//// TransformTests.cpp// tests/shared/src//// Copyright 2013-2015 High Fidelity, Inc.//// Distributed under the Apache License, Version 2.0.// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #include "TransformTests.h" #include <algorithm> #include <SharedLogging.h> #include <test-utils/QTestExtensions.h>#include <QtCore/QDebug>#include <Transform.h>#include <StreamUtils.h>#include <glm/glm.hpp> //using namespace glm; const vec3 xAxis(1.0f, 0.0f, 0.0f);const vec3 yAxis(0.0f, 1.0f, 0.0f);const vec3 zAxis(0.0f, 0.0f, 1.0f);const quat rot90 = glm::angleAxis((float)M_PI / 2.0f, yAxis); QTEST_MAIN(TransformTests) const float TEST_EPSILON = 0.001f; void TransformTests::getMatrix() { const vec3 t(0.0f, 0.0f, 10.0f); // create a matrix that is composed of a PI/2 rotation followed by a small z translation const mat4 m(vec4(rot90 * xAxis, 0.0f), vec4(rot90 * yAxis, 0.0f), vec4(rot90 * zAxis, 0.0f), vec4(vec4(t, 1.0f))); // postScale by a mirror about the x axis. const mat4 mirrorX(vec4(-1.0f, 0.0f, 0.0f, 0.0f), vec4( 0.0f, 1.0f, 0.0f, 0.0f), vec4( 0.0f, 0.0f, 1.0f, 0.0f), vec4( 0.0f, 0.0f, 0.0f, 1.0f)); const mat4 result_a = m * mirrorX; Transform xform; xform.setRotation(rot90); xform.setTranslation(t); xform.postScale(vec3(-1.0f, 1.0f, 1.0f)); mat4 result_b; xform.getMatrix(result_b); QCOMPARE_WITH_ABS_ERROR(result_a, result_b, TEST_EPSILON);} void TransformTests::getInverseMatrix() { const vec3 t(0.0f, 0.0f, 10.0f); // create a matrix that is composed of a PI/2 rotation followed by a small z translation const mat4 m(vec4(rot90 * xAxis, 0.0f), vec4(rot90 * yAxis, 0.0f), vec4(rot90 * zAxis, 0.0f), vec4(vec4(t, 1.0f))); // mirror about the x axis. const mat4 mirrorX(vec4(-1.0f, 0.0f, 0.0f, 0.0f), vec4( 0.0f, 1.0f, 0.0f, 0.0f), vec4( 0.0f, 0.0f, 1.0f, 0.0f), vec4( 0.0f, 0.0f, 0.0f, 1.0f)); const mat4 result_a = glm::inverse(m * mirrorX); Transform xform; xform.setTranslation(t); xform.setRotation(rot90); xform.postScale(vec3(-1.0f, 1.0f, 1.0f)); mat4 result_b; xform.getInverseMatrix(result_b); // don't check elements directly, instead compare each axis transformed by the matrix. auto xa = transformPoint(result_a, xAxis); auto ya = transformPoint(result_a, yAxis); auto za = transformPoint(result_a, zAxis); auto xb = transformPoint(result_b, xAxis); auto yb = transformPoint(result_b, yAxis); auto zb = transformPoint(result_b, zAxis); QCOMPARE_WITH_ABS_ERROR(xa, xb, TEST_EPSILON); QCOMPARE_WITH_ABS_ERROR(ya, yb, TEST_EPSILON); QCOMPARE_WITH_ABS_ERROR(za, zb, TEST_EPSILON);}
//
// TransformTests.cpp
// tests/shared/src
//
// Copyright 2013-2015 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include "TransformTests.h"
#include <algorithm>
#include <SharedLogging.h>
#include <test-utils/QTestExtensions.h>
#include <QtCore/QDebug>
#include <Transform.h>
#include <StreamUtils.h>
#include <glm/glm.hpp>
//using namespace glm;
const vec3 xAxis(1.0f, 0.0f, 0.0f);
const vec3 yAxis(0.0f, 1.0f, 0.0f);
const vec3 zAxis(0.0f, 0.0f, 1.0f);
const quat rot90 = glm::angleAxis((float)M_PI / 2.0f, yAxis);
QTEST_MAIN(TransformTests)
const float TEST_EPSILON = 0.001f;
void TransformTests::getMatrix() {
const vec3 t(0.0f, 0.0f, 10.0f);
// create a matrix that is composed of a PI/2 rotation followed by a small z translation
const mat4 m(vec4(rot90 * xAxis, 0.0f),
vec4(rot90 * yAxis, 0.0f),
vec4(rot90 * zAxis, 0.0f),
vec4(vec4(t, 1.0f)));
// postScale by a mirror about the x axis.
const mat4 mirrorX(vec4(-1.0f, 0.0f, 0.0f, 0.0f),
vec4( 0.0f, 1.0f, 0.0f, 0.0f),
vec4( 0.0f, 0.0f, 1.0f, 0.0f),
vec4( 0.0f, 0.0f, 0.0f, 1.0f));
const mat4 result_a = m * mirrorX;
Transform xform;
xform.setRotation(rot90);
xform.setTranslation(t);
xform.postScale(vec3(-1.0f, 1.0f, 1.0f));
mat4 result_b;
xform.getMatrix(result_b);
QCOMPARE_WITH_ABS_ERROR(result_a, result_b, TEST_EPSILON);
}
void TransformTests::getInverseMatrix() {
const vec3 t(0.0f, 0.0f, 10.0f);
// create a matrix that is composed of a PI/2 rotation followed by a small z translation
const mat4 m(vec4(rot90 * xAxis, 0.0f),
vec4(rot90 * yAxis, 0.0f),
vec4(rot90 * zAxis, 0.0f),
vec4(vec4(t, 1.0f)));
// mirror about the x axis.
const mat4 mirrorX(vec4(-1.0f, 0.0f, 0.0f, 0.0f),
vec4( 0.0f, 1.0f, 0.0f, 0.0f),
vec4( 0.0f, 0.0f, 1.0f, 0.0f),
vec4( 0.0f, 0.0f, 0.0f, 1.0f));
const mat4 result_a = glm::inverse(m * mirrorX);
Transform xform;
xform.setTranslation(t);
xform.setRotation(rot90);
xform.postScale(vec3(-1.0f, 1.0f, 1.0f));
mat4 result_b;
xform.getInverseMatrix(result_b);
// don't check elements directly, instead compare each axis transformed by the matrix.
auto xa = transformPoint(result_a, xAxis);
auto ya = transformPoint(result_a, yAxis);
auto za = transformPoint(result_a, zAxis);
auto xb = transformPoint(result_b, xAxis);
auto yb = transformPoint(result_b, yAxis);
auto zb = transformPoint(result_b, zAxis);
QCOMPARE_WITH_ABS_ERROR(xa, xb, TEST_EPSILON);
QCOMPARE_WITH_ABS_ERROR(ya, yb, TEST_EPSILON);
QCOMPARE_WITH_ABS_ERROR(za, zb, TEST_EPSILON);
}