42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include "MorphableCamera.hpp"
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namespace OpenVulkano::Scene
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{
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namespace
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{
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Math::Matrix4f BlendMatrices(const Math::Matrix4f& mat1, const Math::Matrix4f& mat2, float t)
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{
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Math::Matrix4f result;
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for (int i = 0; i < 4; ++i)
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{
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result[i] = Math::Utils::mix(mat1[i], mat2[i], t);
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}
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return result;
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}
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}
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void MorphableCamera::UpdateProjectionMatrix()
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{
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PerspectiveCamera::UpdateProjectionMatrix();
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if (m_morphState != 0)
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{
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const float scale = 0.5f * m_contentScaleFactor * m_zoom;
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const float widthHalf = m_width * scale, heightHalf = m_height * scale;
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m_orthoMatrix = Math::Utils::orthoRH_ZO(-widthHalf, widthHalf, -heightHalf, heightHalf, m_nearPlane, m_farPlane);
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if (m_morphState == 1)
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{
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m_projection = m_orthoMatrix;
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}
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else
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{
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m_projection = BlendMatrices(m_projection, m_orthoMatrix, m_morphState);
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}
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UpdateViewProjectionMatrix();
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}
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}
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} |