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Shader Class Reference
Inheritance diagram for Shader:
TypedWritableReferenceCount TypedWritable ReferenceCount TypedObject MemoryBase MemoryBase

Classes

struct  ShaderArgId
 
struct  ShaderArgInfo
 
class  ShaderCaps
 
class  ShaderFile
 
struct  ShaderMatSpec
 
struct  ShaderPtrData
 
struct  ShaderPtrSpec
 
struct  ShaderTexSpec
 
struct  ShaderVarSpec
 

Public Types

enum  AutoShaderBit {
  bit_AutoShaderNormal = 0, bit_AutoShaderGlow = 1, bit_AutoShaderGloss = 2, bit_AutoShaderRamp = 3,
  bit_AutoShaderShadow = 4
}
 
enum  AutoShaderSwitch {
  AS_normal = 0x01, AS_glow = 0x02, AS_gloss = 0x04, AS_ramp = 0x08,
  AS_shadow = 0x10
}
 
enum  ShaderArgClass {
  SAC_scalar, SAC_vector, SAC_matrix, SAC_sampler,
  SAC_array, SAC_unknown
}
 
enum  ShaderArgDir { SAD_in, SAD_out, SAD_inout, SAD_unknown }
 
enum  ShaderArgType {
  SAT_scalar, SAT_vec1, SAT_vec2, SAT_vec3,
  SAT_vec4, SAT_mat1x1, SAT_mat1x2, SAT_mat1x3,
  SAT_mat1x4, SAT_mat2x1, SAT_mat2x2, SAT_mat2x3,
  SAT_mat2x4, SAT_mat3x1, SAT_mat3x2, SAT_mat3x3,
  SAT_mat3x4, SAT_mat4x1, SAT_mat4x2, SAT_mat4x3,
  SAT_mat4x4, SAT_sampler1d, SAT_sampler2d, SAT_sampler3d,
  SAT_sampler2dArray, SAT_samplercube, SAT_unknown
}
 
enum  ShaderBug { SBUG_ati_draw_buffers }
 
enum  ShaderLanguage { SL_none, SL_Cg, SL_GLSL }
 
enum  ShaderMatFunc {
  SMF_compose, SMF_transform_dlight, SMF_transform_plight, SMF_transform_slight,
  SMF_first
}
 
enum  ShaderMatInput {
  SMO_identity, SMO_window_size, SMO_pixel_size, SMO_texpad_x,
  SMO_texpix_x, SMO_attr_material, SMO_attr_color, SMO_attr_colorscale,
  SMO_alight_x, SMO_dlight_x, SMO_plight_x, SMO_slight_x,
  SMO_satten_x, SMO_texmat_x, SMO_plane_x, SMO_clipplane_x,
  SMO_mat_constant_x, SMO_vec_constant_x, SMO_world_to_view, SMO_view_to_world,
  SMO_model_to_view, SMO_view_to_model, SMO_apiview_to_view, SMO_view_to_apiview,
  SMO_clip_to_view, SMO_view_to_clip, SMO_apiclip_to_view, SMO_view_to_apiclip,
  SMO_view_x_to_view, SMO_view_to_view_x, SMO_apiview_x_to_view, SMO_view_to_apiview_x,
  SMO_clip_x_to_view, SMO_view_to_clip_x, SMO_apiclip_x_to_view, SMO_view_to_apiclip_x,
  SMO_attr_fog, SMO_attr_fogcolor, SMO_frame_number, SMO_frame_time,
  SMO_frame_delta, SMO_mat_constant_x_attrib, SMO_vec_constant_x_attrib, SMO_light_ambient,
  SMO_light_source_i_attrib, SMO_light_product_i_ambient, SMO_light_product_i_diffuse, SMO_light_product_i_specular,
  SMO_apiview_clipplane_i, SMO_model_to_apiview, SMO_apiview_to_model, SMO_apiview_to_apiclip,
  SMO_apiclip_to_apiview, SMO_INVALID
}
 
