An experiment on regular lines and feedback effect.
The first version of this effect was distorting the lines geometries in CPU, using ImprovedNoise. I moved the code to a shader.
The lines are distorted by calculating the 3D value of a perlin noise, and calculating the normal from the gradient in that point of the field. The vertices are pushed along that normal, creating inflated distortions.
The lines are rendered into a buffer that has a version of itself drawn on it, slightly upscaled and faded, to create the feedback effect.
A final pass applies FXAA, vignetting, noise and gamma correction.
Inspired by this image.