Java 摄像机旋转

和我一样，我设法在opengl和jogl中创建了一个小太阳系：） 现在我想旋转相机，从不同角度显示它。
我设法旋转立方体，但它们的运动平面保持不变

GL3 gl=drawable.getGL（）.getGL3（）

//定义

public static Mat4 lookAt(Vec4 eye, Vec4 at, Vec4 up) {
    final Vec4 eyeneg = eye.neg();

    final Vec4 n = VectorMath.normalize(eye.sub(at));
    final Vec4 u = VectorMath.normalize(VectorMath.cross(up, n));
    final Vec4 v = VectorMath.normalize(VectorMath.cross(n, u));
    final Vec4 t = new Vec4(0, 0, 0, 1);
    final Mat4 c = new Mat4(u, v, n, t);

    return c.mul(MatrixMath.translate(eyeneg));
}
public static Mat4 lookAt(float x, float y, float z, Vec4 at, Vec4 up) {
    final Vec4 eye = new Vec4(x, y, z, 1.0f);
    return lookAt(eye, at, up);
}

检查jogl的PMV矩阵

对于摄像机：

pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
pmvMatrix.glLoadIdentity();
pmvMatrix.gluPerspective(fov, aspect, zNear, zFar);
pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
pmvMatrix.glLoadIdentity();
pmvMatrix.glRotatef(-pitch, 1, 0, 0);
pmvMatrix.glRotatef(-yaw, 0, 1, 0);
pmvMatrix.glRotatef(-roll, 0, 0, 1);
pmvMatrix.glTranslatef(-position.x, -position.y, -position.z);
pmvMatrix.update();

固定功能：

gl.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
gl.glLoadMatrixf(pmvMatrix.glGetPMatrixf());
gl.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
gl.glLoadMatrixf(pmvMatrix.glGetMvMatrixf());

着色器：

GLUniformData pmvMatrixUniform;

初始化代码

PMVMatrix pmvMatrix = ...;
state.attachObject("pmvMatrix", pmvMatrix);
pmvMatrixUniform = new GLUniformData("pmvMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf());
state.ownUniform(pmvMatrixUniform);
state.uniform(gl, pmvMatrixUniform);

显示代码

state.uniform(gl, pmvMatrixUniform);

state.uniform(gl, pmvMatrixUniform);