Public Member Functions
	VArray (const ChannelSetInit c)

	VArray (const ChannelSet &c)

	VArray (Channel c)

	VArray (const VArray &b)

float &	operator[] (Channel z)

const float &	operator[] (Channel z) const

float *	array ()

VArray &	operator= (const VArray &v)

Vector4 &	P () const

float	x () const

float	y () const

float	z () const

float	w () const

Vector3 &	PL () const

Vector3 &	PW () const

Vector3 &	MB () const

Vector4 &	UV () const

Vector3 &	N () const

Vector4 &	Cf () const

float	r () const

float	g () const

float	b () const

float	a () const

Vector3 &	VEL () const

void	lerp (const VArray &b, float t)

void	offset (const VArray &b, const VArray &delta, float t)

void	scale (float s)

void	offset (const VArray &b, const VArray &dx, float x, const VArray &dy, float y)

void	midpoint (const VArray &a, const VArray &b)

void	w_normalize ()
	Divide all the channels by w, and put 1/w into w. More...

Public Attributes
ChannelSet	channels

float	chan [VARRAY_CHANS]

Detailed Description

Array of floating point numbers that are interpolated across a primitive. A VertexContext contains 4 of these: the current value, the derivatives horizontally and vertically, and the value at X=0.

Member Function Documentation

void DD::Image::VArray::lerp	(	const VArray &	b,
		float	t
	)

inline

Destructive linear interpolate between this and VArray b by t.

void DD::Image::VArray::offset	(	const VArray &	b,
		const VArray &	delta,
		float	t
	)

inline

Sets it to b+delta*t

void DD::Image::VArray::scale ( float s )

inline

Scale the VArray.

void DD::Image::VArray::offset	(	const VArray &	b,
		const VArray &	dx,
		float	x,
		const VArray &	dy,
		float	y
	)

inline

Sets it to b+dx*x+dy*y

void DD::Image::VArray::midpoint	(	const VArray &	a,
		const VArray &	b
	)

inline

Sets it to the midpoint between a and b ((a+b)/2).

void VArray::w_normalize ( )

Divide all the channels by w, and put 1/w into w.

Divide all the channels by w, and put 1/w into w. The resulting values can then be linearly interpolated in screen space. Don't forget to divide by w to get the original values back, unless the divided value is useful (which is only true for xyz).

Referenced by DD::Image::rPoint::add_to_render().

Public Member Functions

Public Attributes

Detailed Description

Member Function Documentation