I am looking to change the camera values using a js or api function to be able to modify the general camera or camera volume properties in the scene, like gamma, exposure etc.
Currently the official API does not allow changing camera parameters directly. There is a way to control views though: GitHub - shapespark/shapespark-viewer-api: JavaScript API for interacting with the Shapespark 3D scene.
Still, the ability to modify camera through API is a good idea, so we added it to our roadmap and will consider adding it to Shapespark next year.