Well, lots of ways to do it. Of course you can save bytes by reducing resolution, but that is true for any technique. But, the 'write to RAM" approach is pretty empowering. For one thing, you can do local updates anywhere in the image without having to resend the whole curve. Plus you can use a...

Why not use LINE_STRIP ? then you would just need to pass the coordinates of each vertex and the EVE engine would join them up, ie 4 bytes per point. Have you read the programmers guide ? https://brtchip.com/wp-content/uploads/Support/Documentation/Programming_Guides/ICs/EVE/BRT_AN_033_BT81X_Series...

I faced a similar problem and explored many approaches. What I settled on was to create an empty image in gRAM and to directly write the pixels of the curve into the image at the appropriate addresses. For some image formats, this is only one byte/pixel, so it can be quite fast. Note that changes ma...

I often find it most efficient to directly write pixels into an image in RAM_G and display it as an image. You can draw anything you like and update it dynamically.