Quick answer: The secret of how to paint digital raindrops is to treat each drop as a tiny lens: paint the area behind it slightly distorted and flipped, add a dark rim on the side facing the light and a small sharp highlight on the same side, plus a soft glow on the opposite edge. For falling rain, paint thin diagonal streaks on separate layers at different opacities and blur levels, then add wet-surface reflections, splashes and haze. Rain is mostly about atmosphere, so lower contrast and desaturate the scene before adding a single streak.
Rain is two different painting problems that people often mix up. Raindrops on glass or leaves are a close-up study in refraction and highlights. Falling rain in a scene is an atmospheric effect, closer to fog than to individual objects. Both can be painted convincingly, and both go wrong in predictable ways.
This tutorial covers how to paint digital raindrops and rain in a step-by-step way: drops on a window, drops on leaves and skin, falling rain streaks, splashes and the wet-world look that makes a rainy scene believable. The techniques work in Procreate, Photoshop, Krita, Clip Studio Paint and other layer-based apps.
How a Raindrop Behaves Visually
A water droplet sitting on a surface acts like a small curved lens. That creates a few consistent visual effects you can paint every time:
- Refraction: the scene behind the drop appears inside it, often flipped and compressed. On a window, the drop shows a tiny upside-down version of the world outside.
- Specular highlight: a small, sharp bright spot where the light source reflects off the drop’s surface, on the side facing the light.
- Dark edge: the rim of the drop, particularly on the side toward the light, often appears darker because of how light bends at the edges.
- Caustic glow: light passing through the drop concentrates on the opposite side, creating a soft brighter area inside the drop and sometimes on the surface beneath it.
- Cast shadow: on opaque surfaces like leaves, drops cast a small shadow, often with a bright spot inside it from focused light.
Once you understand these five parts, every droplet becomes a simple recipe rather than guesswork. If you prefer learning from structured lessons, many of the books in our roundup of the best digital painting books for beginners explain light, reflection and material effects like this in more depth.
Brushes You Need
| Brush | Purpose |
|---|---|
| Hard round, small | Drop outlines, sharp highlights |
| Soft round / airbrush | Glow inside drops, haze, soft shadows |
| Thin streak brush (or hard round with streamline) | Falling rain lines |
| Scatter / spatter brush | Small droplets, mist, splashes |
| Smudge or blur tool | Motion blur on rain, softening |
Most apps include these by default. A custom rain brush that draws a streak with randomized length and spacing can speed up falling rain, but it is optional.
How to Paint Digital Raindrops on Glass: Step by Step
Raindrops on a window are a popular subject because they combine a blurry background with crisp foreground detail.
1. Paint the background first
Paint or place the scene behind the glass: city lights, trees, a street. Then blur it heavily with Gaussian Blur. A blurred background mimics the shallow focus of looking at drops on glass and makes the drops stand out.
2. Darken and desaturate slightly
Rainy scenes are generally lower in contrast and saturation. Add a gray-blue layer at low opacity or reduce saturation a little across the background.
3. Block drop shapes
On a new layer, draw drop shapes with a hard brush in any color. Vary them: a few large round drops, many small dots, and some elongated drops with trails where water has run down. Real windows show clusters and gaps, not even spacing.
4. Fill drops with flipped background
This is the step that makes drops look real. Duplicate the blurred background, flip it vertically, and reduce the blur slightly so it is sharper than the background. Clip it to the drop layer. Now each drop shows an inverted, slightly sharper view of the scene, just like real refraction.
For a quicker version, fill each drop with a gradient: darker on the light-facing side and lighter on the opposite side, using colors sampled from the background.
5. Add the dark rim
On a clipped layer, paint a thin dark edge along the side of each drop facing the light source. Use a soft brush and keep it subtle on small drops.
6. Add the caustic glow
On the opposite side of each drop, add a soft lighter area using a Screen or Add layer at low opacity.
7. Add highlights
On a top layer, add a small, sharp white or near-white highlight on the light-facing side of the larger drops. Not every small drop needs one, and identical highlights on every drop look artificial.
8. Trails and tiny droplets
Paint a few vertical trails where drops have slid down, with a thinner, fainter version of the same treatment. Use a spatter brush to add tiny mist droplets around the larger ones.
Raindrops on Leaves, Petals and Skin
On opaque surfaces, drops behave a little differently because you cannot see through the surface beneath them.
- Paint the surface first, complete with its texture and lighting.
- Shape the drop as a rounded dome. On a leaf, drops are often slightly flattened on the bottom where they sit.
- Copy the surface color inside the drop, a touch more saturated and darker on the light side.
- Cast shadow: paint a small shadow on the surface opposite the light, with a bright spot inside it where light has been focused through the drop.
- Highlight: a sharp highlight on the light-facing side.
- Reflected light: a thin, lighter edge along the bottom of the drop.
On skin, drops look best small and scattered, following the curve of the face or body. Wet skin also becomes slightly more reflective overall, so add a few broader soft highlights.
Painting Falling Rain
Falling rain is a layered effect. Painting each streak individually on one layer tends to look flat. Instead, build depth with three or more rain layers.
Step 1: Set the mood
Before painting a single streak, adjust the scene: lower the overall contrast, desaturate the colors, push the background lighter and grayer with haze, and darken the sky. A rainy scene without streaks should already feel wet and gloomy.
Step 2: Far rain layer
On a new layer, paint many thin, short, faint streaks in a light gray-blue at low opacity. Keep them all at the same angle, which depends on the wind. Blur this layer slightly. This forms a soft veil.
