NL3D::CVertexProgram Class Reference

#include <vertex_program.h>

Inheritance diagram for NL3D::CVertexProgram:

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Detailed Description

This class is a vertex program.

D3D / OPENGL compatibility notes: ---------------------------------

To make your program compatible with D3D and OPENGL nel drivers, please follow thoses directives to write your vertex programs

• Use only v[0], v[1] etc.. syntax for input registers. Don't use v0, v1 or v[OPOS] etc..
• Use only c[0], c[1] etc.. syntax for constant registers. Don't use c0, c1 etc..
• Use only o[HPOS], o[COL0] etc.. syntax for output registers. Don't use oPos, oD0 etc..
• Use only uppercase for registers R1, R2 etc.. Don't use lowercase r1, r2 etc..
• Use a semicolon to delineate instructions.
• Use ARL instruction to load the adress register and not MOV.
• Don't use the NOP instruction.
• Don't use macros.

-> Thoses programs work without any change under OpenGL. -> Direct3D driver implementation will have to modify the syntax on the fly before the setup like this:

• "v[0]" must be changed in "v0" etc..
• "o[HPOS]" must be changed in oPos etc..
• Semicolon must be changed in line return character.
• ARL instruction must be changed in MOV.

Behaviour of LOG may change depending on implementation: You can only expect to have dest.z = log2(abs(src.w)). LIT may or may not clamp the specular exponent to [-128, 128] (not done when EXT_vertex_shader is used for example ..)

Depending on the implementation, some optimizations can be achieved by masking the unused output values of instructions as LIT, EXPP ..

Author:

Cyril 'Hulud' Corvazier

Nevrax France

Date:

2001

Definition at line 92 of file vertex_program.h.

Public Member Functions
	CVertexProgram (const char *program)
	Constructor.
const std::string &	getProgram () const
	Get the program.
const sint &	getRefCount () const
virtual	~CVertexProgram ()
	Destructor.
Data Fields
NLMISC::CRefPtr< IVertexProgramDrvInfos >	_DrvInfo
	The driver informations. For the driver implementation only.
sint	crefs
CPtrInfo *	pinfo
Static Public Attributes
CPtrInfo	NullPtrInfo
Private Attributes
std::string	_Program
	The progam.
Friends
struct	CPtrInfo

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Constructor & Destructor Documentation

NL3D::CVertexProgram::CVertexProgram (  const char *  program  )

Constructor. Definition at line 53 of file vertex_program.cpp. References _Program, and program. { _Program=program; }

NL3D::CVertexProgram::~CVertexProgram (   )  [virtual]

Destructor. Definition at line 60 of file vertex_program.cpp. References _DrvInfo, and NLMISC::CRefPtr< IVertexProgramDrvInfos >::kill(). { // Must kill the drv mirror of this VB. _DrvInfo.kill(); }

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Member Function Documentation

const std::string& NL3D::CVertexProgram::getProgram (   )  const [inline]

Get the program. Definition at line 103 of file vertex_program.h. References _Program. { return _Program; };

const sint& NLMISC::CRefCount::getRefCount (   )  const [inline, inherited]

Definition at line 70 of file smart_ptr.h. References NLMISC::CRefCount::crefs, and sint. { return crefs; }

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Friends And Related Function Documentation

friend struct CPtrInfo [friend, inherited]

Definition at line 67 of file smart_ptr.h.

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Field Documentation

NLMISC::CRefPtr<IVertexProgramDrvInfos> NL3D::CVertexProgram::_DrvInfo

The driver informations. For the driver implementation only. Definition at line 111 of file vertex_program.h. Referenced by NL3D::CDriverGL::setupGlArraysForEXTVertexShader(), NL3D::CDriverGL::toggleGlArraysForEXTVertexShader(), and ~CVertexProgram().

std::string NL3D::CVertexProgram::_Program [private]

The progam. Definition at line 107 of file vertex_program.h. Referenced by CVertexProgram(), and getProgram().

sint NLMISC::CRefCount::crefs [mutable, inherited]

Definition at line 79 of file smart_ptr.h. Referenced by NLMISC::CRefCount::CRefCount(), NLMISC::CRefCount::getRefCount(), and NLMISC::CRefCount::~CRefCount().

CRefCount::CPtrInfo NLMISC::CRefCount::NullPtrInfo [static, inherited]

Referenced by NLMISC::CRefCount::CRefCount().

CPtrInfo* NLMISC::CRefCount::pinfo [mutable, inherited]

Definition at line 80 of file smart_ptr.h. Referenced by NLMISC::CRefCount::CRefCount(), and NLMISC::CRefCount::~CRefCount().

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

• vertex_program.h
• vertex_program.cpp

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