k4a_calibration_2d_to_3d related

[myalos]

Hello.
In fastpointcloud example, why are not all points(512x512) valid? Is it because there are places in the image sensor that can not receive light?
`
k4a_calibration_2d_to_3d(
calibration, &p, 1.f, K4A_CALIBRATION_TYPE_DEPTH, K4A_CALIBRATION_TYPE_DEPTH, &ray, &valid);

        if (valid)
        {
            table_data[idx].xy.x = ray.xyz.x;
            table_data[idx].xy.y = ray.xyz.y;
        }
        else
        {
            table_data[idx].xy.x = nanf("");
            table_data[idx].xy.y = nanf("");
        }

`

[dasparli]

I can confirm that a point can be invalid because the field of view of the sensor is limited and so there is a check to ensure that the unprojected point is not outside the field of view.

[myalos]

Hi, happy to see you again! The confirm is what i need, thank you ! ^ v ^