不容易啊，搞了好几天，几乎重看了一遍，3d数学基础，写的不对的一定得指出来哦， 原贴地址:

可以旋转，但角度（轴）还不对（x轴除外）

-(void)update:(ccTime)time {        CCCamera *cam = [self camera];        if (nil == cam) {        NSLog(@"Call Camera faild!");        return;    }        Document* doc = [Document sharedDocument];        kmVec3 center = {0, 0, -1};     kmVec3 eye = {0, 0, 0};    kmVec3 up = {0, 1, 0};        //kmVec3Subtract(¢er, &eye, ¢er);        // 得到陀螺仪数据    float yaw = (float)(CC_RADIANS_TO_DEGREES(doc.motionManager.deviceMotion.attitude.yaw));    float pitch = (float)(CC_RADIANS_TO_DEGREES(doc.motionManager.deviceMotion.attitude.pitch));    float roll = (float)(CC_RADIANS_TO_DEGREES(doc.motionManager.deviceMotion.attitude.roll));        // 构建摄相机矩阵    kmMat4 camMat;    kmMat4Identity(&camMat);        // 构建旋转矩阵    kmQuaternion vec4;    kmMat4 rotaMat;    kmQuaternionRotationYawPitchRoll(&vec4, yaw, pitch, roll);    kmMat4RotationQuaternion(&rotaMat, &vec4);        // 构建平移矩阵    kmMat4 transMat;    kmMat4Translation(&transMat, 0, 0, 100);        // 矩阵变换    kmMat4Multiply(&camMat, &camMat, &rotaMat);    kmMat4Multiply(&camMat, &camMat, &transMat);        // 用最终的矩阵变换相应的点    kmVec3Transform(¢er, ¢er, &camMat);    kmVec3Transform(&up, &up, &camMat);    kmVec3Transform(&eye, &eye, &camMat);        [cam setEyeX:eye.x eyeY:eye.y eyeZ:eye.z];    [cam setCenterX:center.x  centerY:center.y centerZ:center.z];       [cam setUpX:up.x upY:up.y upZ:up.z];}