A spiral augmented by a perlin noise type pattern.

Perlin's Spiral

andrewray

Mandelbrot

Multicolor polkadots. It creates a random color based on the rotated UV coordinates.

Twister!

A polkadot pattern made by rotating a grid of dots by 45 degrees.

Polkadots

Multicolored dots in a grid or random arrangement (tweak the spread parameter), based on sampling an image. Based on the GPU gems chapter https://a248.e.akamai.net/f/248/10/10/http.developer.nvidia.com/GPUGems/gpugems_ch20.html

Something is wrong here, not sure what.

Polkadots Randomized

Phong Light

Black & White Texture Filter

Shaders are terrifying. Here's some text.

Hello, ShaderFrog

Blurry Vertical Stripes

Blurry Horizontal Stripes

Another way to do a checkerboard. Doesn't apply as well to a sphere. Check out http://shaderfrog.com/app/view/120 for the other variation.

Checkerboard

Another way to do a checkerboard. Doesn't apply as well to a sphere. Check out http://shaderfrog.com/app/view/4 for the other variation.

Checkerboard Variation

Visualized normals coordinates with a very simple shader.

Normals Visualized

Visualized UV coordinates with a very simple shader.

UV Coordinates

Marc's Rad Shader

msaint

Basic Tiling Caustic

Caustic Perlin

An effect using a cube camera to drive the reflection. Shader Frog automatically creates a Three.js CubeCamera to pass in as a uniform to a samplerCube

Refraction Cube Camera

A sphere map reflection effect using an image.

Reflection Sphere Map

Reflection Cube Camera

An animated grid pattern that was floating around on GLSLSandbox for a while. This one is a lot more configurable.

Circuit Grid

Diamond Wallpaper

Disco Dots

An American flag. Could use some tweaking!

American-Ish Flag

An actual function domain graph. You can see what it plots in the top function, however this is compilation output of an input function. See https://github.com/forestbelton/react-domain-coloring for the complete project.

Function Domain Graph

Spiderweb

Pixelated

Rose Fractal

A fractal pattern based on http://glslsandbox.com/e#23558.8

Rorschach Fractal

Pinwheels Forever

A bunch of little flowers in a row, spinning forever

Flower Grid

A wiggly effect using both vertex and fragment shader.

Wiggly Effect

An effect that's like light filtering through water.

Underwater Beams

Voroni Ice

An animated oily water pattern, or maybe a fire pattern. First seen at http://glslsandbox.com/e#11554.0

Oil or Fire

A wavy effect. Mess with the amplitude! This shader needs credit added, I can't remember where I took the source code from.

Wavy Plastic

Disco Ball

Oil Painting

A twinkling star field effect. Doesn't work well when moving / rotating.

Star Field

A vignette effect. Really only works well on cubes.

Vignette

Change the uniform color and use this shader as a combination input to add color to your combination.

Color Multiplier

Ice Cream Drip

More for demonstration purposes than anything, this light is a simple dot product calculatin of the normal and the light position

All Three.js Shaders