XintView3DSetGlobalFlags

     void XintView3DSetGlobalFlags(...)

XintView3DGlobalFlags *	flags	Specifies a pointer to a structure containing the flags to set.
unsigned long	flag_mask	Specifies which members of flags to set. flag_mask is made by combining any number of the mask symbols listed below.

Arguments flags and flag_mask are used to set or unset the global flags. Argument flags is a pointer to a structure of type XintView3DGlobalFlags which is described below:

   typedef struct {
                   Boolean disable_normals;
                   Boolean disable_polygon_data;
                   Boolean offscreen_select;
                   Boolean local_storage;
                   Boolean swapping;
                   char *swap_file
                   unsigned long swap_size;
   } XintView3DGlobalFlags;

You need only set the components that you want to change. The following table lists the structure members, the default values and the corresponding mask.

Member	Default	Mask
disable_normals	False	XintGLOBAL_DISABLE_NORMALS
disable_polygon_data	False	XintGLOBAL_DISABLE_POLYGON_DATA
offscreen_select	False	XintGLOBAL_OFFSCREEN_SELECT
local_storage	True	XintGLOBAL_LOCAL_STORAGE
swapping	False	XintGLOBAL_SWAPPING
swap_file	/usr/tmp/View3DSwap	XintGLOBAL_SWAP_FILE
swap_size	0x01ffffff	XintGLOBAL_SWAP_SIZE

The following table lists the effects of the global flags.

Flag	Value	Effect
disable_normals	True	No surface normals will be generated for any objects. This will also disable lighting. By setting this flag, each mesh surface will use 19% less memory.
disable_normals	False	Default setting. Lighting is functional.
disable_polygon_data	True	No polygon data will be generated for any of the mesh surfaces. This will also disable picking. Selection will work as if offscreen_select had been set to True. This will also save 56% of the memory required by mesh surfaces.
disable_polygon_data	False	Default setting. Polygon data will be generated for surfaces. This data is needed for Picking (but not selection). It is also useful for user applications such as Ray Tracing.
offscreen_select	True	Forces all View3D widgets to use an offscreen pixmap to perform selection. The extra memory required for offscreen selection is negligible. The system will generate a 5x5 pixmap for the selection. Offscreen selection will normally be slower than the regular selection method, but in many cases it will not be noticed.
offscreen_select	False	Default setting. All View3D widgets will use the polygon data of each mesh surface to perform selection.
local_storage	True	Default setting. Whenever an object is created, the creation function (ex: XintView3DCreateMeshSurface) will allocate memory for all elements and copy the user supplied data. This will protect the user from accidently freeing resources that a View3D widget is using.
local_storage	False	Whenever an object is created, the creation function will not allocate any memory (except for the name of the object). The function will just assign pointers to the user supplied data. This feature is useful when large datasets are being used. It will decrease the time necessary to create an object, and reduce memory requirements. The user must make certain that any memory allocated is not freed while a View3D widget is using it. Warning: If an object is removed from a viewer (XintView3DRemovObject) the object will be dereferenced and possibly deleted. If the resources should not be freed, remember to reference the object before adding (XintView3DRefObject).
swapping	True	If the datasets are larger than physical memory the swapping will be handled by View3D.
swapping	False	If the datasets are larger than physical memory the swapping will be handled by the system.
swap_file	/usr/tmp/View3DSwap	When the dataset is larger than physical memory this file will be used to store the data, if View3D is handling the swapping.
swap_size	32MB	The size of physical memory if View3D is handling the swapping.