Based on https://www.shadertoy.com/view/MlfXzN

Transparent Matrix

andrewray

Copy of Spiral Stripes

Anastasia Dunbar

electrical

A vertical stripe pattern. Animation optional, just set speed to 0.

Vertical Stripes

Clouds based on 4d noise. Tiles properly if scale is 1.

Perlin Clouds

Further work required:
- Depth image downsample
- Near blur for emulating macro photography

ref: http://http.developer.nvidia.com/GPUGems3/gpugems3_ch28.html
http://rastergrid.com/blog/2010/09/efficient-gaussian-blur-with-linear-sampling/

DoF Blur Horizontal Pass

efly

DoF Blur Vertical Pass

Gaussian Blur Vertical

ref: http://rastergrid.com/blog/2010/09/efficient-gaussian-blur-with-linear-sampling/

Gaussian Blur Horizontal

Tree Trunk Rings

This is ported from https://github.com/lighttransport/procedural-eyeball-shader

Procedural Eyeball

flat tiling image

_____

Shading with solid colours, instead of simulating lighting

Two colour point light

tdhooper

While playing around I came up with this interesting effect. Whenever the object shrinks, the top or bottom of it appear to turn toward you.

Optical Effect

Cimer

Chromatic Abberation

tedajax

Sea Simulation based on "Seascape" by Alexander Alekseev

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