fixed cameras on COS

[ckrsls]

Hi, thanks for this great add-on.
I wonder if I could set fixed mutiple cameras to render a dynamic scene using the Camera on Sphere method?

[maximeraafat]

Hi @ckrsls, I am not exactly sure about what you are trying to achieve, but the Camera on Sphere method is not well suited for being used with prefixed cameras. The COS method will render Frames amount of training frames sampled from the BlenderNeRF Sphere, where the camera position will change randomly according to the timeframe.

However, the scene will dynamically change alongside the BlenderNeRF capturing process. More precisely, if you have an animated scene key-framed from frame 1 to 100, and you run one of the methods (SOF, TTC or COS) for the same amount of frames, the rendered frames will capture the changes in your scene.

In your specific case, you might want to consider manually fixing a few cameras (say N cameras), and run for instance the TTC method for each camera separately on T frames. This will give you a set of N datasets (one per camera), each containing one transforms_train.json file with T frames. The frames will have captured the dynamic scene.

Hope this answers your question :)