#include <TextureFilter.h>

Inheritance diagram for DD::Image::TextureFilter:

Public Types
enum	{ Nearest , Bilinear , Trilinear , Anisotropic , NumFilters }
	Built-in filter types. More...

Public Types inherited from DD::Image::Filter
enum	{ Impulse , Cubic , Keys , Simon , Rifman , Mitchell , Parzen , Notch , Lanczos4 , Lanczos6 , Sinc4 , NumFilters }

Public Member Functions
	TextureFilter (int type=Filter::Cubic, bool enableMipType=false)

void	knobs (Knob_Callback, const char name="filter", const char label=nullptr)

bool	isMipTypeEnabled () const
	Returns true if the filter instance supports a mipmap filtering type.

bool	isMipMap () const
	Returns true if the filter needs mip levels.

void	initialize ()
	If not a mip map type calls Filter::initialize().

int	type () const
	Filter's assigned type.

void	type (int type)
	Set the filter type.

virtual bool	IsMipMappingFilter (int type) const

Public Member Functions inherited from DD::Image::Filter
int	type () const

void	type (int t)

Knob *	filterKnob ()

	Filter (int type=Cubic)

void	initialize ()

bool	get (float position, float width, Coefficients &) const

bool	impulse () const

bool	interpolative () const

void	knobs (Knob_Callback, const char name="filter", const char label=nullptr)

Protected Attributes
bool	_enableMipType

Protected Attributes inherited from DD::Image::Filter
int	type_
	Enumeration in built-in list.

float *	filter_array
	Filter data in an XY array.

Knob *	filter_knob_

Additional Inherited Members
Static Public Attributes inherited from DD::Image::Filter
static const char *	NAMES []
	Name text array for menus.

static const char *	HELP
	Help text for tooltips.

Detailed Description

Like DD::Image::Filter but specific to sampling textures in a 3d rendering context.

Member Enumeration Documentation

anonymous enum

Built-in filter types.

Enumerator
Nearest	Fastest and crudest, sample the nearest texel from the appropriate mipmap level.
Bilinear	Remove blockiness, sample and interpolate the four nearest texels from the appropriate mipmap level.
Trilinear	Smooth interpolation of texture according to the distance, bilinearly interpolates between two closest mipmap levels.
Anisotropic	Highest quality, gives better result when shading surfaces with a high angle relative to the camera.

virtual bool DD::Image::TextureFilter::IsMipMappingFilter ( int type ) const

inlinevirtual

Does the filter type enum implement mip-mapping? A subclass can redefine this to support additional filter types that mipmap.