int baseMu2 = 1;
drawJuliaSlice(gl, baseMu1, baseMu2, mu[0], mu[1]);
int baseMu3 = width - MU_RECT_SIZE - 2;
int baseMu4 = MU_RECT_SIZE + 2;
drawJuliaSlice(gl, baseMu3, baseMu4, mu[2], mu[3]);
gl.glDisable(GL_BLEND);
gl.glColor3f(1, 1, 1);
int mu1 = (int) (baseMu1 + MU_RECT_SIZE * (mu[0] + 1.5f) / 3.f);
int mu2 = (int) (baseMu2 + MU_RECT_SIZE * (mu[1] + 1.5f) / 3.f);
gl.glBegin(GL_LINES);