#define get_scanlines(a, b, c) scanlines[(a)*total_triangles*3+(b)*3+c]
#define get_scanline_coords(a, b, c) scanline_coords[(a)*total_triangles*4+(b)*4+c]
#define max(x, y) ((x)>(y)?(x):(y))
#define min(x, y) ((x)<(y)?(x):(y))
#define abs(a) ((a)>0?(a):-(a))
#define round(x) (((x) - (long)(x) < 1) ? (long)(x) : ((long)(x) + 1))
#define square(x) ((x)*(x))

//calculations kernel
#define triangle get_global_id(0)
//put the coordinates for the point of intersection of lines (not segments) p1->p2 and p3->p4 in x, z. If there is no intersection it sets z to -1
#define intersect(x, z, x1, z1, x2, z2, x3, z3, x4, z4)\
		m1 = (z2 - z1) / (int)(x2 - x1);\
		b1 = z1 - m1*x1;\
		m2 = (z4 - z3) / (int)(x4 - x3);\
		b2 = z3 - m2*x3;\
		if (abs(m1 - m2) <= 1 && abs(b2 - b1) <= 1) {\
			x = x1;\
			z = z1;\
		}\
		else if (abs(m1 - m2) <= 1) {\
			z = -1;\
		}\
		else {\
			x = 1;\
			z = 1;\
		}

void kernel project_line(global long *triangles, global int *scanlines, global long *scanline_coords, const int width, const int fl, const int total_triangles) {
	//projecting
	int b=3;
	long x, y, z, x1, y1, z1, x2, y2, z2, x3, y3, sx, sz, ex, ez, rx, rz;
	int p, linked;
	int level = 0;
	int m1, m2, b1, b2;
	// only one point is behind the screen
	if (fl) {
		z = fl;
		x = fl;
		z1 = fl;
		x1 = fl;
		y1 = fl;
		x3 = fl;
		y3 = fl;
		linked = 1;
	}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
		if (linked) {
			if (level < y3) {
				if (y) sx = min(x, x3);
				if (x3) sz = min(sx, y3);
			}
		}
		if (ex) {
			if (ex < width) {
				get_scanlines(level, triangle, 1) = ex;
			}
			else {
				intersect(rx, rz, (sx - width / 2)*sz / fl, sz, (ex - width / 2)*ez / fl, ez, 0, 0, width / 2, fl);
				get_scanline_coords(level, triangle, 2) = rx;
			}
		}
}