enum  ShaderMatPiece {
  SMP_whole, SMP_transpose, SMP_row0, SMP_row1,
  SMP_row2, SMP_row3, SMP_col0, SMP_col1,
  SMP_col2, SMP_col3, SMP_row3x1, SMP_row3x2,
  SMP_row3x3, SMP_upper3x3, SMP_transpose3x3, SMP_cell15
}
 
enum  ShaderPtrType { SPT_float, SPT_double, SPT_int, SPT_unknown }
 
enum  ShaderStateDep {
  SSD_NONE = 0x000, SSD_general = 0x001, SSD_transform = 0x002, SSD_color = 0x004,
  SSD_colorscale = 0x008, SSD_material = 0x010, SSD_shaderinputs = 0x020, SSD_fog = 0x040,
  SSD_light = 0x080, SSD_clip_planes = 0x100
}
 
enum  ShaderType {
  ST_none = 0, ST_vertex, ST_fragment, ST_geometry,
  ST_tess_control, ST_tess_evaluation, ST_compute, ST_COUNT
}
 

Public Member Functions

 ~Shader ()
 Delete the compiled code, if it exists. More...
 
void clear_parameters ()
 
bool compile_parameter (const ShaderArgId &arg_id, const ShaderArgClass &arg_class, const ShaderArgClass &arg_subclass, const ShaderArgType &arg_type, const ShaderArgDir &arg_direction, bool arg_varying, int *arg_dim, NotifyCategory *arg_cat)
 Analyzes a parameter and decides how to bind the parameter to some part of panda's internal state. More...
 
int cp_dependency (ShaderMatInput inp)
 Given ShaderMatInput, returns an indication of what part or parts of the state_and_transform the ShaderMatInput depends upon. More...
 
bool cp_errchk_parameter_float (ShaderArgInfo &arg, int lo, int hi)
 Make sure the provided parameter has a floating point type. More...
 
bool cp_errchk_parameter_in (ShaderArgInfo &arg)
 Make sure the provided parameter has the 'in' direction. More...
 
bool cp_errchk_parameter_ptr (ShaderArgInfo &p)
 
bool cp_errchk_parameter_sampler (ShaderArgInfo &arg)
 Make sure the provided parameter has a texture type. More...
 
bool cp_errchk_parameter_uniform (ShaderArgInfo &arg)
 Make sure the provided parameter has the correct variance. More...
 
bool cp_errchk_parameter_varying (ShaderArgInfo &arg)
 Make sure the provided parameter has the correct variance. More...
 
bool cp_errchk_parameter_words (ShaderArgInfo &arg, int len)
 Make sure the provided parameter contains the specified number of words. More...
 
void cp_optimize_mat_spec (ShaderMatSpec &spec)
 Analyzes a ShaderMatSpec and decides what it should use its cache for. More...
 
bool cp_parse_coord_sys (ShaderArgInfo &arg, vector_string &pieces, int &next, ShaderMatSpec &spec, bool fromflag)
 Convert a single-word coordinate system name into a PART/ARG of a ShaderMatSpec. More...
 
bool cp_parse_delimiter (ShaderArgInfo &arg, vector_string &pieces, int &next)
 Pop a delimiter ('to' or 'rel') from the word list. More...
 
bool cp_parse_eol (ShaderArgInfo &arg, vector_string &pieces, int &next)
 Make sure the next thing on the word list is EOL. More...
 
string cp_parse_non_delimiter (vector_string &pieces, int &next)
 Pop a non-delimiter word from the word list. More...
 
void cp_report_error (ShaderArgInfo &arg, const string &msg)
 Generate an error message including a description of the specified parameter. More...
 
virtual TypeHandle force_init_type ()
 
bool get_error_flag () const
 Returns true if the shader contains a compile-time error. More...
 
Filename get_filename (const ShaderType &type=ST_none) const
 Return the Shader's filename for the given shader type. More...
 
Filename get_filename_from_index (int index, ShaderType type) const
 Returns the filename of the included shader with the given source file index (as recorded in the #line statement in r_preprocess_source). More...
 
