So, how can something like Heroforge bang out 3d models for free?
Again, people really, REALLY need to scale back their expectations. This is not going to be AAA level 3d graphics. It's just not. There's no way they're going to go that route. It's going to be simple, 3d models, little or no animation, texturing will be very basic and rudimentary.
But, again, my point was that we get a Monster Manual which has hundreds of pieces of art in it, for about 40 bucks. The idea that they're going to charge you several hundred dollars for the models (someone mentioned paying dollars/model) just to use the Monster Manual in the VTT is ridiculous. It's not going to happen.