MorphableCamera class

openVulkanoCpp/Scene/MorphableCamera.cpp

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+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#include "MorphableCamera.hpp"
+
+namespace OpenVulkano::Scene
+{
+	namespace
+	{
+		Math::Matrix4f BlendMatrices(const Math::Matrix4f& mat1, const Math::Matrix4f& mat2, float t)
+		{
+			Math::Matrix4f result;
+			for (int i = 0; i < 4; ++i)
+			{
+				for (int j = 0; j < 4; ++j) { result[i][j] = glm::mix(mat1[i][j], mat2[i][j], t); }
+			}
+			return result;
+		}
+	}
+	void MorphableCamera::UpdateProjectionMatrix()
+	{
+		PerspectiveCamera::UpdateProjectionMatrix();
+		float aspectH = m_aspect;
+		float aspectV = 1;
+		m_orthoMatrix = Math::Utils::orthoRH_ZO(-aspectH, aspectH, -aspectV, aspectV, m_nearPlane, m_farPlane);
+		m_projection = BlendMatrices(m_projection, m_orthoMatrix, m_morphState);
+		UpdateViewProjectionMatrix();
+	}
+}