ShaderLanguage get_language () const
 Returns the shader language in which this shader was written. More...
 
const string & get_text (const ShaderType &type=ST_none) const
 Return the Shader's text for the given shader type. More...
 
virtual TypeHandle get_type () const
 
bool is_prepared (PreparedGraphicsObjects *prepared_objects) const
 Returns true if the shader has already been prepared or enqueued for preparation on the indicated GSG, false otherwise. More...
 
bool parse_eof ()
 Returns true if the parse pointer is at the end of the shader. More...
 
void parse_init ()
 Set a 'parse pointer' to the beginning of the shader. More...
 
void parse_line (string &result, bool rt, bool lt)
 Parse a line of text. More...
 
void parse_rest (string &result)
 Returns the rest of the text from the current parse location. More...
 
void parse_upto (string &result, string pattern, bool include)
 Parse lines until you read a line that matches the specified pattern. More...
 
void prepare (PreparedGraphicsObjects *prepared_objects)
 Indicates that the shader should be enqueued to be prepared in the indicated prepared_objects at the beginning of the next frame. More...
 
ShaderContextprepare_now (PreparedGraphicsObjects *prepared_objects, GraphicsStateGuardianBase *gsg)
 Creates a context for the shader on the particular GSG, if it does not already exist. More...
 
bool release (PreparedGraphicsObjects *prepared_objects)
 Frees the texture context only on the indicated object, if it exists there. More...
 
int release_all ()
 Frees the context allocated on all objects for which the texture has been declared. More...
 
virtual void write_datagram (BamWriter *manager, Datagram &dg)
 Writes the contents of this object to the datagram for shipping out to a Bam file. More...
 
- Public Member Functions inherited from TypedWritableReferenceCount
 TypedWritableReferenceCount (const TypedWritableReferenceCount &copy)
 
virtual ReferenceCountas_reference_count ()
 Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. More...
 
void operator= (const TypedWritableReferenceCount &copy)
 
- Public Member Functions inherited from TypedWritable
 TypedWritable (const TypedWritable &copy)
 
virtual int complete_pointers (TypedWritable **p_list, BamReader *manager)
 Receives an array of pointers, one for each time manager->read_pointer() was called in fillin(). More...
 
string encode_to_bam_stream () const
 Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a string string. More...
 
bool encode_to_bam_stream (string &data, BamWriter *writer=NULL) const
 Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More...
 
virtual void finalize (BamReader *manager)
 Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed. More...
 
UpdateSeq get_bam_modified () const
 Returns the current bam_modified counter. More...
 
void mark_bam_modified ()
 Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More...
 
void operator= (const TypedWritable &copy)
 
virtual bool require_fully_complete () const
 Some objects require all of their nested pointers to have been completed before the objects themselves can be completed. More...
 
virtual void update_bam_nested (BamWriter *manager)
 Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates. More...
 
- Public Member Functions inherited from TypedObject
 TypedObject (const TypedObject &copy)
 
TypedObjectas_typed_object ()
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
const TypedObjectas_typed_object () const
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
int get_best_parent_from_Set (const std::set< int > &) const
 
int get_type_index () const
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...
 
bool is_exact_type (TypeHandle handle) const
 Returns true if the current object is the indicated type exactly. More...
 
bool is_of_type (TypeHandle handle) const
 Returns true if the current object is or derives from the indicated type. More...
 
void operator= (const TypedObject &copy)
 
- Public Member Functions inherited from ReferenceCount
int get_ref_count () const
 Returns the current reference count. More...
 
WeakReferenceListget_weak_list () const
 Returns the WeakReferenceList associated with this ReferenceCount object. More...
 
bool has_weak_list () const
 Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More...
 
void local_object ()
 This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More...
 
void ref () const
 Explicitly increments the reference count. More...
 
bool test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus. More...
 
bool test_ref_count_nonzero () const
 Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More...
 
virtual bool unref () const
 Explicitly decrements the reference count. More...
 
void weak_ref (WeakPointerToVoid *ptv)
 Adds the indicated PointerToVoid as a weak reference to this object. More...
 
void weak_unref (WeakPointerToVoid *ptv)
 Removes the indicated PointerToVoid as a weak reference to this object. More...
 

