nb points for 2D prediction

<img width="473" height="166" alt="Image" src="https://github.com/user-attachments/assets/5189baa1-07a1-479e-a472-b952be2d7bb7" />

Please allow the following values for both dimensions:

- 64
- 128
- 256
- 512
- 1024
- 2048
- 4096