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44 lines
1.1 KiB
44 lines
1.1 KiB
/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// OpenGL Mathematics Copyright (c) 2005 - 2014 G-Truc Creation (www.g-truc.net) |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// Created : 2011-01-15 |
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// Updated : 2011-09-13 |
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// Licence : This source is under MIT licence |
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// File : test/core/func_exponential.cpp |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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#include <glm/common.hpp> |
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#include <glm/exponential.hpp> |
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#include <glm/gtc/ulp.hpp> |
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namespace inversesqrt |
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{ |
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int test() |
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{ |
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int Error(0); |
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glm::uint ulp(0); |
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float diff(0.0f); |
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for(float f = 0.001f; f < 10.f; f *= 1.001f) |
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{ |
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glm::lowp_fvec1 lowp_v = glm::inversesqrt(glm::lowp_fvec1(f)); |
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float defaultp_v = glm::inversesqrt(f); |
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ulp = glm::max(glm::float_distance(lowp_v.x, defaultp_v), ulp); |
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diff = glm::abs(lowp_v.x - defaultp_v); |
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} |
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return Error; |
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} |
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}//namespace inversesqrt |
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int main() |
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{ |
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int Error(0); |
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Error += inversesqrt::test(); |
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return Error; |
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} |
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