/** * @file v3math_test.cpp * @author Adroit * @date 2007-02 * @brief v3math test cases. * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ #include "linden_common.h" #include "../test/lltut.h" #include "llsd.h" #include "../llquaternion.h" #include "../llquantize.h" #include "../v3dmath.h" #include "../m3math.h" #include "../v4math.h" #include "../v3math.h" namespace tut { struct v3math_data { }; typedef test_group v3math_test; typedef v3math_test::object v3math_object; tut::v3math_test v3math_testcase("v3math"); template<> template<> void v3math_object::test<1>() { LLVector3 vec3; ensure("1:LLVector3:Fail to initialize ", ((0.f == vec3.mV[VX]) && (0.f == vec3.mV[VY]) && (0.f == vec3.mV[VZ]))); F32 x = 2.32f, y = 1.212f, z = -.12f; LLVector3 vec3a(x,y,z); ensure("2:LLVector3:Fail to initialize ", ((2.32f == vec3a.mV[VX]) && (1.212f == vec3a.mV[VY]) && (-.12f == vec3a.mV[VZ]))); const F32 vec[3] = {1.2f ,3.2f, -4.2f}; LLVector3 vec3b(vec); ensure("3:LLVector3:Fail to initialize ", ((1.2f == vec3b.mV[VX]) && (3.2f == vec3b.mV[VY]) && (-4.2f == vec3b.mV[VZ]))); } template<> template<> void v3math_object::test<2>() { F32 x = 2.32f, y = 1.212f, z = -.12f; LLVector3 vec3(x,y,z); LLVector3d vector3d(vec3); LLVector3 vec3a(vector3d); ensure("1:LLVector3:Fail to initialize ", vec3 == vec3a); LLVector4 vector4(vec3); LLVector3 vec3b(vector4); ensure("2:LLVector3:Fail to initialize ", vec3 == vec3b); } template<> template<> void v3math_object::test<3>() { S32 a = 231; LLSD llsd(a); LLVector3 vec3(llsd); LLSD sd = vec3.getValue(); LLVector3 vec3a(sd); ensure("1:LLVector3:Fail to initialize ", (vec3 == vec3a)); } template<> template<> void v3math_object::test<4>() { S32 a = 231; LLSD llsd(a); LLVector3 vec3(llsd),vec3a; vec3a = vec3; ensure("1:Operator= Fail to initialize " ,(vec3 == vec3a)); } template<> template<> void v3math_object::test<5>() { F32 x = 2.32f, y = 1.212f, z = -.12f; LLVector3 vec3(x,y,z); ensure("1:isFinite= Fail to initialize ", (TRUE == vec3.isFinite()));//need more test cases: vec3.clearVec(); ensure("2:clearVec:Fail to set values ", ((0.f == vec3.mV[VX]) && (0.f == vec3.mV[VY]) && (0.f == vec3.mV[VZ]))); vec3.setVec(x,y,z); ensure("3:setVec:Fail to set values ", ((2.32f == vec3.mV[VX]) && (1.212f == vec3.mV[VY]) && (-.12f == vec3.mV[VZ]))); vec3.zeroVec(); ensure("4:zeroVec:Fail to set values ", ((0.f == vec3.mV[VX]) && (0.f == vec3.mV[VY]) && (0.f == vec3.mV[VZ]))); } template<> template<> void v3math_object::test<6>() { F32 x = 2.32f, y = 1.212f, z = -.12f; LLVector3 vec3(x,y,z),vec3a; vec3.abs(); ensure("1:abs:Fail ", ((x == vec3.mV[VX]) && (y == vec3.mV[VY]) && (-z == vec3.mV[VZ]))); vec3a.setVec(vec3); ensure("2:setVec:Fail to initialize ", (vec3a == vec3)); const F32 vec[3] = {1.2f ,3.2f, -4.2f}; vec3.clearVec(); vec3.setVec(vec); ensure("3:setVec:Fail to initialize ", ((1.2f == vec3.mV[VX]) && (3.2f == vec3.mV[VY]) && (-4.2f == vec3.mV[VZ]))); vec3a.clearVec(); LLVector3d vector3d(vec3); vec3a.setVec(vector3d); ensure("4:setVec:Fail to initialize ", (vec3 == vec3a)); LLVector4 vector4(vec3); vec3a.clearVec(); vec3a.setVec(vector4); ensure("5:setVec:Fail to initialize ", (vec3 == vec3a)); } template<> template<> void v3math_object::test<7>() { F32 x = 2.32f, y = 3.212f, z = -.12f; F32 min = 0.0001f, max = 3.0f; LLVector3 vec3(x,y,z); ensure("1:clamp:Fail ", TRUE == vec3.clamp(min, max) && x == vec3.mV[VX] && max == vec3.mV[VY] && min == vec3.mV[VZ]); x = 1.f, y = 2.2f, z = 2.8f; vec3.setVec(x,y,z); ensure("2:clamp:Fail ", FALSE == vec3.clamp(min, max)); } template<> template<> void v3math_object::test<8>() { F32 x = 2.32f, y = 1.212f, z = -.12f; LLVector3 vec3(x,y,z); ensure("1:magVecSquared:Fail ", is_approx_equal(vec3.magVecSquared(), (x*x + y*y + z*z))); ensure("2:magVec:Fail ", is_approx_equal(vec3.magVec(), fsqrtf(x*x + y*y + z*z))); } template<> template<> void v3math_object::test<9>() { F32 x =-2.0f, y = -3.0f, z = 1.23f ; LLVector3 vec3(x,y,z); ensure("1:abs():Fail ", (TRUE == vec3.abs())); ensure("2:isNull():Fail", (FALSE == vec3.isNull())); //Returns TRUE if vector has a _very_small_ length x =.00000001f, y = .000001001f, z = .000001001f; vec3.setVec(x,y,z); ensure("3:isNull(): Fail ", (TRUE == vec3.isNull())); } template<> template<> void v3math_object::test<10>() { F32 x =-2.0f, y = -3.0f, z = 1.f ; LLVector3 vec3(x,y,z),vec3a; ensure("1:isExactlyZero():Fail ", (TRUE == vec3a.isExactlyZero())); vec3a = vec3a.scaleVec(vec3); ensure("2:scaleVec: Fail ", vec3a.mV[VX] == 0.f && vec3a.mV[VY] == 0.f && vec3a.mV[VZ] == 0.f); vec3a.setVec(x,y,z); vec3a = vec3a.scaleVec(vec3); ensure("3:scaleVec: Fail ", ((4 == vec3a.mV[VX]) && (9 == vec3a.mV[VY]) &&(1 == vec3a.mV[VZ]))); ensure("4:isExactlyZero():Fail ", (FALSE == vec3.isExactlyZero())); } template<> template<> void v3math_object::test<11>() { F32 x =20.0f, y = 30.0f, z = 15.f ; F32 angle = 100.f; LLVector3 vec3(x,y,z),vec3a(1.f,2.f,3.f); vec3a = vec3a.rotVec(angle, vec3); LLVector3 vec3b(1.f,2.f,3.f); vec3b = vec3b.rotVec(angle, vec3); ensure_equals("rotVec():Fail" ,vec3b,vec3a); } template<> template<> void v3math_object::test<12>() { F32 x =-2.0f, y = -3.0f, z = 1.f ; LLVector3 vec3(x,y,z); ensure("1:operator [] failed",( x == vec3[0])); ensure("2:operator [] failed",( y == vec3[1])); ensure("3:operator [] failed",( z == vec3[2])); vec3.clearVec(); x = 23.f, y = -.2361f, z = 3.25; vec3.setVec(x,y,z); F32 &ref1 = vec3[0]; ensure("4:operator [] failed",( ref1 == vec3[0])); F32 &ref2 = vec3[1]; ensure("5:operator [] failed",( ref2 == vec3[1])); F32 &ref3 = vec3[2]; ensure("6:operator [] failed",( ref3 == vec3[2])); } template<> template<> void v3math_object::test<13>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, x2 = -2.3f, y2 = 1.11f, z2 = 1234.234f; F32 val1, val2, val3; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2), vec3b; vec3b = vec3 + vec3a ; val1 = x1+x2; val2 = y1+y2; val3 = z1+z2; ensure("1:operator+ failed",(val1 == vec3b.mV[VX]) && (val2 == vec3b.mV[VY]) && (val3 == vec3b.mV[VZ])); vec3.clearVec(); vec3a.clearVec(); vec3b.clearVec(); x1 = -.235f, y1 = -24.32f,z1 = 2.13f, x2 = -2.3f, y2 = 1.f, z2 = 34.21f; vec3.setVec(x1,y1,z1); vec3a.setVec(x2,y2,z2); vec3b = vec3 + vec3a; val1 = x1+x2; val2 = y1+y2; val3 = z1+z2; ensure("2:operator+ failed",(val1 == vec3b.mV[VX]) && (val2 == vec3b.mV[VY]) && (val3 == vec3b.mV[VZ])); } template<> template<> void v3math_object::test<14>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, x2 = -2.3f, y2 = 1.11f, z2 = 1234.234f; F32 val1, val2, val3; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2), vec3b; vec3b = vec3 - vec3a ; val1 = x1-x2; val2 = y1-y2; val3 = z1-z2; ensure("1:operator- failed",(val1 == vec3b.mV[VX]) && (val2 == vec3b.mV[VY]) && (val3 == vec3b.mV[VZ])); vec3.clearVec(); vec3a.clearVec(); vec3b.clearVec(); x1 = -.235f, y1 = -24.32f,z1 = 2.13f, x2 = -2.3f, y2 = 1.f, z2 = 34.21f; vec3.setVec(x1,y1,z1); vec3a.setVec(x2,y2,z2); vec3b = vec3 - vec3a; val1 = x1-x2; val2 = y1-y2; val3 = z1-z2; ensure("2:operator- failed",(val1 == vec3b.mV[VX]) && (val2 == vec3b.mV[VY]) && (val3 == vec3b.mV[VZ])); } template<> template<> void v3math_object::test<15>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, x2 = -2.3f, y2 = 1.11f, z2 = 1234.234f; F32 val1, val2, val3; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2); val1 = vec3 * vec3a; val2 = x1*x2 + y1*y2 + z1*z2; ensure_equals("1:operator* failed",val1,val2); vec3a.clearVec(); F32 mulVal = 4.332f; vec3a = vec3 * mulVal; val1 = x1*mulVal; val2 = y1*mulVal; val3 = z1*mulVal; ensure("2:operator* failed",(val1 == vec3a.mV[VX]) && (val2 == vec3a.mV[VY])&& (val3 == vec3a.mV[VZ])); vec3a.clearVec(); vec3a = mulVal * vec3; ensure("3:operator* failed ", (val1 == vec3a.mV[VX]) && (val2 == vec3a.mV[VY])&& (val3 == vec3a.mV[VZ])); } template<> template<> void v3math_object::test<16>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, x2 = -2.3f, y2 = 1.11f, z2 = 1234.234f; F32 val1, val2, val3; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2), vec3b; vec3b = vec3 % vec3a ; val1 = y1*z2 - y2*z1; val2 = z1*x2 -z2*x1; val3 = x1*y2-x2*y1; ensure("1:operator% failed",(val1 == vec3b.mV[VX]) && (val2 == vec3b.mV[VY]) && (val3 == vec3b.mV[VZ])); vec3.clearVec(); vec3a.clearVec(); vec3b.clearVec(); x1 =112.f, y1 = 22.3f,z1 = 1.2f, x2 = -2.3f, y2 = 341.11f, z2 = 1234.234f; vec3.setVec(x1,y1,z1); vec3a.setVec(x2,y2,z2); vec3b = vec3 % vec3a ; val1 = y1*z2 - y2*z1; val2 = z1*x2 -z2*x1; val3 = x1*y2-x2*y1; ensure("2:operator% failed ", (val1 == vec3b.mV[VX]) && (val2 == vec3b.mV[VY]) && (val3 == vec3b.mV[VZ])); } template<> template<> void v3math_object::test<17>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, div = 3.2f; F32 t = 1.f / div, val1, val2, val3; LLVector3 vec3(x1,y1,z1), vec3a; vec3a = vec3 / div; val1 = x1 * t; val2 = y1 * t; val3 = z1 *t; ensure("1:operator/ failed",(val1 == vec3a.mV[VX]) && (val2 == vec3a.mV[VY]) && (val3 == vec3a.mV[VZ])); vec3a.clearVec(); x1 = -.235f, y1 = -24.32f, z1 = .342f, div = -2.2f; t = 1.f / div; vec3.setVec(x1,y1,z1); vec3a = vec3 / div; val1 = x1 * t; val2 = y1 * t; val3 = z1 *t; ensure("2:operator/ failed",(val1 == vec3a.mV[VX]) && (val2 == vec3a.mV[VY]) && (val3 == vec3a.mV[VZ])); } template<> template<> void v3math_object::test<18>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f; LLVector3 vec3(x1,y1,z1), vec3a(x1,y1,z1); ensure("1:operator== failed",(vec3 == vec3a)); vec3a.clearVec(); x1 = -.235f, y1 = -24.32f, z1 = .342f; vec3.clearVec(); vec3a.clearVec(); vec3.setVec(x1,y1,z1); vec3a.setVec(x1,y1,z1); ensure("2:operator== failed ", (vec3 == vec3a)); } template<> template<> void v3math_object::test<19>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, x2 =112.f, y2 = 2.234f,z2 = 11.2f;; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2); ensure("1:operator!= failed",(vec3a != vec3)); vec3.clearVec(); vec3.clearVec(); vec3a.setVec(vec3); ensure("2:operator!= failed", ( FALSE == (vec3a != vec3))); } template<> template<> void v3math_object::test<20>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, x2 =112.f, y2 = 2.2f,z2 = 11.2f;; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2); vec3a += vec3; F32 val1, val2, val3; val1 = x1+x2; val2 = y1+y2; val3 = z1+z2; ensure("1:operator+= failed",(val1 == vec3a.mV[VX]) && (val2 == vec3a.mV[VY])&& (val3 == vec3a.mV[VZ])); } template<> template<> void v3math_object::test<21>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, x2 =112.f, y2 = 2.2f,z2 = 11.2f;; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2); vec3a -= vec3; F32 val1, val2, val3; val1 = x2-x1; val2 = y2-y1; val3 = z2-z1; ensure("1:operator-= failed",(val1 == vec3a.mV[VX]) && (val2 == vec3a.mV[VY])&& (val3 == vec3a.mV[VZ])); } template<> template<> void v3math_object::test<22>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, x2 = -2.3f, y2 = 1.11f, z2 = 1234.234f; F32 val1,val2,val3; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2); vec3a *= vec3; val1 = x1*x2; val2 = y1*y2; val3 = z1*z2; ensure("1:operator*= failed",(val1 == vec3a.mV[VX]) && (val2 == vec3a.mV[VY])&& (val3 == vec3a.mV[VZ])); F32 mulVal = 4.332f; vec3 *=mulVal; val1 = x1*mulVal; val2 = y1*mulVal; val3 = z1*mulVal; ensure("2:operator*= failed ", is_approx_equal(val1, vec3.mV[VX]) && is_approx_equal(val2, vec3.mV[VY]) && is_approx_equal(val3, vec3.mV[VZ])); } template<> template<> void v3math_object::test<23>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, x2 = -2.3f, y2 = 1.11f, z2 = 1234.234f; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2),vec3b; vec3b = vec3a % vec3; vec3a %= vec3; ensure_equals("1:operator%= failed",vec3a,vec3b); } template<> template<> void v3math_object::test<24>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f, div = 3.2f; F32 t = 1.f / div, val1, val2, val3; LLVector3 vec3a(x1,y1,z1); vec3a /= div; val1 = x1 * t; val2 = y1 * t; val3 = z1 *t; ensure("1:operator/= failed",(val1 == vec3a.mV[VX]) && (val2 == vec3a.mV[VY]) && (val3 == vec3a.mV[VZ])); } template<> template<> void v3math_object::test<25>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f; LLVector3 vec3(x1,y1,z1), vec3a; vec3a = -vec3; ensure("1:operator- failed",(-vec3a == vec3)); } template<> template<> void v3math_object::test<26>() { F32 x1 =1.f, y1 = 2.f,z1 = 1.2f; std::ostringstream stream1, stream2; LLVector3 vec3(x1,y1,z1), vec3a; stream1 << vec3; vec3a.setVec(x1,y1,z1); stream2 << vec3a; ensure("1:operator << failed",(stream1.str() == stream2.str())); } template<> template<> void v3math_object::test<27>() { F32 x1 =-2.3f, y1 = 2.f,z1 = 1.2f, x2 = 1.3f, y2 = 1.11f, z2 = 1234.234f; LLVector3 vec3(x1,y1,z1), vec3a(x2,y2,z2); ensure("1:operator< failed", (TRUE == (vec3 < vec3a))); x1 =-2.3f, y1 = 2.f,z1 = 1.2f, x2 = 1.3f, y2 = 2.f, z2 = 1234.234f; vec3.setVec(x1,y1,z1); vec3a.setVec(x2,y2,z2); ensure("2:operator< failed ", (TRUE == (vec3 < vec3a))); x1 =2.3f, y1 = 2.f,z1 = 1.2f, x2 = 1.3f, vec3.setVec(x1,y1,z1); vec3a.setVec(x2,y2,z2); ensure("3:operator< failed ", (FALSE == (vec3 < vec3a))); } template<> template<> void v3math_object::test<28>() { F32 x1 =1.23f, y1 = 2.f,z1 = 4.f; std::string buf("1.23 2. 4"); LLVector3 vec3, vec3a(x1,y1,z1); LLVector3::parseVector3(buf, &vec3); ensure_equals("1:parseVector3 failed", vec3, vec3a); } template<> template<> void v3math_object::test<29>() { F32 x1 =1.f, y1 = 2.f,z1 = 4.f; LLVector3 vec3(x1,y1,z1),vec3a,vec3b; vec3a.setVec(1,1,1); vec3a.scaleVec(vec3); ensure_equals("1:scaleVec failed", vec3, vec3a); vec3a.clearVec(); vec3a.setVec(x1,y1,z1); vec3a.scaleVec(vec3); ensure("2:scaleVec failed", ((1.f ==vec3a.mV[VX])&& (4.f ==vec3a.mV[VY]) && (16.f ==vec3a.mV[VZ]))); } template<> template<> void v3math_object::test<30>() { F32 x1 =-2.3f, y1 = 2.f,z1 = 1.2f, x2 = 1.3f, y2 = 1.11f, z2 = 1234.234f; F32 val = 2.3f,val1,val2,val3; val1 = x1 + (x2 - x1)* val; val2 = y1 + (y2 - y1)* val; val3 = z1 + (z2 - z1)* val; LLVector3 vec3(x1,y1,z1),vec3a(x2,y2,z2); LLVector3 vec3b = lerp(vec3,vec3a,val); ensure("1:lerp failed", ((val1 ==vec3b.mV[VX])&& (val2 ==vec3b.mV[VY]) && (val3 ==vec3b.mV[VZ]))); } template<> template<> void v3math_object::test<31>() { F32 x1 =-2.3f, y1 = 2.f,z1 = 1.2f, x2 = 1.3f, y2 = 1.f, z2 = 1.f; F32 val1,val2; LLVector3 vec3(x1,y1,z1),vec3a(x2,y2,z2); val1 = dist_vec(vec3,vec3a); val2 = fsqrtf((x1 - x2)*(x1 - x2) + (y1 - y2)* (y1 - y2) + (z1 - z2)* (z1 -z2)); ensure_equals("1:dist_vec: Fail ",val2, val1); val1 = dist_vec_squared(vec3,vec3a); val2 =((x1 - x2)*(x1 - x2) + (y1 - y2)* (y1 - y2) + (z1 - z2)* (z1 -z2)); ensure_equals("2:dist_vec_squared: Fail ",val2, val1); val1 = dist_vec_squared2D(vec3, vec3a); val2 =(x1 - x2)*(x1 - x2) + (y1 - y2)* (y1 - y2); ensure_equals("3:dist_vec_squared2D: Fail ",val2, val1); } template<> template<> void v3math_object::test<32>() { F32 x =12.3524f, y = -342.f,z = 4.126341f; LLVector3 vec3(x,y,z); F32 mag = vec3.normVec(); mag = 1.f/ mag; F32 val1 = x* mag, val2 = y* mag, val3 = z* mag; ensure("1:normVec: Fail ", is_approx_equal(val1, vec3.mV[VX]) && is_approx_equal(val2, vec3.mV[VY]) && is_approx_equal(val3, vec3.mV[VZ])); x = 0.000000001f, y = 0.f, z = 0.f; vec3.clearVec(); vec3.setVec(x,y,z); mag = vec3.normVec(); val1 = x* mag, val2 = y* mag, val3 = z* mag; ensure("2:normVec: Fail ", (mag == 0.) && (0. == vec3.mV[VX]) && (0. == vec3.mV[VY])&& (0. == vec3.mV[VZ])); } template<> template<> void v3math_object::test<33>() { F32 x = -202.23412f, y = 123.2312f, z = -89.f; LLVector3 vec(x,y,z); vec.snap(2); ensure("1:snap: Fail ", is_approx_equal(-202.23f, vec.mV[VX]) && is_approx_equal(123.23f, vec.mV[VY]) && is_approx_equal(-89.f, vec.mV[VZ])); } template<> template<> void v3math_object::test<34>() { F32 x = 10.f, y = 20.f, z = -15.f; F32 x1, y1, z1; F32 lowerxy = 0.f, upperxy = 1.0f, lowerz = -1.0f, upperz = 1.f; LLVector3 vec3(x,y,z); vec3.quantize16(lowerxy,upperxy,lowerz,upperz); x1 = U16_to_F32(F32_to_U16(x, lowerxy, upperxy), lowerxy, upperxy); y1 = U16_to_F32(F32_to_U16(y, lowerxy, upperxy), lowerxy, upperxy); z1 = U16_to_F32(F32_to_U16(z, lowerz, upperz), lowerz, upperz); ensure("1:quantize16: Fail ", is_approx_equal(x1, vec3.mV[VX]) && is_approx_equal(y1, vec3.mV[VY]) && is_approx_equal(z1, vec3.mV[VZ])); LLVector3 vec3a(x,y,z); vec3a.quantize8(lowerxy,upperxy,lowerz,upperz); x1 = U8_to_F32(F32_to_U8(x, lowerxy, upperxy), lowerxy, upperxy); y1 = U8_to_F32(F32_to_U8(y, lowerxy, upperxy), lowerxy, upperxy); z1 = U8_to_F32(F32_to_U8(z, lowerz, upperz), lowerz, upperz); ensure("2:quantize8: Fail ", is_approx_equal(x1, vec3a.mV[VX]) && is_approx_equal(y1, vec3a.mV[VY]) && is_approx_equal(z1, vec3a.mV[VZ])); } }