Talk:Petit Computer 3/@comment-14600979-20140525141701/@comment-15296152-20140525183952

Usual tile orientation (flipping vertically/horizontally), but that 90 degree rotation is something new, and quite unexpected. It's a feature not found in practically all 2D-based hardware that work off of tilemaps, which leads me to once again suggest that they are handling these backgrounds with the 3D hardward, using a polygon mesh with each dual-tri or quad in the mesh having texture coordinates.

If the "BG4 pieces" means the layer is split into 4 equal section for editing, then I have no problem with that, as that's how v2 works as well as pretty much all 2D tile-based hardware, as update routines handle writing in new tiles to make it seamless. However, it is still under the needed requirements when operating a Mode7-like projection which they've mentioned before. On the SNES and GBA, they used a 1024x1024 pixel layer (in terms of 8x8-pixel tiles, 128x128 tiles), so I wonder how they plan to deal with that.