Function SliceFrustum

engine/Poseidon/Graphics/Shadow/ShadowMath.cpp:233–242

}

std::array<Vec3, 8> SliceFrustum(const std::array<Vec3, 8>& corners, float t0, float t1)
{
    std::array<Vec3, 8> out;
    for (int i = 0; i < 4; i++)
    {
        out[i] = Lerp(corners[i], corners[i + 4], t0);
        out[i + 4] = Lerp(corners[i], corners[i + 4], t1);
    }
    return out;
}

Mat4 LightView(const Vec3& sunDir, const Vec3& up)
{