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Linux 3D
interactive ray-tracing
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Index

 E3dModel_ResetTransforms
 E3dModel_AppendObject
 E3dModel_InsertObject
 E3dModel_AddObject
 E3dModel_GetIndexOfObject
 E3dModel_RemoveObject
 E3dModel_RemoveInstances
 E3dModel_RemoveObjects
 E3dModel_GetBoundingBox
 E3dModel_GetTransformedBoundingBox
 E3dModel_UnselectObjects


E3dModel_ResetTransforms

Reset transformation values of a Model

Syntax
void E3dModel_ResetTransforms(E3dModel* PModel)

Argument
E3dModel* PModel Pointer to the Model structure
Description
Resets the transformations of the Model, by calling E3dTransformSet_Reset(), with PFreeTransformList = FALSE. Also loads an identity Matrix into LocalToWorldMatrix and LocalToWorldUnitVectorMatrix and sets the Matrix_TimeStamp to E3d_GetTime().

Return value
None.

E3dModel_AppendObject

Append an Object to a Model

Syntax
E3dObject* E3dModel_AppendObject(E3dModel* PModel, E3dObject* PObject)

Arguments
E3dModel* PModel Pointer to the Model E3dObject* PObject Object to append
Description
This function adds the given Object to the list of Geometries on the given Model. E3dObject is the base-class for:
  • E3dGeometry
  • E3dLight
  • E3dCamera


  • Return value
    PObject if all went well, NULL in case of an error.

    E3dModel_InsertObject

    Insert an Object into a Model's Objects array before a given position

    Syntax
    E3dObject* E3dModel_InsertObject(E3dModel* PModel, E3dObject* PObject, const EIndex PWhere)

    Arguments
    E3dModel* PModel Pointer to the Model E3dObject* PObject Object to append const EIndex PWhere Insert before this position
    Description
    This function adds the given Object to the list of Geometries on the given Model. E3dObject is the base-class for:
  • E3dGeometry
  • E3dLight
  • E3dCamera


  • Return value
    PObject if all went well, NULL in case of an error.

    E3dModel_AddObject

    Allocate a Geometry of the given type and add it to a Model

    Syntax
    E3dObject* E3dModel_AddObject(E3dModel* PModel, E3dObjectClass* PClass)

    Arguments
    E3dModel* PModel Pointer to the Model E3dObjectClass* PClass The type of the new Object
    Description
    This function allocates, initializes a Geometry of the given type and adds it to the list of Objects on the given Model.

    Return value
    Pointer to the new Object, or NULL in case of an error.

    See also
    E3dModel_AppendObject

    E3dModel_GetIndexOfObject

    See if a Model has the given Object

    Syntax
    EIndex E3dModel_GetIndexOfObject(E3dModel* PModel, E3dObject* PObject)

    Arguments
    E3dModel* PModel Pointer to the Model E3dObject* PObject Pointer to the Object
    Description
    Checks if a Model has the given Object.

    Return value
    The index of LObject is in the Object list of PModel. If PObject is not in the list, returns -1

    E3dModel_RemoveObject

    Remove Object from a Model

    Syntax
    void E3dModel_RemoveObject(E3dModel* PModel, E3dObject* PObject)

    Arguments
    E3dModel* PModel Pointer to the Model E3dObject* PObject Pointer to the Object
    Description
    Removes LObject from the given Model's dynamically allocated Object list.

    Return value
    None.

    E3dModel_RemoveInstances

    Free all instance records of a Model

    Syntax
    void E3dModel_RemoveInstances(E3dModel* PModel)

    Argument
    E3dModel* PModel Pointer to the E3dModel structure
    Description
    Frees all the Instance entries on PModel.

    Return value
    None.

    See also
    E3dModel_AppendObject, E3dModel_AddObject, E3dModel_RemoveObject

    E3dModel_RemoveObjects

    Free all Objects of a Model

    Syntax
    void E3dModel_RemoveObjects(E3dModel* PModel)

    Argument
    E3dModel* PModel Pointer to the E3dModel structure
    Description
    Frees all the Objects of PModel.

    Return value
    None.

    See also
    E3dModel_AppendObject, E3dModel_AddObject, E3dModel_RemoveObject

    E3dModel_GetBoundingBox

    Compute the bounding box of a Model in its local coordinate system

    Syntax
    EBool E3dModel_GetBoundingBox(E3dModel* PModel, E3dCoord3* PBBMin, E3dCoord3* PBBMax, unsigned int PWhatToInclude)

    Arguments
    E3dModel* PModel Pointer to the Model E3dCoord3* PBBMin First corner of bounding box E3dCoord3* PBBMax Opposite corner of bounding box unsigned int PWhatToInclude Flags to indicate what components to consider for the BBox
    Description
    Computes the bounding box of a Model and returns it in PBBMin and PBBMax. PWhatToInclude may be E3dBB_SELECTED_GEOMETRY or E3dBB_ALL.

    Return value
    TRUE if there is a valid bounding box, FALSE otherwise (e.g. the Model has no Geometries).

    E3dModel_GetTransformedBoundingBox

    Compute the bounding box of a Model in a given coordinate system

    Syntax
    EBool E3dModel_GetTransformedBoundingBox(E3dModel* PModel, E3dMatrix PMatrix, E3dCoord3* PBBMin, E3dCoord3* PBBMax, unsigned int PWhatToInclude)

    Arguments
    E3dModel* PModel Pointer to the Model structure E3dMatrix PMatrix Matrix to transform the Geometry with E3dCoord3* PBBMin First corner of bounding box E3dCoord3* PBBMax Opposite corner of bounding box unsigned int PWhatToInclude OR-ed flags of what components to consider for the BBox
    Description
    Computes the bounding box of a Model in a coordinate system defined by a Matrix and returns it in PBBMin and PBBMax.

    Return value
    TRUE if there is a valid bounding box, FALSE if there isn't one (e.g. the Model has no geometry attached to it).

    E3dModel_UnselectObjects

    Unselect Objects of a Model

    Syntax
    EChangeFlags E3dModel_UnselectObjects(E3dScene* PScene, E3dModel* PModel, E3dObject** PSkipTheseObjects, const EIndex PSkipTheseObjects_Count, const int PFlags, const EBool PNotify)

    Arguments
    E3dModel* PModel Pointer to the E3dModel E3dObject** PSkipTheseObjects Array of pointers to E3dObjects const int PFlags OR-ed flags of E3dSF_OBJECTS, E3dSF_POLYGROUPS, E3dSF_POLYGONS, E3dSF_EDGES, E3dSF_VERTICES, E3dSF_SPLINE_SEGMENTS const EBool PNotify Call callbacks for the Objects
    Description
    Unselect Objects and components of Objects instantiated on a Model.

    Return value
    E3dChg... flags, indicating what changed
    © 1996-2022 By Gabor Nagy