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This script for 010editor converts Wrath of the Lich King .M2 and .SKIN files to Cataclysm, Mists of Pandaria and Warlords of Draenor. Supports: -Cameras. -Particles. -Animation flags. -Projected shadows. -Transparency flags. -Blend mode overrides. Also includes: -Batch file converter. -Shadow remover script. -Sequence flag remover script. -Skin template for 010editor with shadow batches added. DOWNLOAD Some notes and technical information: -make sure you are working on "OVR" mode before running the script. Projected shadows As you may know, projected shadows are stored inside the .skin file since Cataclysm. This script creates shadows for all texture units, including those with additive materials. If you want to remove the shadows from a specific geoset, just open the skin file with 010editor, run the skin template included inside the tools folder and delete the texture batch corresponing to that mesh. If you want to remove ALL shadows from a model, just use the "Cataclysm Shadow Remover" included in the tools folder (it's useful for stuff like fire or lights, that are not supposed to cast a shadow). As you can see, the glow, which is a billboarded square with addivite renderflag, is casting a shadow and the game can't handle shadows with additive materials. To remove it I selected its shadow batch, deleted it and reduced the shadow batch count by 1 in 010editor. More info in this video: Flying mount animations In WotLK, mounts use swimming animations for flying. Since Cataclysm, however, there are separate ids for swimming and flying since flying mounts can now be used as ground mounts and therefore swim. But, if a mount model doesn't have fly animations, the game will use its swimming animations. That's why this script doesn't duplicate them. It's not necessary. WotLK flying mounts should still work perfectly in Cata, MoP and WoD. Reflections This script doesn't convert reflections since there is no exact way to know when a texture unit is used for a reflection, glow, etc. So you must do it by hand. Just open your skin file, convert it to Cata+, go to the texunit with the reflection and change its shader to "144". Here is an example using "Creature\Murloc\Murloc00.skin": You can change the "texunit" and "texunit2" fields to "0" but it's optional since those fields are unused since Cataclysm, but just in case. Animation sequence flags Sequence flags are 128 digits bigger since Cataclysm. Without these flags some animation frames loop when they shouldn't and sequences don't blend correctly. This script fixes that problem and gives smoothness to the animations. If you want to remove the extra flags for some reason, just run the "Cataclysm Sequence Flag Remover" script included in the tools folder

Someone picked up the development, go >here< to follow the progress and send your issues Here is my multi converter, it can convert m2, wmo, adt, wdt and anim (7.3.5) from Legion to be used on wotlk (map can be visited with the client or edited with noggit). M2 using .skel are not supported. To use it just open it then drag and drop the files you want to convert (or a folder containing some, subfolder included) and click on "Fix", the files will be overwritten and it will delete the files that are unused on wotlk. If the .skin files are in the same folder they will be converted too. M2 already converted to LK format won't be converted again. As for WMO converting them multiple time won't affect them. ADT need their _tex0 and _obj0 counterpart to be converted. Warning: don't take the WDL files from blizzard, they have changed and causes wow error. Warning 2: the next releases of Noggit will require you to use the version 3.3 or newer, the m2 converted with the old versions were missing some data that Noggit now need, without it'll crash. What needs to be done : Fix forward flying animation for a few models Animation particles Set WMOs liquid types that correspond when the ID is too high Set fel liquid to green lava on adt for a better / more accurate look Some map might not look good because several effect like texture scaling that aren't there in wotlk, the 2 additional layers for texture introduced in wod, ... For those who want to report a problem : Tell me on which model(s) you've seen the problem and add screen(s), it help me fixing the problem faster. And send me your error.log where there are errors during the conversion !! And please use an external website to upload the screens because each time I upload a new version the screenshots in comments appear in the changelog for some reasons and I have to delete them which also delete them from the comments Thanks a lot to : All those who contributed / are contributing to the wiki, I couldn't have done it without this precious source of informations! Mjollna for her m2 converter and awesome ADT diagram! PhillipTNG for his m2 conversion script which helped me write mine in the beginning. Sources are now available, see last release.