38 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			38 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
///////////////////////////////////////////////////////////////////////////////////////////////////
 | 
						|
// OpenGL Mathematics Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net)
 | 
						|
///////////////////////////////////////////////////////////////////////////////////////////////////
 | 
						|
// Created : 2013-10-25
 | 
						|
// Updated : 2013-10-25
 | 
						|
// Licence : This source is under MIT licence
 | 
						|
// File    : test/gtx/fast_square_root.cpp
 | 
						|
///////////////////////////////////////////////////////////////////////////////////////////////////
 | 
						|
 | 
						|
#define GLM_FORCE_RADIANS
 | 
						|
#include <glm/gtx/fast_square_root.hpp>
 | 
						|
#include <glm/gtc/type_precision.hpp>
 | 
						|
#include <glm/gtc/epsilon.hpp>
 | 
						|
#include <glm/vector_relational.hpp>
 | 
						|
 | 
						|
int test_fastInverseSqrt()
 | 
						|
{
 | 
						|
	int Error(0);
 | 
						|
 | 
						|
	Error += glm::epsilonEqual(glm::fastInverseSqrt(1.0f), 1.0f, 0.01f) ? 0 : 1;
 | 
						|
	Error += glm::epsilonEqual(glm::fastInverseSqrt(1.0), 1.0, 0.01) ? 0 : 1;
 | 
						|
	Error += glm::all(glm::epsilonEqual(glm::fastInverseSqrt(glm::vec2(1.0f)), glm::vec2(1.0f), 0.01f)) ? 0 : 1;
 | 
						|
	Error += glm::all(glm::epsilonEqual(glm::fastInverseSqrt(glm::dvec3(1.0)), glm::dvec3(1.0), 0.01)) ? 0 : 1;
 | 
						|
	Error += glm::all(glm::epsilonEqual(glm::fastInverseSqrt(glm::dvec4(1.0)), glm::dvec4(1.0), 0.01)) ? 0 : 1;
 | 
						|
 | 
						|
	
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
int main()
 | 
						|
{
 | 
						|
	int Error(0);
 | 
						|
 | 
						|
	Error += test_fastInverseSqrt();
 | 
						|
 | 
						|
	return Error;
 | 
						|
}
 |