Function randCircle

cpp/5_Domain_Specific/smokeParticles/ParticleSystem.cpp:169–178

random point in circle

// random point in circle
inline vec2f randCircle()
{
    vec2f r;

    do {
        r = vec2f(sfrand(), sfrand());
    } while (length(r) > 1.0f);

    return r;
}

// random point in sphere
inline vec3f randSphere()