def rgb_to_sm64(r, g, b, alpha=1): # r,g,b in 0-255, alpha 0 or 1 r5 = round(r / 8) g5 = round(g / 8) b5 = round(b / 8) r5 = max(0, min(31, r5)) g5 = max(0, min(31, g5)) b5 = max(0, min(31, b5)) a1 = 1 if alpha > 0 else 0 return (a1 << 15) | (r5 << 10) | (g5 << 5) | b5
For actual ROM patching, always verify byte order (big-endian) and use checksum correction tools like n64crc . sm64 color codes
Super Mario 64 (SM64), a landmark title in 3D game design, employs a unique system of hexadecimal color codes to define object palettes, vertex colors, and environmental lighting. This paper examines the structure, application, and practical manipulation of SM64 color codes. We analyze the 16-bit RGBA5551 format used in the game’s binary data, differentiate between geometric and texture-based coloration, and provide a technical guide for modifying these values via ROM hacking. Finally, we discuss the implications for speedrunning (e.g., "Color Codes" as arbitrary code execution triggers) and asset replacement. def rgb_to_sm64(r, g, b, alpha=1): # r,g,b in
| Object | Hex Value | RGB (5-bit) | Visible Color | |--------|-----------|--------------|----------------| | Red Cap | 0xF800 | 31,0,0 | Bright Red | | Yellow Coin | 0xFFE0 | 31,31,0 | Yellow | | Blue Sky Box | 0x001F | 0,0,31 | Blue | | Green Pipe | 0x03E0 | 0,31,0 | Green | | White Cloud | 0x7FFF | 31,31,31 | White | | Black Shadow | 0x0000 | 0,0,0 | Black (transparent if alpha=0) | We analyze the 16-bit RGBA5551 format used in
: Modern tools like Saturn or web-based generators allow users to create and edit these codes visually in real-time. Popular Character Codes
: Machinimists use these codes to portray unique original characters (OCs) or existing Nintendo characters like Luigi, Wario, and Waluigi without needing a full custom 3D model.