G3D::Texture::Visualization Class Reference

Public Types
enum	Channels {   RGB,   R,   G,   B,   RasL,   GasL,   BasL,   AasL,   MeanRGBasL,   Luminance }
	Which channels to display. More...

Public Member Functions
	Visualization (Channels c=RGB, float g=1.0f, float mn=0.0f, float mx=1.0f)
	Defaults to linear data on [0, 1]: packed normal maps, reflectance maps, etc.
	Visualization (const Any &a)
	Accepts the name of any static factory method as an Any::ARRAY, e.g., "v = sRGB()" or a table, e.g., "v = Texture::Visualization { documentGamma = 2.2, ... }".
bool	needsShader () const
	True if these settings require the use of a GLSL shader.
bool	operator== (const Visualization &v) const
Any	toAny () const

Static Public Member Functions
static const Visualization &	bumpInAlpha ()
	For bump map packed in an alpha channel.
static const Visualization &	defaults ()
static const Visualization &	depthBuffer ()
	For a hyperbolic depth map in the red channel (e.g., a shadow map).
static const Visualization &	linearRGB ()
	Linear RGB map.
static const Visualization &	packedUnitVector ()
	Unit vectors packed into RGB channels, e.g.
static const Visualization &	radiance ()
	Radiance map.
static const Visualization &	reflectivity ()
	Reflectivity map.
static const Visualization &	sRGB ()
	For photographs and other images with document gamma of about 2.2.
static const Visualization &	unitVector ()
	For signed unit vectors, like a GBuffer's normals, on the range [-1, 1] for RGB channels.

Public Attributes
Channels	channels
float	documentGamma
	Texture's gamma.
bool	invertIntensity
	If true, show as 1 - (adjusted value)
float	max
	Highest expected value.
float	min
	Lowest expected value.

Member Enumeration Documentation

enum G3D::Texture::Visualization::Channels

Which channels to display.

Enumerator:

RGB	RGB as a color.
R	Red only.
G	Green only.
B	Blue only.
RasL	Red as grayscale.
GasL	Green as grayscale.
BasL	Blue as grayscale.
AasL	Alpha as grayscale.
MeanRGBasL	RGB mean as luminance: (R + G + B) / 3; visualizes the net reflectance or energy of a texture.
Luminance	(Perceptual) Luminance; visualizes the brightness people perceive of an image.

Constructor & Destructor Documentation

G3D::Texture::Visualization::Visualization	(	Channels	c = RGB,
		float	g = 1.0f,
		float	mn = 0.0f,
		float	mx = 1.0f
	)

Defaults to linear data on [0, 1]: packed normal maps, reflectance maps, etc.

G3D::Texture::Visualization::Visualization

(

const Any &

a

)

Accepts the name of any static factory method as an Any::ARRAY, e.g., "v = sRGB()" or a table, e.g., "v = Texture::Visualization { documentGamma = 2.2, ... }".

Member Function Documentation

static const Visualization& G3D::Texture::Visualization::bumpInAlpha ( )

static

For bump map packed in an alpha channel.

static const Visualization& G3D::Texture::Visualization::defaults ( )

static

Referenced by linearRGB(), packedUnitVector(), radiance(), and reflectivity().

static const Visualization& G3D::Texture::Visualization::depthBuffer ( )

static

For a hyperbolic depth map in the red channel (e.g., a shadow map).

static const Visualization& G3D::Texture::Visualization::linearRGB ( )

inlinestatic

Linear RGB map.

Same as defaults()

bool G3D::Texture::Visualization::needsShader

(

)

const

True if these settings require the use of a GLSL shader.

bool G3D::Texture::Visualization::operator== ( const Visualization &  v ) const

inline

static const Visualization& G3D::Texture::Visualization::packedUnitVector ( )

inlinestatic

Unit vectors packed into RGB channels, e.g.

a normal map. Same as defaults()

static const Visualization& G3D::Texture::Visualization::radiance ( )

inlinestatic

Radiance map.

Same as defaults()

static const Visualization& G3D::Texture::Visualization::reflectivity ( )

inlinestatic

Reflectivity map.

Same as defaults()

static const Visualization& G3D::Texture::Visualization::sRGB ( )

static

For photographs and other images with document gamma of about 2.2.

Note that this does not actually match true sRGB values, which have a non-linear gamma.

Any G3D::Texture::Visualization::toAny

(

)

const

static const Visualization& G3D::Texture::Visualization::unitVector ( )

static

For signed unit vectors, like a GBuffer's normals, on the range [-1, 1] for RGB channels.

Member Data Documentation

Channels G3D::Texture::Visualization::channels

Referenced by operator==().

float G3D::Texture::Visualization::documentGamma

Texture's gamma.

Texels will be converted to pixels by p = t^(g/2.2)

Referenced by operator==().

bool G3D::Texture::Visualization::invertIntensity

If true, show as 1 - (adjusted value)

Referenced by operator==().

float G3D::Texture::Visualization::max

Highest expected value.

Referenced by operator==().

float G3D::Texture::Visualization::min

Lowest expected value.

Referenced by operator==().