fill_raw_noise16into8()

void fill_raw_noise16into8	(	uint8_t *	pData,
		uint8_t	num_points,
		uint8_t	octaves,
		uint32_t	x,
		int	scalex,
		uint32_t	time )

Fill a 1D 8-bit buffer with noise, using inoise16()

Parameters

pData	the array of data to fill with noise values
num_points	the number of points of noise to compute
octaves	the number of octaves to use for noise. More octaves = more noise.
x	x-axis coordinate on noise map (1D)
scalex	the scale (distance) between x points when filling in noise
time	the time position for the noise field

Definition at line 683 of file noise.cpp.

                                                                                                                      {
  uint32_t _xx = x;
  uint32_t scx = scale;
  for(int o = 0; o < octaves; ++o) {
    for(int i = 0,xx=_xx; i < num_points; ++i, xx+=scx) {
      uint32_t accum = (inoise16(xx,time))>>o;
      accum += (pData[i]<<8);
      if(accum > 65535) { accum = 65535; }
      pData[i] = accum>>8;
    }
 
    _xx <<= 1;
    scx <<= 1;
  }
}

References inoise16(), octaves, scale, and x.

Referenced by fill_noise16().

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