#include "common.h"
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "bu.h"
#include "vmath.h"
#include "bn.h"
Go to the source code of this file.
Data Structures | |
struct | str_ht |
struct | fbm_spec |
Defines | |
#define | SMOOTHSTEP(x) ((x) * (x) * (3 - 2*(x))) |
interpolate smoothly from 0 .. 1 | |
#define | MAXSIZE 267 |
#define | INCRSUM(m, s, x, y, z) |
#define | TABLE_SIZE 4096 |
#define | MAGIC_STRHT1 1771561 |
#define | MAGIC_STRHT2 1651771 |
#define | MAGIC_TAB1 9823 |
#define | MAGIC_TAB2 784642 |
#define | CK_HT() |
#define | Hash3d(a, b, c) |
#define | MAGIC_fbm_spec_wgt 0x837592 |
#define | PSCALE(_p, _s) _p[0] *= _s; _p[1] *= _s; _p[2] *= _s |
#define | PCOPY(_d, _s) _d[0] = _s[0]; _d[1] = _s[1]; _d[2] = _s[2] |
#define | CACHE_SPECTRAL_WGTS 1 |
Functions | |
void | bn_noise_init (void) |
double | bn_noise_perlin (fastf_t *point) |
Robert Skinner's Perlin-style "Noise" function. | |
void | bn_noise_vec (fastf_t *point, fastf_t *result) |
struct fbm_spec * | find_spec_wgt (double h, double l, double o) |
double | bn_noise_fbm (fastf_t *point, double h_val, double lacunarity, double octaves) |
Procedural fBm evaluated at "point"; returns value stored in "value". | |
double | bn_noise_turb (fastf_t *point, double h_val, double lacunarity, double octaves) |
Procedural turbulence evaluated at "point";. | |
double | bn_noise_ridged (fastf_t *point, double h_val, double lacunarity, double octaves, double offset) |
A ridged noise pattern. | |
double | bn_noise_mf (fastf_t *point, double h_val, double lacunarity, double octaves, double offset) |
These noise functions provide mostly random noise at the integer lattice points. The functions should be evaluated at non-integer locations for their nature to be realized.
Conatins contributed code from: F. Kenton Musgrave Robert Skinner
Definition in file noise.c.
#define CACHE_SPECTRAL_WGTS 1 |