mirror of https://github.com/mosra/magnum.git
Vladimír Vondruš
14 years ago
9 changed files with 304 additions and 182 deletions
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#ifndef Magnum_SceneGraph_Camera2D_h |
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#define Magnum_SceneGraph_Camera2D_h |
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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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|
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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 Class Magnum::SceneGraph::Camera2D |
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*/ |
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#include "AbstractCamera.h" |
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namespace Magnum { namespace SceneGraph { |
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/**
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@brief Camera for two-dimensional scenes |
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See Drawable documentation for more information. |
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@section Camera2D-explicit-specializations Explicit template specializations |
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The following specialization are explicitly compiled into SceneGraph library. |
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For other specializations you have to use Camera2D.hpp implementation file to |
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avoid linker errors. See @ref compilation-speedup-hpp for more information. |
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- @ref Camera2D "Camera2D<GLfloat>" |
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@see Camera3D, Drawable, DrawableGroup |
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*/ |
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template<class T = GLfloat> class SCENEGRAPH_EXPORT Camera2D: public AbstractCamera<2, T> { |
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public: |
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/**
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* @brief Constructor |
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* @param object %Object holding this feature |
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* |
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* Sets orthographic projection to the default OpenGL cube (range @f$ [-1; 1] @f$ in all directions). |
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* @see setOrthographic() |
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*/ |
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inline Camera2D(AbstractObject<2, T>* object): AbstractCamera<2, T>(object) {} |
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/**
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* @brief Set projection |
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* @param size Size of the view |
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* @return Pointer to self (for method chaining) |
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* |
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* The area of given size will be scaled down to range @f$ [-1; 1] @f$ |
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* on all directions. |
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*/ |
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Camera2D<T>* setProjection(const Math::Vector2<T>& size); |
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/* Overloads to remove WTF-factor from method chaining order */ |
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#ifndef DOXYGEN_GENERATING_OUTPUT |
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inline Camera2D<T>* setAspectRatioPolicy(AspectRatioPolicy policy) { |
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AbstractCamera<2, T>::setAspectRatioPolicy(policy); |
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return this; |
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} |
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#endif |
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}; |
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}} |
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#endif |
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#ifndef Magnum_SceneGraph_Camera2D_hpp |
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#define Magnum_SceneGraph_Camera2D_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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|
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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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|
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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 Camera2D.h |
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*/ |
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#include "AbstractCamera.hpp" |
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#include "Camera2D.h" |
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using namespace std; |
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namespace Magnum { namespace SceneGraph { |
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template<class T> Camera2D<T>* Camera2D<T>::setProjection(const Math::Vector2<T>& size) { |
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/* Scale the volume down so it fits in (-1, 1) in all directions */ |
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AbstractCamera<2, T>::rawProjectionMatrix = Math::Matrix3<T>::scaling(2.0f/size); |
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AbstractCamera<2, 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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#ifndef Magnum_SceneGraph_Camera3D_h |
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#define Magnum_SceneGraph_Camera3D_h |
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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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|
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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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|
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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 Class Magnum::SceneGraph::Camera3D |
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*/ |
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#include "AbstractCamera.h" |
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#ifdef WIN32 /* I so HATE windows.h */ |
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#undef near |
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#undef far |
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#endif |
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namespace Magnum { namespace SceneGraph { |
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/**
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@brief Camera for three-dimensional scenes |
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See Drawable documentation for more information. |
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@section Camera3D-explicit-specializations Explicit template specializations |
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The following specialization are explicitly compiled into SceneGraph library. |
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For other specializations you have to use Camera3D.hpp implementation file to |
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avoid linker errors. See @ref compilation-speedup-hpp for more information. |
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- @ref Camera3D "Camera3D<GLfloat>" |
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@see Camera2D, Drawable, DrawableGroup |
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*/ |
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template<class T = GLfloat> class SCENEGRAPH_EXPORT Camera3D: public AbstractCamera<3, T> { |
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public: |
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/**
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* @brief Constructor |
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* @param object %Object holding this feature |
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* |
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* Sets orthographic projection to the default OpenGL cube (range @f$ [-1; 1] @f$ in all directions). |
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* @see setOrthographic(), setPerspective() |
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*/ |
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inline Camera3D(AbstractObject<3, T>* object): AbstractCamera<3, T>(object), _near(0.0f), _far(0.0f) {} |
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/**
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* @brief Set orthographic projection |
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* @param size Size of the view |
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* @param near Near clipping plane |
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* @param far Far clipping plane |
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* @return Pointer to self (for method chaining) |
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* |
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* The volume of given size will be scaled down to range @f$ [-1; 1] @f$ |
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* on all directions. |
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*/ |
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Camera3D<T>* setOrthographic(const Math::Vector2<T>& size, T near, T far); |
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/**
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* @brief Set perspective projection |
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* @param fov Field of view angle |
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* @param near Near clipping plane |
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* @param far Far clipping plane |
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* @return Pointer to self (for method chaining) |
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* |
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* @todo Aspect ratio |
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*/ |
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Camera3D<T>* setPerspective(T fov, T near, T far); |
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/** @brief Near clipping plane */ |
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inline T near() const { return _near; } |
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/** @brief Far clipping plane */ |
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inline T far() const { return _far; } |
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/* Overloads to remove WTF-factor from method chaining order */ |
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#ifndef DOXYGEN_GENERATING_OUTPUT |
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inline Camera3D<T>* setAspectRatioPolicy(AspectRatioPolicy policy) { |
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AbstractCamera<3, T>::setAspectRatioPolicy(policy); |
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return this; |
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} |
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#endif |
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private: |
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T _near, _far; |
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}; |
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}} |
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#endif |
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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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|
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This file is part of Magnum. |
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|
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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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|
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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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