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framework/scene_graph/components/orthographic_camera.cpp

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+/* Copyright (c) 2023-2024, Arm Limited and Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "orthographic_camera.h"
+
+#include <glm/gtc/matrix_transform.hpp>
+
+namespace vkb
+{
+namespace sg
+{
+OrthographicCamera::OrthographicCamera(const std::string &name) :
+    Camera{name}
+{}
+
+OrthographicCamera::OrthographicCamera(const std::string &name, float left, float right, float bottom, float top, float near_plane, float far_plane) :
+    Camera{name},
+    left{left},
+    right{right},
+    top{top},
+    bottom{bottom},
+    near_plane{near_plane},
+    far_plane{far_plane}
+{
+}
+
+void OrthographicCamera::set_left(float new_left)
+{
+	left = new_left;
+}
+
+float OrthographicCamera::get_left() const
+{
+	return left;
+}
+
+void OrthographicCamera::set_right(float new_right)
+{
+	right = new_right;
+}
+
+float OrthographicCamera::get_right() const
+{
+	return right;
+}
+
+void OrthographicCamera::set_bottom(float new_bottom)
+{
+	bottom = new_bottom;
+}
+
+float OrthographicCamera::get_bottom() const
+{
+	return bottom;
+}
+
+void OrthographicCamera::set_top(float new_top)
+{
+	top = new_top;
+}
+
+float OrthographicCamera::get_top() const
+{
+	return top;
+}
+
+void OrthographicCamera::set_near_plane(float new_near_plane)
+{
+	near_plane = new_near_plane;
+}
+
+float OrthographicCamera::get_near_plane() const
+{
+	return near_plane;
+}
+
+void OrthographicCamera::set_far_plane(float new_far_plane)
+{
+	far_plane = new_far_plane;
+}
+
+float OrthographicCamera::get_far_plane() const
+{
+	return far_plane;
+}
+
+glm::mat4 OrthographicCamera::get_projection()
+{
+	// Note: Using reversed depth-buffer for increased precision, so Znear and Zfar are flipped
+	return glm::ortho(left, right, bottom, top, far_plane, near_plane);
+}
+}        // namespace sg
+}        // namespace vkb