does it have any video tutorials for this?

I install the package and the shows the error.

Thank you in advance for your great work for this add-on.

I'm trying to import model and camera information from ContextCapture into Blender, and use CPP for painting texture manually. I managed to assign all camera calibration/distortion parameters via script, except principal point.

The unit ContextCapture used for principal point is "image coordinates", while the parameter used in CPP is "mm".The pop-up info for principal point says "Deviation of the camera principal point in millimeters w.r.t 35mm film format". But it seems I failed to convert it right. The photos cannot align with the model perfectly.

The formula I used to convert principal point coordinates is:
px = (px' - cx) * sensor_width / image_width
py = (py' - cy) * sensor_height / image_height
where
(px, py): the coordinates of principal point, unit: mm
(px', py'): the coordinates of principal point in image plane, unit: pixel
(cx, cy): the coordinates of center point in image plane, unit: pixel
unit of sensor_width/sensor_height: mm
unit of image_width/image_height: pixel

How can I convert the coordinates w.r.t 35mm film format? Any advice is appreciated. Thank you!

I have been trying to follow your video tutorial, but it looks absolutely nothing like this version here on Github. I do the following:

1. Export FBX from RealityCapture.
2. Import FBX into Blender 2.83.
3. Attempt to locate Camera Painter in Scene Settings, but it is only visible in Tool Settings.
4. Select Source Images directory and click "Bind All Camera Images".
5. Open the Texture section and under Textures, click + to add new Base Color texture.
6. Set texture height and width to 8192, color to black, and uncheck Alpha.
7. Click the Setup Context button. The view changes to Texture Draw with images loaded in cameras.
8. Ensure that the new texture is selected (and the whole mesh is black).
9. Click on camera origin of choice, and select "Set Active". A striped rectangle is now surrounding the projection area.
10. Move brush over the texture / mesh and see that the image is being projected in the brush.
11. Left-mouse click to try to paint with brush and "image-colored" brush freezes, but brush outline remains mobile.
12. Release left mouse button, and nothing is painted.

I have tried every possible combination, CTRL-click, Shift-click..... and even changing the viewport mode to material, texture, vertex. There is absolutely nothing I can do that will allow painting with your tool on a mesh. Do you have any ideas why this may be happening and if there is any advice how to get a result? We've been struggling with this for nearly a week now with a wide variety of datasets. This tool was the only one that showed any promise, if we could only get it working.