@blanchsb Glad you enjoyed it! There is no unique way to proceed, so best is to remember each isolated basic case and adjust based on the target’s shader.
I refer to this tutorial, which describes a method to project a picture on any given surface wile preserving topology. If you haven’t watched it yet I recommend checking it as well to understand how it works. Since it requires quite a few steps, I wrote a python script (the one I refer to in the beginning) to skip all these steps. The script is available on the resources (QuickCaster addon).
Let me know if you ave any issue!
/Thibaut.