Actions

SCHG

Sonic Heroes/Light Editing

From Sonic Retro

SCHG: Sonic Heroes
Main Article
Mechanic Editing

DOL Editing
EXE Editing
Music Pointers
Object Parameter Data
Relocatable Editing (PC)
File Offsets

Model Editing
Collision Format
Model Format
Level Editing

Camera Editing
Event Editing
ID list
Indirect Editing
Light Editing
Level List
Object Editing
Object Porting
Spline Editing
Texture Animation Editing
Visibility Editing

Particle Editing
Particle Editing
Sound Editing
Music List

Sound Editing
Voices

SCHG How-Tos

Custom Object Material Effect Tutorial
Level Editing Tutorial


Light layouts are stored in big endian sLL_light.bin (or stgLL_light.bin) files, where LL is the level number. On PC and Xbox, they are located in the /dvdroot folder. For Shadow the Hedgehog, the same format is used in little endian.

File layout

Each light entry is 0x34 bytes long, and there are 19 entries in each Heroes file, 16 for a Shadow file. Some entries may be blank for some stages, though they can be utilized by objects. The 0x34 bytes of each entry are divided into variables which occupy 4 bytes of space, for a total of 15 variables. They are either float32s, float16s, or U16s.

Light Entry

Float values should be between 0 and 1.0f although negative values and values over 1 will behave as logic would dictate. There's a hard limit on those, but I don't know what at this time. Rotations are zeroed out at -Z. Vertical rotation rotates up from this vector while horizontal rotation rotates right from it.

Number Type Description
0x0 Float Red Ambient
0x4 Float Green Ambient
0x8 Float Blue Ambient
0xC Float Alpha Ambient
0x10 Float Red Directional
0x14 Float Green Directional
0x18 Float Blue Directional
0x1C Float Alpha Directional
0x20 Float Unknown 0-1.0F Value
0x24 Float Unknown 0-1.0F Value
0x28 Float Unknown 0-1.0F Value
0x2C Float16? Unknown for 3rd set of floats?
0x2E Uint16 Vertical Rotation 0-360 Euler Angle. Will accept angles beyond 360.
0x30 Float16? Unknown for 3rd set of floats?
0x32 Uint16 Horizontal Rotation 0-360 Euler Angle. Will accept angles beyond 360.

References


Sonic Community Hacking Guide
General
SonED2 Manual | Subroutine Equivalency List
Game-Specific
Sonic the Hedgehog (16-bit) | Sonic the Hedgehog (8-bit) | Sonic CD (prototype 510) | Sonic CD | Sonic CD (PC) | Sonic CD (2011) | Sonic 2 (Simon Wai prototype) | Sonic 2 (16-bit) | Sonic 2 (Master System) | Sonic 3 | Sonic 3 & Knuckles | Chaotix | Sonic Jam 6 | Sonic Adventure | Sonic Adventure DX: Director's Cut | Sonic Adventure DX: PC | Sonic Adventure (2010) | Sonic Adventure 2 | Sonic Adventure 2: Battle | Sonic Adventure 2 (PC) | Sonic Heroes | Sonic Riders | Sonic the Hedgehog (2006) | Sonic & Sega All-Stars Racing | Sonic Unleashed (Xbox 360/PS3) | Sonic Colours | Sonic Generations | Sonic Forces
Technical information
Sonic Eraser | Sonic CD (prototype; 1992-12-04) | Sonic 2 (Nick Arcade prototype) | Dr. Robotnik's Mean Bean Machine | Sonic Triple Trouble | Tails Adventures | Sonic & Knuckles Collection | Sonic Crackers | Sonic 3D: Flickies' Island | Sonic R | Sonic Advance | Sonic Advance 3 | Sonic Battle | Sonic Shuffle | Shadow the Hedgehog | Sonic Rush | Sonic Lost World
Legacy Guides
The Nemesis Hacking Guides The Esrael Hacking Guides
ROM: Sonic 1 | Sonic 2 | Sonic 2 Beta | Sonic 3

Savestate: Sonic 1 | Sonic 2 Beta/Final | Sonic 3

Sonic 1 (English / Portuguese) | Sonic 2 Beta (English / Portuguese) | Sonic 2 and Knuckles (English / Portuguese)
Move to Sega Retro
Number Systems (or scrap) | Assembly Hacking Guide | 68000 Instruction Set | 68000 ASM-to-Hex Code Reference | SMPS Music Hacking Guide | Mega Drive technical information