Editing Palletes with Hex Below I am going to explain how to edit palletes using hex without the use of any utilies at all. I got the below information while restoring my palletes due to the hack crashing. Now lets get started, shall we? OK now to edit palletes you'll need to know the locations of them in the ROM. (I obtained the below using Hivepal). If you need to know the left is pallete name and the right is the offset of the pallete. Sega Sonic 2902 Title Screen (Sonic) 133EC Title Screen (Tails) 2942 Title Screen (Main) 1340C Title Screen Water 1E5A Sonic and Tails 29E2 Sonic to Super Sonic 2246 Super Sonic 2276 Title Cards 2A02 Emerald Hill 2A22 Emerald Hill/Aquatic Ruin Rotating Water 1E7A Wood 2A82 Wood Conveyor Belts 1F1A Metropolis 2AE2 Metropolis Cycle #1 1F2A Metropolis Cycle #2 1F36 Metropolis Cycle #3 1F42 Wing Fortress 2B42 Wing Fortress Fire Cycle 20A2 Hill Top 2BA2 Hill Top Lava 1E9A Hidden Palace 2C02 Hidden Palace (Sonic & Tails Under Water) 2C62 Hidden Palace Underwater Tiles Pallete 2C82 Hidden Palace Water Cycle 1F56 Hidden Palace Underwater Cycle 1F66 Oil Ocean (Do not edit or you'll get a huge mess unless you know how to fix it!) 2CE2 Oil Ocean Oil 1F76 Mystic Cave 2D42 Mystic Cave Lanterns 1F86 Casino Night 2DA2 Casino Night Cycle 1 1F8E Casino Night Cycle 2 1FA0 Casino Night Cycle 3 1FB2 Casino Night Cycle 4 1FC4 Chemical Plant 2E02 Chemical Plant Sonic & Tails Underwater 2E62 Chemical Plant Underwater 2E82 Chemical Plant Underwater Sonic to Super Sonic 22C6 Chemical Plant Underwater Super Sonic 22F6 Chemical Plant Cycle 1 2022 Chemical Plant Cycle 2 2058 Chemical Plant Cycle 3 2082 Chemical Plant Cycle 4 20E2 Death Egg 2EE2 Aquatic Ruin 2F42 Sonic & Tails Underwater (Aquatic Ruin) 2FA2 Aquatic Ruin Underwater 2FC2 Sonic to Super Sonic Underwater (Aquatic Ruin) 2346 Aquatic Ruin Underwater Super Sonic 2376 Sky Chase 3022 Menus 30E2 Special Stage Main 3162 Special Stage Sonic 3182 Special Stage Tails 31A2 Special Stage 1 31C2 Special Stage 2 31E2 Special Stage 3 3202 Special Stage 4 3222 Special Stage 5 3242 Special Stage 6 3262 Special Stage 7 3282 Special Stag 1 2p 32A2 Special Stage 2 2p 32C2 Special Stage 3 2p 32E2 Special Stage Chaos Emerald 35F92 Special Stage Results Screen 3302 Emerald Hill Icon 9880 Metropolis Icon 98A0 Hill Top Icon 98C0 Hidden Palace Icon 98E0 Oil Ocean Icon 9900 Mystic Cave Icon 9920 Casino Night Icon 9940 Chemical Plant Icon 9960 Aquatic Ruin Icon 9980 Sky Chase Icon 99A0 Wing Fortress Icon 99C0 Death Egg Icon 99E0 Special Stage Icon 9A00 X 2 Player Versus Icon 9A20 Sound Test Icon 9A40 Ending Grey Cutscenes AD1E Ending Main ACBE Ending Sonic AC7E Ending Tails AC9E Ending Super Sonic AD3E Unknown 1 3082 Unknown 2 30A2 Unknown 3 30C2 Now you'll need just a sonic 2 ROM and a hex editor. Now to exlplain how to edit: First off leave that 0 there as the very first nibble on EVERYTHING! the last three nibbles are used as the RGB values. Now the higher you go the brighter the color. Like 0EEE would make a grey color 0000 would make black. 1EEE would most likely crash the ROM. Now if you use 0333 or 0111 it also won't work. You can only use even values. Even values are 0, 2, 4, 6, 8, A, C, and E. 1, 3, 5, 7, 9, B, D, and F don't work.Now when you reach the end of a pallete the bytes should be 0000 0000. Edit no further! If you edit any further than that you will be editing another level entirely. Now I'll say one more thing before you go away with new knowledge and start editing palletes. Now I'll explain what every nibble is. The first (should be 0) is I've no clue, the second is red, the third is green, and the last is blue.
Hey, that's cool though that he figured out how to find all of that. It would make a handy "pocket reference" or something right? I don't know what all of the numbers and letters mean exactly, but it looks important. :P
ICEknight explained it REALLY good this one time. Wish I had saved that. edit; Oh yeah! It was when Rika made the pallete hack of MJ's moonwalker.
Link here. Copy/paste here: =============== First of all, make sure your emulator can make screenshots using the correct colors. The RGB color values shouldn't be different than those the Genesis accepts (0,32,64,96,128,160,192,224). If you're using the latest versions of Gens, you should have the following lines in the GENS.CFG file: Code (Text): Contrast=90 Brightness=100 Then, take a look at the palette you want to find (in Gens, go to CPU->Debug->Genesis VDP) and make a screenshot of it. Now you'll have to find those colors in the ROM. The MegaDrive palettes have the format 0BGR (Zero, Blue, Green, Red), etc, so you must look at the color values, convert each of them to the byte the MD uses for it and go to the next color you want to find. The bytes used for each color value are as follows: Code (Text): E:224 C:192 A:160 8:128 6:96 4:64 2:32 0:0 So if you had a palette with the two consecutive colors "R:224 G:160 B:0" and "R:192 G:128 B:0" you should look for the hex values "00AE008C". =============== I also had to explain it a couple of times at the SEGA Emulation Forums, if I remember correctly. =|
Or do the easier way...Lightning's way that is short and easy... Let's see If I can explain... Code (Text): Needed stuff: --------------- -DebuGens -Hivepal -Hex Editor (In this I use Hex Workshop) -Open DebuGens and open your rom -Make it so the thing you want to change is on the screen -Dump the pallete with "GDump Palletes (CRAM)" => This dumps the colors onto an oh-so-easy to read, .bin file -Open your Hex Editor and HivePal -Open your .bin file that you dumped the palletes on your Hex Editor and HivePal -On HivePal count how many colors comes before the colors you want to change. -Then on your Hex Editor skip 4 numbers for every color that comes before your colors -Then with HivePal count how many colors there are you want to change -Then with your Hex Editor HIGHLIGHT 4 numbers for every 1 color you want to change (REMEMBER: You skipped some digits) -With the digits highlighted copy them -Then open the rom you want to change -Then find the digits you had highlighted and copied (ctrl+F opens find) -It may or may not find it and it may find more than one result -Open your rom you want to change in HivePal -Put the offset in and you should see the pallete which you wanted to change! Wow that was a lot of typing... This should work...I'm pretty sure I didn't miss a step... Lightning was my teacher on this...hope he doesn't mind me saying this or I'm screwed out of his kick ass teachings...
