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Added test for fastSin #231

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This commit is contained in:
Christophe Riccio 2014-09-16 01:35:29 +02:00
parent ec513f4466
commit 46e61b4f07
1 changed files with 19 additions and 0 deletions
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19
test/gtx/gtx_fast_trigonometry.cpp
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@ -9,10 +9,29 @@
#include <glm/gtc/type_precision.hpp>
#include <glm/gtx/fast_trigonometry.hpp>
#include <glm/gtc/constants.hpp>
int test_fastSin()
{
int Error(0);
float DiffMax = 0.0f;
for(std::size_t i = 0; i < 10000; ++i)
{
float angle = glm::pi<float>() * 2.0f / static_cast<float>(i + 1);
float A = glm::sin(angle);
float B = glm::fastSin(angle);
DiffMax = glm::max(DiffMax, glm::abs(B - A));
}
return Error;
}
int main()
{
int Error(0);
Error += test_fastSin();
return Error;
}