Rotozoomer 264 byte

//Rotozoomer 264 byte
//Fastled 16x16 rgb led matrix demo
//Yaroslaw Turbin, 25.11.2020
//https://vk.com/ldirko
//https://www.reddit.com/user/ldirko/

//for one tweet codegolf competition
//https://www.reddit.com/r/FastLED/comments/jyly1e/challenge_fastled_sketch_that_fits_entirely_in_a/
//https://twitter.com/skullctf/status/1329474477185445890

//look how it look in online emulator:
//https://wokwi.com/arduino/projects/283190606061109768

#include <FastLED.h>
CRGB d[256];byte i,l[256];float a;void setup(){LEDS.addLeds<WS2812,3,GRB>(d,256);}void loop(){l[i]=sin8(i%16*16)/2+sin8(i)/2;d[i]=CHSV(l[abs8(i%16*sin(a)+i/16*cos(a))%16*16+abs8(i%16*cos(a)-i/16*sin(a))%16],~0,~0);if(!++i){LEDS.show();a-=.1;}}