inline double turbulence(module::Perlin& noise, const osg::Vec3d& v, double f )
{
double t = -0.5;
for( ; f<getPixelsPerTile()/2; f *= 2 )
t += abs(noise.GetValue(v.x(), v.y(), v.z())/f);
return t;
}
void VoxelChunkCL::createNoiseArrayFromPerlinNoise(module::Perlin perlinModule, float zOffset) {
int index = 0;
float height = 0;
int size = gridSize[0] * gridSize[1] * gridSize[2];
float* volume = new float[size];
for (int i = 0; i < gridSize[0]; i++) {
for (int j = 0; j < gridSize[1]; j++) {
for (int k = 0; k < gridSize[2]; k++) {
height = round(perlinModule.GetValue(i * 0.01, j * 0.01, (k + zOffset) * 0.01) * 20) + 15;
volume[index++] = (float)height;
}
}
}
cl_image_format volumeFormat;
volumeFormat.image_channel_order = CL_R;
volumeFormat.image_channel_data_type = CL_FLOAT;
cl_mem_flags flags = CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR;
cl.CreateImage3D(flags, &volumeFormat, gridSize[0], gridSize[1], gridSize[2], 0, 0, volume, volumeData);
free(volume);
}
inline double sample(module::Perlin& noise, const osg::Vec3d& v)
{
return noise.GetValue(v.x(), v.y(), v.z());
}
inline double sample(module::Perlin& noise, double x, double y, double z)
{
return noise.GetValue(x, y, z);
}