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Tutorial 4
Tutorial 4
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‎Tutorial4_Shaders/Assets/Shaders/BasicShader.frag‎

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/*MIT License
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C++ OpenGL 3D Game Tutorial Series (https://github.com/PardCode/OpenGL-3D-Game-Tutorial-Series)
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Copyright (c) 2021-2022, PardCode
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.*/
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#version 410 core
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layout(location = 0) in vec3 inColor;
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layout(location = 0) out vec4 outColor;
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void main()
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{
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outColor = vec4(1,1,1,1);
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outColor.rgb = inColor;
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}

‎Tutorial4_Shaders/Assets/Shaders/BasicShader.vert‎

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/*MIT License
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C++ OpenGL 3D Game Tutorial Series (https://github.com/PardCode/OpenGL-3D-Game-Tutorial-Series)
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Copyright (c) 2021-2022, PardCode
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.*/
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#version 410 core
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layout(location = 0) in vec3 position;
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layout(location = 1) in vec3 color;
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layout(location = 0) out vec3 outColor;
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void main()
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{
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gl_Position.xyz = position;
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//if (gl_Position.y>0 && gl_Position.y<1)
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// gl_Position.x += 0.5;
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gl_Position.w = 1.0;
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outColor = color;
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}

‎Tutorial4_Shaders/Game/main.cpp‎

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/*MIT License
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C++ OpenGL 3D Game Tutorial Series (https://github.com/PardCode/OpenGL-3D-Game-Tutorial-Series)
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Copyright (c) 2021-2022, PardCode
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.*/
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#include <OGL3D/Game/OGame.h>
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#include <iostream>
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int main()
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{
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try
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{
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OGame game;
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game.run();
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}
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catch (const std::exception& e)
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{
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std::wclog << e.what() << std::endl;
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return -1;
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}
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return 0;
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}

‎Tutorial4_Shaders/OGL3D/include/OGL3D/Game/OGame.h‎

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/*MIT License
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C++ OpenGL 3D Game Tutorial Series (https://github.com/PardCode/OpenGL-3D-Game-Tutorial-Series)
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Copyright (c) 2021-2022, PardCode
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
9+
in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11+
copies of the Software, and to permit persons to whom the Software is
12+
furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
15+
copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.*/
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#pragma once
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#include <memory>
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#include <OGL3D/Graphics/OGraphicsEngine.h>
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class OWindow;
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class OGame
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{
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public:
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OGame();
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~OGame();
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virtual void onCreate();
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virtual void onUpdate();
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virtual void onQuit();
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void run();
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void quit();
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protected:
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bool m_isRunning = true;
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//pay attention to the order of smart pointers
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//the first one defined (m_graphicsEngine) is the last to be deallocated
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//the last one defined (m_triangleVAO) is the first to be deallocated
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std::unique_ptr<OGraphicsEngine> m_graphicsEngine;
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std::unique_ptr<OWindow> m_display;
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OVertexArrayObjectPtr m_triangleVAO;
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OShaderProgramPtr m_shader;
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};
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‎Tutorial4_Shaders/OGL3D/include/OGL3D/Graphics/OGraphicsEngine.h‎

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/*MIT License
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C++ OpenGL 3D Game Tutorial Series (https://github.com/PardCode/OpenGL-3D-Game-Tutorial-Series)
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Copyright (c) 2021-2022, PardCode
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
9+
in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11+
copies of the Software, and to permit persons to whom the Software is
12+
furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.*/
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#pragma once
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#include <OGL3D/OPrerequisites.h>
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#include <OGL3D/Math/OVec4.h>
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#include <OGL3D/Math/ORect.h>
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class OGraphicsEngine
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{
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public:
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OGraphicsEngine();
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~OGraphicsEngine();
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public:
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OVertexArrayObjectPtr createVertexArrayObject(const OVertexBufferDesc& data);
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OShaderProgramPtr createShaderProgram(const OShaderProgramDesc& desc);
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public:
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void clear(const OVec4& color);
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void setViewport(const ORect& size);
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void setVertexArrayObject(const OVertexArrayObjectPtr& vao);
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void setShaderProgram(const OShaderProgramPtr& program);
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void drawTriangles(ui32 vertexCount, ui32 offset);
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};
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‎Tutorial4_Shaders/OGL3D/include/OGL3D/Graphics/OShaderProgram.h‎

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/*MIT License
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C++ OpenGL 3D Game Tutorial Series (https://github.com/PardCode/OpenGL-3D-Game-Tutorial-Series)
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Copyright (c) 2021-2022, PardCode
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
9+
in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
12+
furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.*/
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#pragma once
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#include <OGL3D/OPrerequisites.h>
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class OShaderProgram
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{
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public:
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OShaderProgram(const OShaderProgramDesc& desc);
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~OShaderProgram();
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ui32 getId();
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private:
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void attach(const wchar_t* shaderFilePath, const OShaderType& type);
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void link();
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private:
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ui32 m_programId = 0;
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ui32 m_attachedShaders[2] = {};
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};
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‎Tutorial4_Shaders/OGL3D/include/OGL3D/Graphics/OVertexArrayObject.h‎

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/*MIT License
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C++ OpenGL 3D Game Tutorial Series (https://github.com/PardCode/OpenGL-3D-Game-Tutorial-Series)
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Copyright (c) 2021-2022, PardCode
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
9+
in the Software without restriction, including without limitation the rights
10+
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11+
copies of the Software, and to permit persons to whom the Software is
12+
furnished to do so, subject to the following conditions:
13+
14+
The above copyright notice and this permission notice shall be included in all
15+
copies or substantial portions of the Software.
16+
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18+
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19+
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20+
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21+
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.*/
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#pragma once
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#include <OGL3D/OPrerequisites.h>
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class OVertexArrayObject
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{
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public:
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OVertexArrayObject(const OVertexBufferDesc& data);
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~OVertexArrayObject();
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ui32 getId();
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ui32 getVertexBufferSize();
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ui32 getVertexSize();
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private:
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ui32 m_vertexBufferId = 0;
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ui32 m_vertexArrayObjectId = 0;
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OVertexBufferDesc m_vertexBufferData;
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};
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‎Tutorial4_Shaders/OGL3D/include/OGL3D/Math/ORect.h‎

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/*MIT License
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C++ OpenGL 3D Game Tutorial Series (https://github.com/PardCode/OpenGL-3D-Game-Tutorial-Series)
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Copyright (c) 2021-2022, PardCode
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Permission is hereby granted, free of charge, to any person obtaining a copy
8+
of this software and associated documentation files (the "Software"), to deal
9+
in the Software without restriction, including without limitation the rights
10+
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11+
copies of the Software, and to permit persons to whom the Software is
12+
furnished to do so, subject to the following conditions:
13+
14+
The above copyright notice and this permission notice shall be included in all
15+
copies or substantial portions of the Software.
16+
17+
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18+
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19+
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20+
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21+
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.*/
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#pragma once
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#include <OGL3D/OPrerequisites.h>
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class ORect
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{
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public:
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ORect(){}
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ORect(i32 width, i32 height):width(width),height(height) {}
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ORect(i32 left, i32 top, i32 width, i32 height) :left(left),top(top),width(width), height(height) {}
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ORect(const ORect& rect) :left(rect.left), top(rect.top), width(rect.width), height(rect.height) {}
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public:
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i32 width = 0, height = 0, left = 0, top = 0;
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};

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