gl_light Struct Reference

#include <mtypes.h>

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Detailed Description

Light source state.

Data Fields
struct gl_light *	next
	double linked list with sentinel
struct gl_light *	prev
GLfloat	Ambient [4]
	ambient color
GLfloat	Diffuse [4]
	diffuse color
GLfloat	Specular [4]
	specular color
GLfloat	EyePosition [4]
	position in eye coordinates
GLfloat	SpotDirection [4]
	spotlight direction in eye coordinates
GLfloat	SpotExponent
GLfloat	SpotCutoff
	in degrees
GLfloat	_CosCutoffNeg
	= cos(SpotCutoff)
GLfloat	_CosCutoff
	= MAX(0, cos(SpotCutoff))
GLfloat	ConstantAttenuation
GLfloat	LinearAttenuation
GLfloat	QuadraticAttenuation
GLboolean	Enabled
	On/off flag.
Derived fields
GLbitfield	_Flags
	State.
GLfloat	_Position [4]
	position in eye/obj coordinates
GLfloat	_VP_inf_norm [3]
	Norm direction to infinite light.
GLfloat	_h_inf_norm [3]
	Norm( _VP_inf_norm + <0,0,1> ).
GLfloat	_NormSpotDirection [4]
	normalized spotlight direction
GLfloat	_VP_inf_spot_attenuation
GLfloat	_SpotExpTable [EXP_TABLE_SIZE][2]
	to replace a pow() call
GLfloat	_MatAmbient [2][3]
	material ambient * light ambient
GLfloat	_MatDiffuse [2][3]
	material diffuse * light diffuse
GLfloat	_MatSpecular [2][3]
	material spec * light specular
GLfloat	_dli
	CI diffuse light intensity.
GLfloat	_sli
	CI specular light intensity.

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Field Documentation

struct gl_light* gl_light::next [read]

double linked list with sentinel

struct gl_light* gl_light::prev [read]

GLfloat gl_light::Ambient[4]

ambient color

GLfloat gl_light::Diffuse[4]

diffuse color

GLfloat gl_light::Specular[4]

specular color

GLfloat gl_light::EyePosition[4]

position in eye coordinates

GLfloat gl_light::SpotDirection[4]

spotlight direction in eye coordinates

GLfloat gl_light::SpotExponent

GLfloat gl_light::SpotCutoff

in degrees

GLfloat gl_light::_CosCutoffNeg

= cos(SpotCutoff)

GLfloat gl_light::_CosCutoff

= MAX(0, cos(SpotCutoff))

GLfloat gl_light::ConstantAttenuation

GLfloat gl_light::LinearAttenuation

GLfloat gl_light::QuadraticAttenuation

GLboolean gl_light::Enabled

On/off flag.

GLbitfield gl_light::_Flags

State.

GLfloat gl_light::_Position[4]

position in eye/obj coordinates

GLfloat gl_light::_VP_inf_norm[3]

Norm direction to infinite light.

GLfloat gl_light::_h_inf_norm[3]

Norm( _VP_inf_norm + <0,0,1> ).

GLfloat gl_light::_NormSpotDirection[4]

normalized spotlight direction

GLfloat gl_light::_VP_inf_spot_attenuation

GLfloat gl_light::_SpotExpTable[EXP_TABLE_SIZE][2]

to replace a pow() call

GLfloat gl_light::_MatAmbient[2][3]

material ambient * light ambient

GLfloat gl_light::_MatDiffuse[2][3]

material diffuse * light diffuse

GLfloat gl_light::_MatSpecular[2][3]

material spec * light specular

GLfloat gl_light::_dli

CI diffuse light intensity.

GLfloat gl_light::_sli

CI specular light intensity.

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The documentation for this struct was generated from the following file:

• mtypes.h

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