Here is my latest diversion. This is the bark of a Ponderosa pine tree near Camp Sherman, Oregon. I shot 26 photos with my Pixel 5a cell phone, then processed the photos with WebODM into a 3D model.

I did further processing in Blender to eliminate a few extraneous bits and then created an animation of the model.

Below is the animation I created using Blender. Click on the image to start the video, click “f” to view it full screen. Press “f” again to exit full screen mode (I suggest viewing it in full screen to really see it):

This model can also be seen in Sketchfab, a 3D viewer. Click on the image below, and after the model loads, click and drag to see it in 3D. Same as for the animation, press “f” to view it full screen and “f” again (or escape) to exit full screen mode: