I made some tildes loading .gifs

I made both of these with a combination of Shadron and Photoshop (for the rending of the animation into a gif).

Here's the source code:

#include <math_constants>

image Source = input() : filter(nearest), map(clamp);

glsl float quant(float val, float divisions) {
    return floor(val * divisions) / divisions;
}

// Yes I realize this could probably be done in a more shader-friendly way
glsl float triangle_wave(float x) {
    x = mod(x, 2.0);

    if (x >= 0 && x < 1) {
        return x;
    } else {
        return 2 - x;
    }
}

glsl vec4 tildes(vec2 pos) {
    float quant_x = quant(pos.x, 8.0);
    float deviation = triangle_wave(quant_x * 3.0 + shadron_Time / 3.0) / 3.0; // can substitute for sin()
    return texture(Source, vec2(pos.x, pos.y + deviation - 0.225));
}

animation Tildes = glsl(tildes, 256, 256);
export png_sequence(Tildes, "tildes/Tildes_?.png", 50, 6);

And the "Source" image that is used as the texture.