Panda3D
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Enables or disables writing of pixel to framebuffer based on its alpha value relative to a reference alpha value. More...
Public Member Functions | |
RenderAttrib::PandaCompareFunc | getMode () |
Returns the alpha write mode. More... | |
float | getReferenceAlpha () |
Returns the alpha reference value. More... | |
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int | compareTo (const RenderAttrib other) |
Provides an arbitrary ordering among all unique RenderAttribs, so we can store the essentially different ones in a big set and throw away the rest. More... | |
const RenderAttrib | compose (const RenderAttrib other) |
Returns a new RenderAttrib object that represents the composition of this attrib with the other attrib. In most cases, this is the same as the other attrib; a compose b produces b. Some kinds of attributes, like a TextureTransform, for instance, might produce a new result: a compose b produces c. More... | |
const RenderAttrib | getAutoShaderAttrib (const RenderState state) |
Returns the variant of this RenderAttrib that's most relevant for associating with an auto-generated shader. This should be a new RenderAttrib of the same type as this one, with any superfluous data set to neutral. Only the parts of the attrib that contribute to the shader should be reflected in the returned attrib. The idea is to associate the auto-generated shader with the most neutral form of all states, to allow it to be shared across as many RenderState objects as possible. More... | |
size_t | getHash () |
Returns a suitable hash value for phash_map. More... | |
int | getSlot () |
const RenderAttrib | getUnique () |
Returns the pointer to the unique RenderAttrib in the cache that is equivalent to this one. This may be the same pointer as this object, or it may be a different pointer; but it will be an equivalent object, and it will be a shared pointer. This may be called from time to time to improve cache benefits. More... | |
const RenderAttrib | invertCompose (const RenderAttrib other) |
Returns a new RenderAttrib object that represents the composition of the inverse of this attrib with the other attrib. In most cases, this is the same as the other attrib; !a compose b produces b. Some kinds of attributes, like a TextureTransform, for instance, might produce a new result: !a compose b produces c. More... | |
bool | lowerAttribCanOverride () |
Intended to be overridden by derived RenderAttrib types to specify how two consecutive RenderAttrib objects of the same type interact. More... | |
output (Ostream out) | |
write (Ostream out, int indent_level) | |
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object | __reduce__ () |
object | __reduce_persist__ (object pickler) |
str | encodeToBamStream () |
Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a string string. Returns empty string on failure. More... | |
bool | encodeToBamStream (String data, BamWriter writer) |
Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. Returns true on success, false on failure. More... | |
UpdateSeq | getBamModified () |
Returns the current bam_modified counter. This counter is normally incremented automatically whenever the object is modified. More... | |
markBamModified () | |
Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. This should normally not need to be called by user code; it should be called internally when the object has been changed in a way that legitimately requires its retransmission to any connected clients. More... | |
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TypeHandle | getType () |
Derived classes should override this function to return get_class_type(). More... | |
int | getTypeIndex () |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. This is equivalent to get_type().get_index(). More... | |
bool | isExactType (TypeHandle handle) |
Returns true if the current object is the indicated type exactly. More... | |
bool | isOfType (TypeHandle handle) |
Returns true if the current object is or derives from the indicated type. More... | |
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int | getRefCount () |
Returns the current reference count. More... | |
ref () | |
Explicitly increments the reference count. User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically. More... | |
bool | testRefCountIntegrity () |
Does some easy checks to make sure that the reference count isn't completely bogus. Returns true if ok, false otherwise. More... | |
bool | testRefCountNonzero () |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus. Returns true if ok, false otherwise. More... | |
bool | unref () |
Explicitly decrements the reference count. Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic.) However, see the helper function unref_delete(). More... | |
Static Public Member Functions | |
static int | getClassSlot () |
static TypeHandle | getClassType () |
static const RenderAttrib | make (RenderAttrib::PandaCompareFunc mode, float reference_alpha) |
Constructs a new AlphaTestAttrib object. More... | |
static const RenderAttrib | makeDefault () |
Returns a RenderAttrib that corresponds to whatever the standard default properties for render attributes of this type ought to be. More... | |
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static int | garbageCollect () |
Performs a garbage-collection cycle. This is called automatically from RenderState::garbage_collect(); see that method for more information. More... | |
static TypeHandle | getClassType () |
static int | getNumAttribs () |
Returns the total number of unique RenderAttrib objects allocated in the world. This will go up and down during normal operations. More... | |
static | listAttribs (Ostream out) |
Lists all of the RenderAttribs in the cache to the output stream, one per line. This can be quite a lot of output if the cache is large, so be prepared. More... | |
static bool | validateAttribs () |
Ensures that the cache is still stored in sorted order. Returns true if so, false if there is a problem (which implies someone has modified one of the supposedly-const RenderAttrib objects). More... | |
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static TypedWritableReferenceCount | decodeFromBamStream (str data, BamReader reader) |
Reads the string created by a previous call to encode_to_bam_stream(), and extracts and returns the single object on that string. Returns NULL on error. More... | |
static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
Additional Inherited Members | |
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enum | PandaCompareFunc { M_none = 0, M_never = 1, M_less = 2, M_equal = 3, M_less_equal = 4, M_greater = 5, M_not_equal = 6, M_greater_equal = 7, M_always = 8 } |
intentionally defined to match D3DCMPFUNC More... | |
enum | TexGenMode { M_off = 0, M_eye_sphere_map = 1, M_world_cube_map = 2, M_eye_cube_map = 3, M_world_normal = 4, M_eye_normal = 5, M_world_position = 6, M_unused = 7, M_eye_position = 8, M_point_sprite = 9, M_unused2 = 10, M_constant = 11 } |
This is the enumerated type for TexGenAttrib. It is inherited into TexGenAttrib. It is defined up at this level only to avoid circular dependencies in the header files. More... | |
Enables or disables writing of pixel to framebuffer based on its alpha value relative to a reference alpha value.
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RenderAttrib::PandaCompareFunc getMode | ( | ) |
Returns the alpha write mode.
float getReferenceAlpha | ( | ) |
Returns the alpha reference value.
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Constructs a new AlphaTestAttrib object.
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Returns a RenderAttrib that corresponds to whatever the standard default properties for render attributes of this type ought to be.