Sketch 4 / Animate Points Attribute wrangle

animate_points.c

float amplitude = ch("amp");
float amp_scale = ch("amp_scale");

float noise_freq = ch("noise_freq");
float noise_offset = ch("noise_offset");
float time_speed = ch("time_speed");


for(float n = 0; n < 1; n += @increment)
{
    float base_noise_x = noise_offset + (noise_freq * @ptnum);
    float base_noise_y = noise_offset + (noise_freq * @ptnum);

    float timescale_x = @Time * time_speed;
    float timescale_y = @Time * time_speed;

    float noise_over_time_x = noise(base_noise_x + timescale_x);
    float noise_over_time_y = noise(base_noise_x + timescale_y);

    float offset_x = fit(noise_over_time_x, 0, 1, -0.5, 0.5) * amplitude * amp_scale;
    float offset_y = fit(noise_over_time_y, 0, 1, -0.5, 0.5) * amplitude * amp_scale;

    @P.x += offset_x;
    @P.z += offset_y;
}