You can download my Palette package which includes many assets (some mine, some I've downloaded).
https://utils.dissonant.info/td_package/.
also see my youtube channel which has some Touch Designer tutorials, specifically:
A movie player with scrub controls, looping, and the ability to extract clips. Download / Guide
A flexible system for playing video clips in sequence or randomly, and swapping between effects. Driven by a desire to have a more directed approach to sequencing in TD (like in Premiere). Download / Guide
A fork of td-shadertoy which has less boilerplate. Imports single-pass and multi-pass shaders from Shadertoy.
An example of reading / writing arbitary pixels with Python.
| grows the colored pixels outward
Dilates in a feedback loop, with adjustable brightness falloff. A fast pseudo-SDF.
Makes a sequence of waves, each with a different color. Optionally animated.
An example of how Mask under Wave might be used
A convoluted example of how to seed data into a shader using Python -> DATs -> CHOPs
Recolors an image according to a provided palette. Used in conjunction with Colour Lovers Picker (a free third party utility).
Feedback + Edge Detect = Fun
A lo-fi dithering effect. Converted from ShaderToy; not my original work.
A lo-fi dithering effect. Converted from ShaderToy; not my original work.
A simple chromatic aberration effect
Changes all colored pixels to white and everything else to black. Sets alpha to 1 everywhere.
Simple utility which sets color to white where alpha is greater than 0, and sets color to black otherwise.
Primitive Chromakey, converts selected color to black / transparent with an adjustable similarity threshold
Simple utility which sets color to white if its luminance is greater than a threshold, and black otherwise.
Simple utility which copies alpha from one image to another. Sets color to black where alpha is greater than 0.
Flip-flips between -1 and 1 whenever the input passes some threshold. Can optionally throttle input to prevent rapid flipping.