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