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Hab das HL² SDKangeguckt und das gefunden.
http://developer.valvesoftware.com/wiki/SMD_file_format
Softimage|XSI Exp for Half-life 2
All of the models in Half-Life 2 were created with Softimage|XSI From Avid, A free version Softimage|XSI EXP, especially tailored to created content for the Source engine is available at www.softimage.com/products/exp/HL2/ , there you’ll fine tutorials, forums, and other resources for getting started with Softimage|XSI EXP. In addition to tutorials found in XSI EXP's net view, www.xsibase.com and www.edharris.com also offer great resources for beginning modelers.
.SMD files
.SMD files are exported from XSI through the file/export menu, they come in three “flavors”. The Reference SMD file is a complete snapshot of the model, including its geometry, its skeletal structure, its texture, and the links between its mesh vertices and its skeleton. Reference .SMDs do not contain any animation data -- they produce only a static image of the complete model at one point in time.
The Physbox .SMD is the volumes that the physics engine used to calculate collisions, and any links between it’s verticies and the skeleton.
Animation .SMDs, on the other hand, contain only animation data and enough skeletal information for the StudioMdl program to be sure that the animation data matches the skeleton of the reference model. As you can see any animated model will require at least two .SMDs – and a glance at the Half-Life source files in the SDK will show you that most models include a very large number of animation files. Most models however will use only a single reference .SMD.
.QC files
It may be helpful to think of the .QC files as a kind of table of contents for model projects: the .QC provides a complete list of all the assets which will be included in a finished model. The primary function of the .QC is to tell the StudioMdl program where to find textures and SMD files.
The QC is also the place where game-engine data is specified. For example, the QC file tells the engine where to place effects like glow sprites or smoke, what animations correspond to the various AI activities, and when certain sounds should be played.
StudioMDL
Studiomdl.exe is the command-line program that actually creates the Half-Life model files. It takes the name of a .QC file as a command parameter and uses the .QC to find the relevant .SMD and texture files. The program also provides feedback on the amount of memory used for the completed model’s geometry, textures, and animation data, which can be useful in debugging and optimizing your models. See Compiling Models Basics for information on how to compile models with studiomdl.exe.
The finished product: .MDL files
The final output the process is a Half-Life model (.MDL) file, which contains all of the model data: geometry, animations, AI hooks, and so on. It’s ready to be called by relevant code.
Das heisst also man müsste die MDL erstmal "Decompilieren" und dann die richtige SMD laden.
Jetzt weis ich blos net läst sich was mit den informationen von dieser Seite http://developer.valvesoftware.com/wiki/SMD_file_format anfangen.
