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In this Discussion
- jeremydouglass December 2017
- kfrajer December 2017
Answers
This is an overlapped positive and negative gaussian curve with different amplitudes drawn either using multiple PGraphics (expensive) or applying tint to the main sketch before drawing a new curve (not tested btw, just an observation)
Kf
Some forms of visual noise with a certain "look" are byproducts of the display media they are associated with -- for example, CRTs. You might be interested in this in-depth discussion on approaches to CRT simulation:
The interesting thing about this kind of approach is that once you the image filtering simulation in place then you can use it for any signal processing -- sending pure static at the screen with a simple random number generator will create some of the ghosting / color separation / banding etc. that is also present in "clean" images.