camera. Motion effects must be baked before render-farm or command-line renders. Compositor passes need Compositing on and are designed for the Standard view transform. Mesh outlines need closed meshes.