Panda3D
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A specialization on EggBinMaker for making polysets that share the same basic rendering characteristic. More...
Public Types | |
enum | BinNumber { BNNone = 0, BNPolyset = 1 } |
enum | Properties { PHasTexture = 1, PTexture = 2, PHasMaterial = 4, PMaterial = 8, PHasPolyColor = 16, PPolyColor = 32, PHasPolyNormal = 64, PHasVertexNormal = 128, PHasVertexColor = 256, PBface = 512 } |
Public Member Functions | |
EggPolysetMaker () | |
clearUserData (TypeHandle type) | |
Removes the user data pointer of the indicated type. | |
clearUserData () | |
Removes *all* user data pointers from the node. | |
bool | collapseGroup (EggGroup const group, int bin_number) |
May be overridden in derived classes to specify whether a particular group node, apparently redundant, may be safely collapsed out. | |
string | getBinName (int bin_number, EggNode const child) |
May be overridden in derived classes to define a name for each new bin, based on its bin number, and a sample child. | |
int | getBinNumber (EggNode const node) |
EggUserData | getUserData () |
Returns the user data pointer most recently stored on this object, or NULL if nothing was previously stored. | |
EggUserData | getUserData (TypeHandle type) |
Returns the user data pointer of the indicated type, if it exists, or NULL if it does not. | |
bool | hasUserData () |
Returns true if a generic user data pointer has recently been set and not yet cleared, false otherwise. | |
bool | hasUserData (TypeHandle type) |
Returns true if the user data pointer of the indicated type has been set, false otherwise. | |
EggBin | makeBin (int bin_number, EggNode const child, EggGroup collapse_from) |
May be overridden in derived classes to construct a new EggBin object (or some derived class, if needed), and preload some initial data into as required. | |
int | makeBins (EggGroupNode root_group) |
The main entry point to EggBinMaker. | |
prepareNode (EggNode node) | |
May be overridden in derived classes to perform some setup work as each node is encountered. | |
setProperties (int properties) | |
Sets the set of properties that determines which polygons are allowed to be grouped together into a single polyset. | |
setUserData (EggUserData user_data) | |
Sets the user data associated with this object. | |
bool | sortsLess (int bin_number, EggNode const a, EggNode const b) |
May be overridden in derived classes to create additional bins within a particular bin number, based on some arbitrary property of nodes. | |
Static Public Member Functions | |
static TypeHandle | getClassType () |
A specialization on EggBinMaker for making polysets that share the same basic rendering characteristic.
This really just defines the example functions described in the leading comment to EggBinMaker.
It makes some common assumptions about how polysets should be grouped; if these are not sufficient, you can always rederive your own further specialization of this class.
enum BinNumber |
enum Properties |
EggPolysetMaker | ( | ) |
clearUserData | ( | ) | [inherited] |
Removes *all* user data pointers from the node.
clearUserData | ( | TypeHandle | type | ) | [inherited] |
Removes the user data pointer of the indicated type.
bool collapseGroup | ( | EggGroup const | group, |
int | bin_number | ||
) | [inherited] |
May be overridden in derived classes to specify whether a particular group node, apparently redundant, may be safely collapsed out.
May be overridden in derived classes to define a name for each new bin, based on its bin number, and a sample child.
int getBinNumber | ( | EggNode const | node | ) | [inherited] |
static TypeHandle getClassType | ( | ) | [static] |
Reimplemented from EggBinMaker.
EggUserData getUserData | ( | ) | [inherited] |
Returns the user data pointer most recently stored on this object, or NULL if nothing was previously stored.
EggUserData getUserData | ( | TypeHandle | type | ) | [inherited] |
Returns the user data pointer of the indicated type, if it exists, or NULL if it does not.
bool hasUserData | ( | ) | [inherited] |
Returns true if a generic user data pointer has recently been set and not yet cleared, false otherwise.
bool hasUserData | ( | TypeHandle | type | ) | [inherited] |
Returns true if the user data pointer of the indicated type has been set, false otherwise.
May be overridden in derived classes to construct a new EggBin object (or some derived class, if needed), and preload some initial data into as required.
child is an arbitrary child of the bin, and collapse_from is the group the bin is being collapsed with, if any (implying collapse_group() returned true), or NULL if not.
int makeBins | ( | EggGroupNode | root_group | ) | [inherited] |
The main entry point to EggBinMaker.
Walks the egg scene graph beginning at the indicated root node, and moves all binnable nodes into EggBin objects. Returns the number of EggBins created.
prepareNode | ( | EggNode | node | ) | [inherited] |
May be overridden in derived classes to perform some setup work as each node is encountered.
This will be called once for each node in the egg hierarchy.
setProperties | ( | int | properties | ) |
Sets the set of properties that determines which polygons are allowed to be grouped together into a single polyset.
This is the bitwise 'or' of all the properties that matter. If this is 0, all polygons (within a given group) will be lumped into a common polyset regardless of their properties.
setUserData | ( | EggUserData | user_data | ) | [inherited] |
Sets the user data associated with this object.
This may be any EggUserData-derived object. The egg library will do nothing with this pointer, except to hold its reference count and return the pointer on request.
The EggObject maintains multiple different EggUserData pointers, one for each unique type (as reported by get_type()). If you know that only one type of EggUserData object will be added in your application, you may use the query functions that accept no parameters, but it is recommended that in general you pass in the type of your particular user data, to allow multiple applications to coexist in the same egg data.
This pointer is also copied by the copy assignment operator and copy constructor.
May be overridden in derived classes to create additional bins within a particular bin number, based on some arbitrary property of nodes.
This function establishes an arbitrary but fixed ordering between nodes; if two nodes do not sort to the same position, different bins are created for each one (with the same bin number on each bin).