#include <stdio.h> #define ITERATION 7 // max 7 #define MARGIN 2 #define FGCOLOR "100;100;100" #define BGCOLOR "0;0;0" #define P(width, lines) for (int i = 0; i < lines; i++) printf("#0!%d~$-", width); void tri(unsigned long line) {     int last = 0;     while (line) {         if (line & 1) {             printf("_we`ew");         } else             printf("%c!5?", last ? '_' : '?');         last = line & 1;         line >>= 1;     }     printf("_$-"); } int main(void) {     int lines_left = 1 << (ITERATION - 1);     int bgwidth = (lines_left + 2 * MARGIN) * 6;     unsigned long line = 1;     printf("\x1bPq#0;2;"BGCOLOR"#1;2;"FGCOLOR);     P(bgwidth, MARGIN);     while(lines_left--) {         printf("#0!%d~$!%d?#1", bgwidth, 3 * lines_left + 6 * MARGIN);         tri(line);         line ^= line << 1;     }     P(bgwidth, MARGIN);     printf("\x1b\\");     return 0; }

실행 결과: stdout으로 sixel 이미지 출력

확인하려면 sixel 지원 터미널이나 png변환을 위한 imagemagick이 필요함