Static Public Member Functions

static TypeHandle get_class_type ()
 
static ShaderUtilization get_shader_utilization ()
 This flag returns SUT_none, SUT_basic, or SUT_advanced and controls the automatic generation of shaders. More...
 
static bool have_shader_utilization ()
 If true, then get_shader_utilization has been set using set_shader_utilization. More...
 
static void init_type ()
 
static PT (Shader) load(const Filename &file
 
static PT (Shader) make(const string &body
 
static PT (Shader) load(ShaderLanguage lang
 
static PT (Shader) load_compute(ShaderLanguage lang
 
static PT (Shader) make(ShaderLanguage lang
 
static PT (Shader) make_compute(ShaderLanguage lang
 
static void register_with_read_factory ()
 Tells the BamReader how to create objects of type Shader. More...
 
static void set_shader_utilization (ShaderUtilization utl)
 Set this flag to SUT_none, SUT_basic, or SUT_advanced to limit panda's automatic shader generation facilities. More...
 
- Static Public Member Functions inherited from TypedWritableReferenceCount
static TypeHandle get_class_type ()
 
static void init_type ()
 
static PT (TypedWritableReferenceCount) decode_from_bam_stream(const string &data
 
- Static Public Member Functions inherited from TypedWritable
static bool decode_raw_from_bam_stream (TypedWritable *&ptr, ReferenceCount *&ref_ptr, const string &data, BamReader *reader=NULL)
 Reads the string created by a previous call to encode_to_bam_stream(), and extracts the single object on that string. More...
 
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from TypedObject
static TypeHandle get_class_type ()
 
static void init_type ()
 This function is declared non-inline to work around a compiler bug in g++ 2.96. More...
 
- Static Public Member Functions inherited from ReferenceCount
static TypeHandle get_class_type ()
 
static void init_type ()
 

Public Attributes

bool _error_flag
 
epvector< ShaderMatSpec_mat_spec
 
pvector< ShaderPtrSpec_ptr_spec
 
pvector< ShaderTexSpec_tex_spec
 
ShaderFile _text
 
pvector< ShaderVarSpec_var_spec
 
static const string & body
 
static const Filenamefn
 
static const Filename const
Filename
fragment
 
static const string const string & fragment
 
static const Filename const
Filename const Filename
geometry = ""
 
static const string const
string const string & 
geometry = ""
 
static ShaderLanguage lang = SL_none)
 
static const Filename const
Filename const Filename const
Filename
tess_control = ""
 
static const string const
string const string const
string & 
tess_control = ""
 
static const Filename const
Filename const Filename const
Filename const Filename
tess_evaluation = "")
 
static const string const
string const string const
string const string & 
tess_evaluation = "")
 
static const Filenamevertex
 
static const string & vertex
 
- Public Attributes inherited from TypedWritableReferenceCount
static BamReaderreader = NULL)
 

Friends

class PreparedGraphicsObjects
 
class ShaderContext
 

Additional Inherited Members

- Static Public Attributes inherited from TypedWritable
static TypedWritable *const Null = (TypedWritable*)0L
 

Detailed Description

Definition at line 50 of file shader.h.

Constructor & Destructor Documentation

Shader::~Shader ( )

Delete the compiled code, if it exists.

Definition at line 2522 of file shader.cxx.

References release_all().

Member Function Documentation

bool Shader::compile_parameter ( const ShaderArgId arg_id,
const ShaderArgClass &  arg_class,
const ShaderArgClass &  arg_subclass,
const ShaderArgType &  arg_type,
const ShaderArgDir &  arg_direction,
bool  arg_varying,
int *  arg_dim,
NotifyCategory arg_cat 
)

Analyzes a parameter and decides how to bind the parameter to some part of panda's internal state.

Updates one of the bind arrays to cause the binding to occur.

If there is an error, this routine will append an error message onto the error messages.

Definition at line 604 of file shader.cxx.

References cp_errchk_parameter_float(), cp_errchk_parameter_in(), cp_errchk_parameter_sampler(), cp_errchk_parameter_uniform(), cp_errchk_parameter_varying(), cp_errchk_parameter_words(), cp_optimize_mat_spec(), cp_parse_coord_sys(), cp_parse_delimiter(), cp_parse_eol(), and cp_report_error().

int Shader::cp_dependency ( ShaderMatInput  inp)

Given ShaderMatInput, returns an indication of what part or parts of the state_and_transform the ShaderMatInput depends upon.

Definition at line 397 of file shader.cxx.

Referenced by cp_optimize_mat_spec().

bool Shader::cp_errchk_parameter_float ( ShaderArgInfo p,
int  lo,
int  hi 
)

Make sure the provided parameter has a floating point type.

If not, print error message and return false.

Definition at line 186 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

bool Shader::cp_errchk_parameter_in ( ShaderArgInfo p)

Make sure the provided parameter has the 'in' direction.

If not, print error message and return false.

Definition at line 135 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

bool Shader::cp_errchk_parameter_sampler ( ShaderArgInfo p)

Make sure the provided parameter has a texture type.

If not, print error message and return false.

Definition at line 242 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

bool Shader::cp_errchk_parameter_uniform ( ShaderArgInfo p)

Make sure the provided parameter has the correct variance.

If not, print error message and return false.

Definition at line 169 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

bool Shader::cp_errchk_parameter_varying ( ShaderArgInfo p)

Make sure the provided parameter has the correct variance.

If not, print error message and return false.

Definition at line 152 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

bool Shader::cp_errchk_parameter_words ( ShaderArgInfo p,
int  len 
)

Make sure the provided parameter contains the specified number of words.

If not, print error message and return false.

Definition at line 116 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

void Shader::cp_optimize_mat_spec ( ShaderMatSpec spec)

Analyzes a ShaderMatSpec and decides what it should use its cache for.

It can cache the results of any one opcode, or, it can cache the entire result. This routine needs to be smart enough to know which data items can be correctly cached, and which cannot.

Definition at line 469 of file shader.cxx.

References cp_dependency().

Referenced by compile_parameter().

bool Shader::cp_parse_coord_sys ( ShaderArgInfo arg,
vector_string &  pieces,
int &  next,
ShaderMatSpec spec,
bool  fromflag 
)

Convert a single-word coordinate system name into a PART/ARG of a ShaderMatSpec.

Definition at line 307 of file shader.cxx.

References cp_parse_non_delimiter(), and cp_report_error().

Referenced by compile_parameter().

bool Shader::cp_parse_delimiter ( ShaderArgInfo arg,
vector_string &  pieces,
int &  next 
)

Pop a delimiter ('to' or 'rel') from the word list.

Definition at line 275 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

bool Shader::cp_parse_eol ( ShaderArgInfo arg,
vector_string &  pieces,
int &  next 
)

Make sure the next thing on the word list is EOL.

Definition at line 261 of file shader.cxx.

References cp_report_error().

Referenced by compile_parameter().

string Shader::cp_parse_non_delimiter ( vector_string &  words,
int &  next 
)

Pop a non-delimiter word from the word list.

Delimiters are 'to' and 'rel.'

Definition at line 291 of file shader.cxx.

Referenced by cp_parse_coord_sys().

void Shader::cp_report_error ( ShaderArgInfo arg,
const string &  msg 
)
bool Shader::get_error_flag ( ) const
inline

Returns true if the shader contains a compile-time error.

This doesn't tell you whether or not the shader is supported on the current video card.

Definition at line 100 of file shader.I.

Filename Shader::get_filename ( const ShaderType &  type = ST_none) const
inline

Return the Shader's filename for the given shader type.

Definition at line 23 of file shader.I.

Referenced by cp_report_error(), and get_filename_from_index().

Filename Shader::get_filename_from_index ( int  index,
ShaderType  type 
) const
inline

Returns the filename of the included shader with the given source file index (as recorded in the #line statement in r_preprocess_source).

We use this to associate error messages with included files.

Definition at line 862 of file shader.I.

References get_filename().

Shader::ShaderLanguage Shader::get_language ( ) const
inline

Returns the shader language in which this shader was written.

Definition at line 154 of file shader.I.

ShaderUtilization Shader::get_shader_utilization ( )
inlinestatic

This flag returns SUT_none, SUT_basic, or SUT_advanced and controls the automatic generation of shaders.

It is initialized from the config variable of the same name, but it can be subsequently adjusted.

