polarcoord.h

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#pragma once
 
#include "base/angle.h"
#include "base/vec3.h"
 
namespace eu
{
    struct Random;
 
    // source: http://mathworld.wolfram.com/SphericalCoordinates.html
    struct PolarCoordinate
    {
        Angle azimuthal; // longitude, 0-2pi
        Angle polar; // zenith, colatitude, 0-pi
 
        PolarCoordinate(float azimuthal01, float polar01);
 
        [[nodiscard]] static PolarCoordinate create_random(::eu::Random* random);
 
        [[nodiscard]] unit3f to_unit_vector() const;
    };
 
    unit3f get_random_unit3(Random* random);
 
}