1 files changed, 57 insertions, 0 deletions
diff --git a/src/boost/libs/qvm/test/slerp_test.cpp b/src/boost/libs/qvm/test/slerp_test.cpp
new file mode 100644
index 000000000..c0914af30
--- /dev/null
+++ b/src/boost/libs/qvm/test/slerp_test.cpp
@@ -0,0 +1,57 @@
+//Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc.
+
+//Distributed under the Boost Software License, Version 1.0. (See accompanying
+//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/qvm/quat_operations.hpp>
+#include <boost/qvm/quat.hpp>
+#include "test_qvm_quaternion.hpp"
+#include "gold.hpp"
+
+namespace
+    {
+    void
+    test()
+        {
+        using namespace boost::qvm;
+            {
+            test_qvm::quaternion<Q1> a=rotx_quat(1.0f);
+            test_qvm::quaternion<Q1> b=rotx_quat(.5f);
+            test_qvm::quaternion<Q1> aa=slerp(a,b,0);
+            test_qvm::quaternion<Q1> bb=slerp(a,b,1);
+            BOOST_QVM_TEST_CLOSE(aa.a,a.a,0.0001f);
+            BOOST_QVM_TEST_CLOSE(bb.a,b.a,0.0001f);
+            }
+        for( float a1=0; a1<6.28f; a1+=0.3f )
+            {
+            test_qvm::quaternion<Q1> const qx1=rotx_quat(a1);
+            test_qvm::quaternion<Q1> const qy1=roty_quat(a1);
+            test_qvm::quaternion<Q1> const qz1=rotz_quat(a1);
+            for( float a2=0; a2<6.28f; a2+=0.05f )
+                {
+                test_qvm::quaternion<Q1> const qx2=rotx_quat(a2);
+                test_qvm::quaternion<Q1> const qy2=roty_quat(a2);
+                test_qvm::quaternion<Q1> const qz2=rotz_quat(a2);
+                for( float t=0; t<1; t+=0.03f )
+                    {
+                    test_qvm::quaternion<Q1> const qx=rotx_quat(a1*(1-t)+a2*t);
+                    test_qvm::quaternion<Q1> const qy=roty_quat(a1*(1-t)+a2*t);
+                    test_qvm::quaternion<Q1> const qz=rotz_quat(a1*(1-t)+a2*t);
+                    test_qvm::quaternion<Q1> const qsx=slerp(qx1,qx2,t);
+                    test_qvm::quaternion<Q1> const qsy=slerp(qref(qy1),qy2,t);
+                    test_qvm::quaternion<Q1> const qsz=slerp(qz1,qref(qz2),t);
+                    BOOST_QVM_TEST_CLOSE(qx.a,qsx.a,0.001f);
+                    BOOST_QVM_TEST_CLOSE(qy.a,qsy.a,0.001f);
+                    BOOST_QVM_TEST_CLOSE(qz.a,qsz.a,0.001f);
+                    }
+                }
+            }
+        }
+    }
+
+int
+main()
+    {
+    test();
+    return boost::report_errors();
+    }