Following up on their final build of RE2SHDP, RESHDP.com has released the first version of their RE3SHDP (Seamless HD Project). The pack is for the Gamecube version of the game and to be used on the Dolphin emulator.
The SHDP mod uses machine learning to upscale backgrounds. The pack also includes upscaled 3D model textures, menu elements, HR portraits, restored integrated texts and manually edited in-game screens.
You can download the mod on their website here.