在Y asix周围旋转相机没有制作AR面对相机vuforia原生android

时间:2018-05-23 07:21:28

标签: android matrix opengl-es vuforia android-augmented-reality

我正在使用vuforia制作AR视频应用。我希望我的视频应该是垂直的,当我在Y轴上移动相机时,我的AR视频应该是垂直的。我编辑了vuforia示例videoplayback并添加了后续代码,但我遇到了意想不到的行为。

Matrix44F inverse_view = SampleMath.Matrix44FInverse(Tool.convertPose2GLMatrix(trackableResult.getPose()));

                // line of sight
                Vec3F los = new Vec3F(-inverse_view.getData()[8], -inverse_view.getData()[9], -inverse_view.getData()[10]);
                Vec3F z_axis = new Vec3F(0, 0, 1);
                Vec3F x_axis = Vec3FNormalize(Vec3FCross(los, z_axis));
                Vec3F y_axis = Vec3FCross(z_axis, x_axis);

                float[] orientationMatrix = new float[]{
                        x_axis.getData()[0], x_axis.getData()[1], x_axis.getData()[2], 0,
                        y_axis.getData()[0], y_axis.getData()[1], y_axis.getData()[2], 0,
                        z_axis.getData()[0], z_axis.getData()[1], z_axis.getData()[2], 0,
                        0, 0, 0, 1
                };

                // calculate the model view projection matrix

                float[] viewMatrixVideo = Tool.convertPose2GLMatrix(trackableResult.getPose()).getData();

                float[] modelViewVideo = new float[16];
                Matrix.multiplyMM(modelViewVideo, 0, viewMatrixVideo, 0, orientationMatrix, 0);

                float[] modelViewProjectionVideo = new float[16];
                Matrix.scaleM(modelViewVideo, 0,
                        targetPositiveDimensions[currentTarget].getData()[0],
                        targetPositiveDimensions[currentTarget].getData()[0]
                                * videoQuadAspectRatio[currentTarget],
                        targetPositiveDimensions[currentTarget].getData()[0]);
                Matrix.multiplyMM(modelViewProjectionVideo, 0, projectionMatrix, 0, modelViewVideo, 0);

但是使用上面的代码我会像以下视频一样获得轮播:

https://www.youtube.com/watch?v=b032rThCseU

但我希望我的视频应该如下图所示旋转:

enter image description here

请帮助我。

0 个答案:

没有答案