C++ (Cpp) pos_region_scaled示例

示例#1

文件： llwind.cpp 项目： Lirusaito/Voodoo-2

LLVector3 LLWind::getVelocityNoisy(const LLVector3 &pos_region, const F32 dim)
{
	static const LLCachedControl<bool> wind_enabled("WindEnabled",false); 
	if(!wind_enabled)
	{
		return LLVector3(0.f, 0.f, 0.f);
	}
	//  Resolve a value, using fractal summing to perturb the returned value 
	LLVector3 r_val(0,0,0);
	F32 norm = 1.0f;
	if (dim == 8)
	{
		norm = 1.875;
	}
	else if (dim == 4)
	{
		norm = 1.75;
	}
	else if (dim == 2)
	{
		norm = 1.5;
	}

	F32 temp_dim = dim;
	while (temp_dim >= 1.0)
	{
		LLVector3 pos_region_scaled(pos_region * temp_dim);
		r_val += getVelocity(pos_region_scaled) * (1.0f/temp_dim);
		temp_dim /= 2.0;
	}
	
	return r_val * (1.0f/norm) * WIND_SCALE_HACK;
}

示例#2

文件： llwind.cpp 项目： Belxjander/Kirito

LLVector3 LLWind::getVelocityNoisy(const LLVector3 &pos_region, const F32 dim)
{
	//  Resolve a value, using fractal summing to perturb the returned value 
	LLVector3 r_val(0,0,0);
	F32 norm = 1.0f;
	if (dim == 8)
	{
		norm = 1.875;
	}
	else if (dim == 4)
	{
		norm = 1.75;
	}
	else if (dim == 2)
	{
		norm = 1.5;
	}

	F32 temp_dim = dim;
	while (temp_dim >= 1.0)
	{
		LLVector3 pos_region_scaled(pos_region * temp_dim);
		r_val += getVelocity(pos_region_scaled) * (1.0f/temp_dim);
		temp_dim /= 2.0;
	}
	
	return r_val * (1.0f/norm) * WIND_SCALE_HACK;
}