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68 lines
2.0 KiB
68 lines
2.0 KiB
14 years ago
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#ifndef Magnum_SceneGraph_Camera3D_hpp
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#define Magnum_SceneGraph_Camera3D_hpp
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/*
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz>
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This file is part of Magnum.
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Magnum is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License version 3
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only, as published by the Free Software Foundation.
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Magnum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License version 3 for more details.
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*/
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/** @file
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* @brief @ref compilation-speedup-hpp "Template implementation" for Camera3D.h
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*/
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#include "AbstractCamera.hpp"
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#include "Camera3D.h"
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using namespace std;
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namespace Magnum { namespace SceneGraph {
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template<class T> Camera3D<T>* Camera3D<T>::setOrthographic(const Math::Vector2<T>& size, T near, T far) {
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_near = near;
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_far = far;
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Math::Vector2<T> xyScale = T(2.0)/size;
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T zScale = T(2.0)/(near-far);
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AbstractCamera<3, T>::rawProjectionMatrix = Math::Matrix4<T>(
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xyScale.x(), T(0.0), T(0.0), T(0.0),
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T(0.0), xyScale.y(), T(0.0), T(0.0),
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T(0.0), T(0.0), zScale, T(0.0),
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T(0.0), T(0.0), near*zScale-1, T(1.0)
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);
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AbstractCamera<3, T>::fixAspectRatio();
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return this;
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}
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template<class T> Camera3D<T>* Camera3D<T>::setPerspective(T fov, T near, T far) {
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_near = near;
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_far = far;
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T xyScale = T(1.0)/tan(fov/2); /* == near/size */
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T zScale = T(1.0)/(near-far);
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AbstractCamera<3, T>::rawProjectionMatrix = Matrix4(
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xyScale, T(0.0), T(0.0), T(0.0),
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T(0.0), xyScale, T(0.0), T(0.0),
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T(0.0), T(0.0), (far+near)*zScale, T(-1.0),
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T(0.0), T(0.0), (2*far*near)*zScale, T(0.0)
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);
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AbstractCamera<3, T>::fixAspectRatio();
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return this;
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}
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}}
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#endif
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