Ok guys this is a guide to editing enviroments its kinda long.
here we go.
remember when you create a new MPQ archive save it in WoW data folder
and name it "patch-x.mpq" remember to replace x with a number 3-9.
First you need MyWarcraftStudio and the BLP converter in the stickied post by idusy and Model Edit.exe.
OK first open up MWCS and open common.mpq or any other MPQ with the file you wish to edit.
Now open "tileset" then find the place you wish to edit and open the folder.It should look like this.
now find the blps you want to edit.(all the blps in the tileset folder are for the enviroment on the ground not trees or bushes or campfires etc...)
Right click em then click "extract file to" and extract it to the folder with the BLP converter.now just go to the folder and drag the blp file over the
converter.exe and a png version should pop up.like in this screenshot.
In that screen there is durotardirt.blp and durotardirt.png.You can make custom
blps using photoshop,paint,etc...or you can switch it with other
blps like the sand in tanaris or dead grass in plaguelands.
first i will tell you how to make custom blps.First open the png
in a program i mentioned earlier(photoshop,paint,etc...).like this.
Ive opened mine in photoshop.Now its time to edit.Do what you want
with it.write your name,color it up,or just screw it up.Once your done
messing with it save it over the original png.now drag it over the
converter.exe and a new blp should pop up.If not then the original blp was edited
with your edits.now go back to MWCS and find the blp you started with.
right click it and press copy treepath.Make sure its selected when you press copy treepath
or it will not work.now go up to pack at the top and press create "create MPQ archive".
Dont forget to save it in the WoW data folder as "patch-x.mpq" just replace x with #3-9.
Now go up to pack again and press "add file to archive" then browse and find the edited blp and
add it.Once added select it and right click it then press "rename file" and press ctrl-v.
now press ok.Now go back up to pack and click "save and close archive".Use model edit.exe to go in
and check out your new place like this except how you edited it.
Now im gonna show you how to replace blps like i mentioned earlier like durotar landscape to tanaris or plagueland landscape.
First you dont need the converter.exe for this.open up MWCS and find the original file.
then open up a different tileset folder like tanaris or plaguelands.Once its opened
find the blp you would like to replace the original one with and extract it somewhere.
Now go back to the original blp and click "copy treepath" on it then go up to pack
and press create new MPQ archive.This usualy helps with 2 MWCS running if your editing more then one blp.
Save the MPQ archive in WoW data folder and name it "patch-x.mpq" and remember to rename the x to a number 3-9.
now go to pack and click "add file to archive" and add the blp you wish to replace the original blp with.Now select that blp
and press "rename file" then press ctrl-v.Now press ok and guess what youer done!Unless your editing more then one and dont forget to go up to pack and press save and close archive
blp with this.(if you are editing more then 1 blp then it helps with 2 MWCS running)
and once your done you should end up with something like this
congratulations you should be finished.Have fun with these edits.Ask any questions and i'll answer as best i can.Im proud of myself (first guide ;D).