Definition at line 126 of file shader.I.

const string & Shader::get_text ( const ShaderType &  type = ST_none) const
inline

Return the Shader's text for the given shader type.

Definition at line 62 of file shader.I.

bool Shader::have_shader_utilization ( )
inlinestatic

If true, then get_shader_utilization has been set using set_shader_utilization.

If false, then get_shader_utilization simply returns the config variable of the same name.

Definition at line 143 of file shader.I.

bool Shader::is_prepared ( PreparedGraphicsObjects prepared_objects) const

Returns true if the shader has already been prepared or enqueued for preparation on the indicated GSG, false otherwise.

Definition at line 2905 of file shader.cxx.

References PreparedGraphicsObjects::is_shader_queued().

Referenced by PreparedGraphicsObjects::is_shader_prepared().

bool Shader::parse_eof ( )

Returns true if the parse pointer is at the end of the shader.

Definition at line 2876 of file shader.cxx.

void Shader::parse_init ( )

Set a 'parse pointer' to the beginning of the shader.

Definition at line 2797 of file shader.cxx.

void Shader::parse_line ( string &  result,
bool  lt,
bool  rt 
)

Parse a line of text.

If 'lt' is true, trim blanks from the left end of the line. If 'rt' is true, trim blanks from the right end (the newline is always trimmed).

Definition at line 2810 of file shader.cxx.

Referenced by parse_upto().

void Shader::parse_rest ( string &  result)

Returns the rest of the text from the current parse location.

Definition at line 2864 of file shader.cxx.

void Shader::parse_upto ( string &  result,
string  pattern,
bool  include 
)

Parse lines until you read a line that matches the specified pattern.

Returns all the preceding lines, and if the include flag is set, returns the final line as well.

Definition at line 2839 of file shader.cxx.

References GlobPattern::matches(), and parse_line().

void Shader::prepare ( PreparedGraphicsObjects prepared_objects)

Indicates that the shader should be enqueued to be prepared in the indicated prepared_objects at the beginning of the next frame.

This will ensure the texture is already loaded into texture memory if it is expected to be rendered soon.

Use this function instead of prepare_now() to preload textures from a user interface standpoint.

Definition at line 2893 of file shader.cxx.

References PreparedGraphicsObjects::enqueue_shader().

Referenced by GeomNode::r_prepare_scene().

ShaderContext * Shader::prepare_now ( PreparedGraphicsObjects prepared_objects,
GraphicsStateGuardianBase gsg 
)

Creates a context for the shader on the particular GSG, if it does not already exist.

Returns the new (or old) ShaderContext. This assumes that the GraphicsStateGuardian is the currently active rendering context and that it is ready to accept new textures. If this is not necessarily the case, you should use prepare() instead.

Normally, this is not called directly except by the GraphicsStateGuardian; a shader does not need to be explicitly prepared by the user before it may be rendered.

Definition at line 2956 of file shader.cxx.

References PreparedGraphicsObjects::prepare_shader_now().

Referenced by PreparedGraphicsObjects::begin_frame().

void Shader::register_with_read_factory ( )
static

Tells the BamReader how to create objects of type Shader.

Definition at line 3052 of file shader.cxx.

bool Shader::release ( PreparedGraphicsObjects prepared_objects)

Frees the texture context only on the indicated object, if it exists there.

Returns true if it was released, false if it had not been prepared.

Definition at line 2922 of file shader.cxx.

References PreparedGraphicsObjects::dequeue_shader(), and PreparedGraphicsObjects::release_shader().

int Shader::release_all ( )

Frees the context allocated on all objects for which the texture has been declared.

Returns the number of contexts which have been freed.

Definition at line 3000 of file shader.cxx.

References PreparedGraphicsObjects::release_shader().

Referenced by ~Shader().

void Shader::set_shader_utilization ( ShaderUtilization  utl)
inlinestatic

Set this flag to SUT_none, SUT_basic, or SUT_advanced to limit panda's automatic shader generation facilities.

Definition at line 112 of file shader.I.

void Shader::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 TypedWritable.

Definition at line 3063 of file shader.cxx.

References Datagram::add_bool(), Datagram::add_uint8(), and Shader::ShaderFile::write_datagram().


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