Yes. That’s what the official v4 API suggest. But unfortunately, in practice, we need to modify a lot more than that. Even when you have 10-20 objects that you’d want to integrate to the WEB and support design changes or other client requests it becomes impossible to do.
Let’s say, we take one object and tune everything, lighting (env and all of the lights), initial camera position, a bunch of post processing parameters and then need to replicate it to all of the models, so the web store looks consistent. Then clients comes over and asks to adjust some things, again, you do it on a single mode but then want to use the same settings for another set of models.
There are also cases when it’s not that trivial. Let’s say, we make an adjustment to some post effects like tone mapping, to make the background look a certain way, but then need to re-adjust material properties accordingly, for instance, multiply all current Albedo and Specular by 0.75. Meaning, it can’t be just a simple kind of preset but rather something that also relying on the way a set of models are setup.
Ideally, we should be able to modify anything you can modify by hand on Sketchfab when setting up a model with an API. Otherwise I am not sure how you can organize the whole e-commerce integration in a production oriented way.
It also doesn’t help that some things like light position and directions or even orientation itself doesn’t have any numeric representation. You can only modify those things with gizmos but you can’t copy-paste values from a different model.
It looked like API v2 hack was the best solution before it stopped working.
Then there was less ideal but kind of usable script for Tampermonkey: