protected boolean intersect(Ray r, double rayStart, double rayEnd, double[] hit) {
UnivariatePolynomial x = new UnivariatePolynomial(r.o.x, r.d.x);
UnivariatePolynomial y = new UnivariatePolynomial(r.o.y, r.d.y);
UnivariatePolynomial z = new UnivariatePolynomial(r.o.z, r.d.z);
UnivariatePolynomial p = dcsd.coefficientCalculator.calculateCoefficients(x, y, z);
p = p.shrink();
hit[0] = (float) dcsd.realRootFinder.findFirstRootIn(p, rayStart, rayEnd);
return !java.lang.Double.isNaN(hit[0]);
}