Question

我的更新功能是围绕视轴（滚动）添加旋转，这是随着时间的推移而增加的。我只想更改偏航和俯仰部分。

我的计算错误还是浮动精度？

m_orientation是我持有最终轮换的全球Quaterion。 Q是glm :: quat的类型。 V是glm :: vec3

return [this](glm::vec2 ls, glm::vec2 rs, double dTime) {
    auto rightVec = m_orientation * V(1, 0, 0);
    Q q1 = glm::angleAxis(-rs.x * (float)dTime, V(0,1,0)); // yaw   
    Q q2 = glm::angleAxis(rs.y * (float)dTime, rightVec); // pitch

    auto roll = glm::roll(m_orientation);
    printf("%f\n", roll);

    m_orientation = q1 * m_orientation;
    m_orientation = q2 * m_orientation;


    m_position += m_orientation * V(1, 0, 0) * ls.x * (float)dTime * sensitivity; //sidewards 
    m_position += m_orientation * V(0, 0, -1) * ls.y * (float)dTime * sensitivity; //forwards
    buildViewMatrix();
};

Answer 1

解决了2次更改

auto q2 = glm::angleAxis(rs.y * (float)dTime, V(1,0,0)); // pitch
m_orientation = q1 * m_orientation * q2;

Quaterion第一人称相机

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