This controls the enabling of transparency. More...

#include "transparencyAttrib.h"

Inheritance diagram for TransparencyAttrib:

Public Types
enum	Mode { M_none = 0, M_alpha = 1, M_notused, M_multisample, M_multisample_mask, M_binary, M_dual }
Public Member Functions
virtual TypeHandle	force_init_type ()
Mode	get_mode () const
	Returns the transparency mode.
virtual int	get_slot () const
virtual TypeHandle	get_type () const
virtual void	output (ostream &out) const
virtual void	write_datagram (BamWriter *manager, Datagram &dg)
	Writes the contents of this object to the datagram for shipping out to a Bam file.
Static Public Member Functions
static	CPT (RenderAttrib) make(Mode mode)
static	CPT (RenderAttrib) make_default()
static int	get_class_slot ()
static TypeHandle	get_class_type ()
static void	init_type ()
static void	register_with_read_factory ()
	Tells the BamReader how to create objects of type TransparencyAttrib.
Protected Member Functions
virtual int	compare_to_impl (const RenderAttrib *other) const
	Intended to be overridden by derived TransparencyAttrib types to return a unique number indicating whether this TransparencyAttrib is equivalent to the other one.
virtual	CPT (RenderAttrib) get_auto_shader_attrib_impl(const RenderState *state) const
void	fillin (DatagramIterator &scan, BamReader *manager)
	This internal function is called by make_from_bam to read in all of the relevant data from the BamFile for the new TransparencyAttrib.
virtual size_t	get_hash_impl () const
	Intended to be overridden by derived RenderAttrib types to return a unique hash for these particular properties.
Static Protected Member Functions
static TypedWritable *	make_from_bam (const FactoryParams &params)
	This function is called by the BamReader's factory when a new object of type TransparencyAttrib is encountered in the Bam file.

Detailed Description

This controls the enabling of transparency.

Simply setting an alpha component to non-1 does not in itself make an object transparent; you must also enable transparency mode with a suitable TransparencyAttrib. Similarly, it is wasteful to render an object with a TransparencyAttrib in effect unless you actually want it to be at least partially transparent (and it has alpha components less than 1).

Definition at line 36 of file transparencyAttrib.h.

Member Function Documentation

int TransparencyAttrib::compare_to_impl ( const RenderAttrib * other ) const [protected, virtual]

Intended to be overridden by derived TransparencyAttrib types to return a unique number indicating whether this TransparencyAttrib is equivalent to the other one.

This should return 0 if the two TransparencyAttrib objects are equivalent, a number less than zero if this one should be sorted before the other one, and a number greater than zero otherwise.

This will only be called with two TransparencyAttrib objects whose get_type() functions return the same.

Reimplemented from RenderAttrib.

Definition at line 103 of file transparencyAttrib.cxx.

void TransparencyAttrib::fillin	(	DatagramIterator &	scan,
		BamReader *	manager
	)		`[protected, virtual]`

This internal function is called by make_from_bam to read in all of the relevant data from the BamFile for the new TransparencyAttrib.

Reimplemented from RenderAttrib.

Definition at line 188 of file transparencyAttrib.cxx.

References DatagramIterator::get_int8().

Referenced by make_from_bam().

size_t TransparencyAttrib::get_hash_impl ( ) const [protected, virtual]

Intended to be overridden by derived RenderAttrib types to return a unique hash for these particular properties.

RenderAttribs that compare the same with compare_to_impl(), above, should return the same hash; RenderAttribs that compare differently should return a different hash.

Reimplemented from RenderAttrib.

Definition at line 120 of file transparencyAttrib.cxx.

References integer_hash< Key, Compare >::add_hash().

TransparencyAttrib::Mode TransparencyAttrib::get_mode ( ) const [inline]

Returns the transparency mode.

Definition at line 34 of file transparencyAttrib.I.

Referenced by CullResult::add_object(), ShaderGenerator::analyze_renderstate(), TinyGraphicsStateGuardian::begin_draw_primitives(), DXGraphicsStateGuardian9::do_issue_blending(), DXGraphicsStateGuardian8::do_issue_blending(), and NodePath::get_transparency().

TypedWritable * TransparencyAttrib::make_from_bam ( const FactoryParams & params ) [static, protected]

This function is called by the BamReader's factory when a new object of type TransparencyAttrib is encountered in the Bam file.

It should create the TransparencyAttrib and extract its information from the file.

Definition at line 169 of file transparencyAttrib.cxx.

References fillin().

Referenced by register_with_read_factory().

void TransparencyAttrib::register_with_read_factory ( ) [static]

Tells the BamReader how to create objects of type TransparencyAttrib.

Definition at line 143 of file transparencyAttrib.cxx.

References BamReader::get_factory(), make_from_bam(), and Factory< Type >::register_factory().

void TransparencyAttrib::write_datagram	(	BamWriter *	manager,
		Datagram &	dg
	)		`[virtual]`

Writes the contents of this object to the datagram for shipping out to a Bam file.

Reimplemented from RenderAttrib.

Definition at line 154 of file transparencyAttrib.cxx.

References Datagram::add_int8().

The documentation for this class was generated from the following files:

panda/src/pgraph/transparencyAttrib.h
panda/src/pgraph/transparencyAttrib.cxx
panda/src/pgraph/transparencyAttrib.I

TransparencyAttrib Class Reference

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Detailed Description

Member Function Documentation