OpenCTM : Format de fichier ouvert pour la compression de meshes 3D

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#include 
CTMcontext context;
CTMuint  vertCount, triCount, * indices;
CTMfloat  * vertices;

 // Create a new context
 context = ctmNewContext(CTM_IMPORT);

 // Load the OpenCTM file
 ctmLoad(context, "mymesh.ctm");
 if(ctmGetError(context) == CTM_NONE)
 {
    // Access the mesh data
    vertCount = ctmGetInteger(context, CTM_VERTEX_COUNT);
    vertices = ctmGetFloatArray(context, CTM_VERTICES);
    triCount = ctmGetInteger(context, CTM_TRIANGLE_COUNT);
    indices = ctmGetIntegerArray(context, CTM_INDICES);

    // Deal with the mesh (e.g. transcode it to our
    // internal representation)
    // ...
 }

 // Free the context
 ctmFreeContext(context);

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#include 
CTMcontext context;
CTMuint  vertCount, triCount, * indices;
CTMfloat  * vertices;

// Create our mesh in memory
vertCount = 100;
triCount = 120;
vertices = (CTMfloat*)malloc(3*sizeof(CTMfloat)*vertCount);
indices = (CTMuint*)malloc(3*sizeof(CTMuint)*triCount);
// ...

// Create a new context
context = ctmNewContext(CTM_EXPORT);

// Define our mesh representation to OpenCTM (store
// references to it in the context)
ctmDefineMesh(context,
                       vertices,
                       vertCount,
                       indices,
                       triCount,
                       NULL);

// Save the OpenCTM file
ctmSave(context, "mymesh.ctm");

// Free the context
ctmFreeContext(context);

// Free our mesh
free(indices);
free(vertices);