Re: Apply Mutating Algorithms

[James W. <ja...@fr...>]

Daniele Cavallini wrote:
> At last I installed Visual studio 8 into my Computer.
> So I can utilize Mutating Algorithms. With mac I increase very much 
> performance.
> I use the function doLoadModel modified like below but I have an error 
> when I call MergeTriMeshes function.
> An example of file is at
> www.interstudio.net/quesa/Roof.3DMF
> Have you some idea?

Please be more specific about the error.  What was the error message?

> 
> //=============================================================================
> //      doLoadModel : Loads a Model from File
> //-----------------------------------------------------------------------------
> static TQ3Object
> doLoadModel(TQ3ViewObject theView)
> {
> TQ3StorageObject    storageObj;
>     TQ3Object             notOptimizedModel,theModel;
>     float                xBounds, yBounds, zBounds, scaleFactor;
>     TQ3BoundingBox        theBounds;
>     TQ3Vector3D            translateToOrigin = { 0.0f, 0.0f, 0.0f };
>     TQ3Matrix4x4        translateMatrix;
>     TQ3Matrix4x4        scaleMatrix;
>     TextureImporterProcPtr    funcPtr = TextureImportCallback;
>     TQ3BoundingBox dummyBounds;
>     // Get the file
>     storageObj = Qut_SelectMetafileToOpen();
>     if( storageObj == NULL )
>         return NULL;
>     
> 
>     // Attach texture import callback in case this is VRML.
> #if !TARGET_API_MAC_OS8
>     Q3Object_SetProperty( storageObj, kTextureImportCallbackPropertyType,
>         sizeof(TextureImporterProcPtr), &funcPtr );
> #endif
> 
> 
>     // Read the file (note, this disposes of storageObj)
>     notOptimizedModel = Qut_ReadModel(storageObj);
>         
>     
>     // Adjust the scale and translation required for the model
>     //
>     // Qut positions the camera 5 units away from the origin, with a 
> hither-yon
>     // distance of ~10 units. By scaling the object to be 3.75f units 
> across,
>     // we obtain something which fits within the visible range of the 
> camera.
>     if(notOptimizedModel)
>         {
> //        theModel=optmizeModel(notOptimizedModel,theView);
> TQ3Status            stato;
> TQ3ViewStatus        viewStatus;
> TQ3BoundingBox dummyBounds;
> 
>     RemoveExtraReferences(notOptimizedModel);
> 
>     stato=Q3View_StartBoundingBox( theView, kQ3ComputeBoundsApproximate );
>     Qut_SubmitDefaultState(theView);
>     DecomposeGeometries( notOptimizedModel, theView );
>     
>     viewStatus=Q3View_EndBoundingBox( theView, &dummyBounds );
> 
> if(stato==kQ3Success)
>                 do
>                     {
>                     
>                     Q3Object_Submit(notOptimizedModel,theView);
>                     
>                     DecomposeGeometries( notOptimizedModel, theView );
>                     viewStatus=Q3View_EndBoundingBox( theView, 
> &dummyBounds);
>                     }//do
>                 while (viewStatus==kQ3ViewStatusRetraverse);
>     
>     
>     
>     LowerAttributesToGeometries( notOptimizedModel);
> //TQ3GroupObject oldgroup=notOptimizedModel;
> 
>     theModel=(TQ3GroupObject) FlattenHierarchy(notOptimizedModel,0 );
> //Q3Object_Dispose(oldgroup);
> 
>     OptimizeTriMeshes(theModel);
>     MergeTriMeshes( theModel);
> 
>         Qut_CalcBounds(theView, theModel, &theBounds);
>         xBounds = (theBounds.max.x - theBounds.min.x);
>         yBounds = (theBounds.max.y - theBounds.min.y);
>         zBounds = (theBounds.max.z - theBounds.min.z);
> 
>         scaleFactor = (xBounds > yBounds)     ? xBounds : yBounds;
>         scaleFactor = (zBounds > scaleFactor) ? zBounds : scaleFactor;
>         scaleFactor = 3.75f / scaleFactor;
> 
>         translateToOrigin.x = -(theBounds.min.x + (xBounds * 0.5f));
>         translateToOrigin.y = -(theBounds.min.y + (yBounds * 0.5f));
>         translateToOrigin.z = -(theBounds.min.z + (zBounds * 0.5f));
> 
>         
> Q3Matrix4x4_SetTranslate(&translateMatrix,translateToOrigin.x,translateToOrigin.y,translateToOrigin.z);
>         
> Q3Matrix4x4_SetScale(&scaleMatrix,scaleFactor,scaleFactor,scaleFactor);
>         
>         Q3Matrix4x4_SetIdentity(&gMatrixCurrent);
>         
>        
>  Q3Matrix4x4_Multiply(&gMatrixCurrent,&translateMatrix,&gMatrixCurrent);
>         Q3Matrix4x4_Multiply(&gMatrixCurrent,&scaleMatrix,&gMatrixCurrent);
> 
>         }
>     return theModel;
> 
> 
> }
> 
> 
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-- 
   James W. Walker, Innoventive Software LLC
   <http://www.frameforge3d.com/>