Step 3: Middle rain layer
Paint fewer, slightly longer and brighter streaks on another layer. Use the same angle with tiny variations.
Step 4: Near rain layer
Add a small number of longer, bolder streaks close to the viewer. These may be more motion-blurred and can be brighter where they catch light.
Step 5: Motion blur
Apply Motion Blur (Photoshop, Krita) or a directional blur to the rain layers in the direction of the streaks. In Procreate, use Adjustments, then Motion Blur.
Shortcut: fill a layer with noise, increase contrast so only a few bright specks remain, then apply a strong motion blur at the rain angle. Set the layer to Screen. Repeat at different scales for depth.
Step 6: Light interaction
Rain is most visible against dark backgrounds and in front of light sources. Make streaks brighter in front of streetlights, windows and headlights, and nearly invisible against light sky. This one detail adds a lot of realism.
Wet Surfaces, Puddles and Splashes
A rainy scene feels real largely because of the ground, not the streaks.
- Wet pavement becomes darker and more reflective. Paint light sources reflected vertically beneath them, stretched and broken up.
- Puddles act like mirrors. Paint the sky and nearby objects flipped inside them, slightly darker, with ripples breaking the reflection.
- Ripples on puddles are small concentric ellipses, flattened by perspective.
- Splashes where drops hit the ground are tiny crown or spike shapes, best kept small and sparse.
- Mist rises near the ground in heavy rain. Add a soft, light haze along the bottom of the scene.
Color and Light in Rainy Scenes
Overcast light is soft and comes from the whole sky, so cast shadows are weak and blurry, and forms are modeled mostly by gentle value changes. That changes your shading approach:
- Daytime rain: shift the palette toward cool grays, gray-greens and muted blues. Keep the brightest value in the sky and the reflections on wet surfaces.
- Night rain: the darkness makes every light source important. Warm lamps, colored signs and headlights create glowing halos in the wet air and long reflections on the ground.
- Sun-shower: rain lit by low sunlight can look bright and golden against a dark storm cloud. Streaks catch the light and appear warm rather than gray.
One useful habit is to paint a quick color thumbnail of the rainy mood before committing. It takes a minute and prevents a scene that has rain streaks but still feels sunny.
Rain Intensity Guide
| Rain type | Streaks | Atmosphere | Ground |
|---|---|---|---|
| Drizzle | Very faint, short, many | Light haze, soft gray | Damp, subtle shine |
| Steady rain | Clear streaks, medium length | Moderate haze, muted colors | Wet, reflective, small puddles |
| Downpour | Dense, long, overlapping | Heavy haze, low visibility | Flooded areas, lots of splashes |
| Storm | Strongly angled by wind | Dark sky, possible lightning flash | Splashes, streams, ripples everywhere |
Common Mistakes When Painting Rain
Even, uniform streaks. Identical lines at identical spacing look like a pattern. Vary length, opacity and density across layers.
Rain over a bright, sunny scene. Rain needs mood. Lower contrast and saturation first.
Drops without refraction. A circle with a white dot looks like a bubble or bead. Show the inverted background or surface color inside the drop.
Same highlight on every drop. Vary size and position, and leave small drops without highlights.
Too many streaks in front of the subject. Rain can obscure your focal point. Thin it out around faces and key details.
Dry ground. Without reflections and darker wet surfaces, rain streaks look pasted on.
Painting Rain Without Hard Lines
If your style avoids outlines, rain still works well. Instead of drawing drops with an edge, define them purely by color and value shifts: the darker refracted interior against the lighter background, the sharp highlight, the glow. Falling rain becomes soft value streaks rather than drawn lines. The lineless digital painting tips guide explains how to build forms entirely from shapes and values, which pairs naturally with atmospheric effects like rain and mist.
Practice Ideas
- Paint a single large drop on a leaf with all five visual components.
- Paint a window with drops over a blurred city at night.
- Take a daytime landscape and convert it to a rainy scene with mood adjustments, rain layers and wet ground.
- Paint a street scene with puddles reflecting neon signs.
Working quickly helps with atmospheric effects because it stops you from overworking individual drops. The digital speed painting tips guide has a timed workflow you can adapt for rainy scene studies.
FAQs
How do you paint raindrops digitally?
Draw a drop shape, fill it with an inverted, slightly sharper version of the background, add a dark rim on the light-facing side, a soft glow on the opposite side and a small sharp highlight. Vary sizes and spacing.
How do I paint falling rain in Procreate?
Lower the scene’s contrast and saturation, then paint thin diagonal streaks on several layers with different opacities. Apply Adjustments, then Motion Blur, along the rain angle. A noise layer motion-blurred and set to Screen is a fast alternative.
What color should rain be in digital art?
Rain streaks are usually a light gray, blue-gray or a tint of the surrounding light, at low opacity. They appear brighter against dark backgrounds and in front of light sources, and almost invisible against a pale sky.
Why do my raindrops look like bubbles?
Usually because they lack refraction. Fill drops with flipped background colors, keep highlights small and sharp, and add a darker rim on the light side instead of a uniform outline.
How do I make a scene look wet?
Darken and add reflections to the ground, paint puddles that mirror the sky, add ripples and small splashes, and lower overall contrast and saturation. Wet surfaces do more for a rainy look than the streaks themselves.
Should rain streaks be straight or angled?
Straight down suggests calm conditions, while angled streaks suggest wind. Keep all streaks at roughly the same angle with only small variations.
Next Step
Raindrops and rain are a great lesson in how light, refraction and atmosphere work together. If you want a structured way to keep building those fundamentals, our guide to digital painting books worth studying highlights titles that teach light, color and material rendering step by step.
