texutil.h File Reference

#include "coreexp.h"
#include "point2.h"
#include "point3.h"
#include "acolor.h"

Go to the source code of this file.

Defines
#define	MAX_OCTAVES   50
#define	NOISE(p)   ((1.0f+noise3DS(p))*.5f)
#define	MAX_CELL_LEVELS   20
Functions
CoreExport float	bias (float a, float b)
CoreExport float	gain (float a, float b)
CoreExport float	clamp (float x, float a, float b)
CoreExport float	boxstep (float a, float b, float x)
CoreExport float	smoothstep (float a, float b, float x)
CoreExport float	mod (float x, float m)
CoreExport int	mod (int x, int m)
CoreExport float	sramp (float x, float a, float b, float d)
CoreExport float	threshold (float x, float a, float b)
CoreExport void	setdebug (int i)
CoreExport float	noise1 (float arg)
CoreExport float	noise2 (Point2 p)
CoreExport float	noise3 (Point3 p)
CoreExport float	noise4 (Point3 p, float time)
CoreExport float	noise3DS (Point3 p)
CoreExport float	turbulence (Point3 &p, float freq)
CoreExport int	Perm (int v)
CoreExport float	fBm1 (float point, float H, float lacunarity, float octaves)
CoreExport float	fBm1 (Point2 point, float H, float lacunarity, float octaves)
CoreExport float	fBm1 (Point3 point, float H, float lacunarity, float octaves)
CoreExport float	spline (float x, int nknots, float *knot)
CoreExport Color	color_spline (float x, int nknots, Color *knot)
int	FLOOR (float x)
float	frac (float x)
float	fmax (float x, float y)
float	fmin (float x, float y)
AColor	AComp (AColor cbot, AColor ctop)
CoreExport void	CellFunction (Point3 v, int n, float *dist, int *celIDs=NULL, Point3 *grads=NULL, float gradSmooth=0.0f)
CoreExport void	FractalCellFunction (Point3 v, float iterations, float lacunarity, int n, float *dist, int *celIDs=NULL, Point3 *grads=NULL, float gradSmooth=0.0f)
CoreExport float	RandFromCellID (int id)

---

Define Documentation

#define MAX_OCTAVES   50

Search for all occurrences

Definition at line 60 of file texutil.h.

#define NOISE

(

p

)

((1.0f+noise3DS(p))*.5f)

Search for all occurrences

Definition at line 78 of file texutil.h.

#define MAX_CELL_LEVELS   20

Search for all occurrences

Definition at line 93 of file texutil.h.

---

Function Documentation

CoreExport float bias	(	float	a,
		float	b
	)

Search for all occurrences

CoreExport float gain	(	float	a,
		float	b
	)

Search for all occurrences

CoreExport float clamp	(	float	x,
		float	a,
		float	b
	)

Search for all occurrences

CoreExport float boxstep	(	float	a,
		float	b,
		float	x
	)

Search for all occurrences

CoreExport float smoothstep	(	float	a,
		float	b,
		float	x
	)

Search for all occurrences

CoreExport float mod	(	float	x,
		float	m
	)

Search for all occurrences

CoreExport int mod	(	int	x,
		int	m
	)

Search for all occurrences

CoreExport float sramp	(	float	x,
		float	a,
		float	b,
		float	d
	)

Search for all occurrences

CoreExport float threshold	(	float	x,
		float	a,
		float	b
	)

Search for all occurrences

CoreExport void setdebug

(

int

i

)

Search for all occurrences

CoreExport float noise1

(

float

arg

)

Search for all occurrences

CoreExport float noise2

(

Point2

p

)

Search for all occurrences

CoreExport float noise3

(

Point3

p

)

Search for all occurrences

CoreExport float noise4	(	Point3	p,
		float	time
	)

Search for all occurrences

CoreExport float noise3DS

(

Point3

p

)

Search for all occurrences

CoreExport float turbulence	(	Point3 &	p,
		float	freq
	)

Search for all occurrences

CoreExport int Perm

(

int

v

)

Search for all occurrences

CoreExport float fBm1	(	float	point,
		float	H,
		float	lacunarity,
		float	octaves
	)

Search for all occurrences

CoreExport float fBm1	(	Point2	point,
		float	H,
		float	lacunarity,
		float	octaves
	)

Search for all occurrences

CoreExport float fBm1	(	Point3	point,
		float	H,
		float	lacunarity,
		float	octaves
	)

Search for all occurrences

CoreExport float spline	(	float	x,
		int	nknots,
		float *	knot
	)

Search for all occurrences

CoreExport Color color_spline	(	float	x,
		int	nknots,
		Color *	knot
	)

Search for all occurrences

int FLOOR

(

float

x

)

[inline]

Search for all occurrences

Definition at line 71 of file texutil.h.

{ return ((int)(x) - ((int)(x)>(x)? 1:0)); }

float frac

(

float

x

)

[inline]

Search for all occurrences

Definition at line 73 of file texutil.h.

{ return x - (float)FLOOR(x); }

float fmax	(	float	x,
		float	y
	)		[inline]

Search for all occurrences

Definition at line 74 of file texutil.h.

{ return x>y?x:y;   }

float fmin	(	float	x,
		float	y
	)		[inline]

Search for all occurrences

Definition at line 75 of file texutil.h.

{ return x<y?x:y;   }

AColor AComp	(	AColor	cbot,
		AColor	ctop
	)		[inline]

Search for all occurrences

Definition at line 81 of file texutil.h.

                                              {
    float ia = 1.0f - ctop.a;
    return (ctop + ia*cbot);
    }

CoreExport void CellFunction	(	Point3	v,
		int	n,
		float *	dist,
		int *	celIDs = NULL,
		Point3 *	grads = NULL,
		float	gradSmooth = 0.0f
	)

Search for all occurrences

CoreExport void FractalCellFunction	(	Point3	v,
		float	iterations,
		float	lacunarity,
		int	n,
		float *	dist,
		int *	celIDs = NULL,
		Point3 *	grads = NULL,
		float	gradSmooth = 0.0f
	)

Search for all occurrences

CoreExport float RandFromCellID

(

int

id

)

Search for all occurrences