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/**************************************************************************/
/* test_projection.h */
/**************************************************************************/
/* This file is part of: */
/* REDOT ENGINE */
/* https://redotengine.org */
/**************************************************************************/
/* Copyright (c) 2024-present Redot Engine contributors */
/* (see REDOT_AUTHORS.md) */
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef TEST_PROJECTION_H
#define TEST_PROJECTION_H
#include "core/math/projection.h"
#include "core/string/print_string.h"
#include "tests/test_macros.h"
namespace TestProjection {
TEST_CASE("[Projection] Default construct") {
Projection p;
CHECK(p.columns[0][0] == 1.0);
CHECK(p.columns[0][1] == 0.0);
CHECK(p.columns[0][2] == 0.0);
CHECK(p.columns[0][3] == 0.0);
CHECK(p.columns[1][0] == 0.0);
CHECK(p.columns[1][1] == 1.0);
CHECK(p.columns[1][2] == 0.0);
CHECK(p.columns[1][3] == 0.0);
CHECK(p.columns[2][0] == 0.0);
CHECK(p.columns[2][1] == 0.0);
CHECK(p.columns[2][2] == 1.0);
CHECK(p.columns[2][3] == 0.0);
CHECK(p.columns[3][0] == 0.0);
CHECK(p.columns[3][1] == 0.0);
CHECK(p.columns[3][2] == 0.0);
CHECK(p.columns[3][3] == 1.0);
}
bool projection_is_equal_approx(const Projection &p_a, const Projection &p_b) {
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
if (!Math::is_equal_approx(p_a.columns[i][j], p_b.columns[i][j])) {
return false;
}
}
}
return true;
}
TEST_CASE("[Projection] Orthogonal projection matrix inversion") {
Projection p = Projection::create_orthogonal(-125.0f, 125.0f, -125.0f, 125.0f, 0.01f, 25.0f);
CHECK(projection_is_equal_approx(p.inverse() * p, Projection()));
}
TEST_CASE("[Projection] Perspective projection matrix inversion") {
Projection p = Projection::create_perspective(90.0f, 1.77777f, 0.05f, 4000.0f);
CHECK(projection_is_equal_approx(p.inverse() * p, Projection()));
}
} //namespace TestProjection
#endif // TEST_PROJECTION_H
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