Gradients

touchgfx/TextureMapTypes.hpp

Gradients contains all the data to interpolate u,v texture coordinates and z coordinates across a planar surface.

Public Functions

	Gradients(const Point3D * vertices)
	Initializes a new instance of the TextureMapTypes class.

Public Attributes

float	dOneOverZdX
	d(1/z)/dX
float	dOneOverZdY
	d(1/z)/dY
fixed16_16	dUdXModifier
	The dUdX x coordinate modifier.
float	dUOverZdX
	d(u/z)/dX
float	dUOverZdY
	d(u/z)/dY
fixed16_16	dVdXModifier
	The dVdX x coordinate modifier.
float	dVOverZdX
	d(v/z)/dX
float	dVOverZdY
	d(v/z)/dY
float	oneOverZ
	1/z for each vertex
float	UOverZ
	u/z for each vertex
float	VOverZ
	v/z for each vertex

Public Functions Documentation

Gradients

Gradients	(	const Point3D *	vertices	)

Initializes a new instance of the TextureMapTypes class.

Construct the gradients using three 3D vertices.

Parameters:

vertices	The vertices.

See also:

Point3D

Public Attributes Documentation

dOneOverZdX

float dOneOverZdX

d(1/z)/dX

dOneOverZdY

float dOneOverZdY

d(1/z)/dY

dUdXModifier

fixed16_16 dUdXModifier

The dUdX x coordinate modifier.

dUOverZdX

float dUOverZdX

d(u/z)/dX

dUOverZdY

float dUOverZdY

d(u/z)/dY

dVdXModifier

fixed16_16 dVdXModifier

The dVdX x coordinate modifier.

dVOverZdX

float dVOverZdX

d(v/z)/dX

dVOverZdY

float dVOverZdY

d(v/z)/dY

oneOverZ

float oneOverZ

1/z for each vertex

UOverZ

float UOverZ

u/z for each vertex

VOverZ

float VOverZ

v/z for each vertex