downloadBook({
cellSize: 5,
fov: 39,
dist: 1.0,
alpha: 35.0,
beta: 20,
rows: 50,
cols: 77,
iterCount: 15,
formula: `MIN(
SQRT(POWER(SQRT(POWER(x, 2) + POWER(z, 2)) - 0.3, 2) + POWER(y - 0.18, 2)) - 0.02,
SQRT(POWER(x, 2) + POWER(y, 2) * 2.5 + POWER(z, 2)) - 0.4,
MAX(
x + y - 0.15 - 0.05 - 0.5,
- (y) + 0.19 - 0.1,
SQRT(POWER(SQRT(POWER(x - 0.55, 2) + POWER(y - 0.09, 2)) - 0.1, 2) + POWER(z - 0.1, 2)) - 0.04
),
MAX(
-(- (y) + 0.19 - 0.1),
SQRT(POWER(SQRT(POWER(x - 0.35, 2) + POWER(y - 0.09, 2)) - 0.1, 2) + POWER(z - 0.1, 2)) - 0.04
),
SQRT(POWER(x, 2) + POWER(y - 0.27, 2) + POWER(z, 2)) - 0.05
)`,
})