How to determine the volume of a mound of fine-grained material from photographs?

Question

Photo

There is a pile of sand (or other) indoors, it is possible to take pictures of it from any position.
How to determine the volume (mass) of the material without resorting to the use of other sensors, tools, etc.
Presumably, it is necessary to use photogrammetry methods, but from which side to approach them, what to read, what software to use, etc. is not known! I would be very grateful for your help!

Answer 1

AgiSoft Photoscan - there are lessons (directly about embankments and their volumes) in Russian on their own website.

Answer 2

Somehow strange on the same day:
https://geektimes.ru/company/dronk/blog/272006/