Graphics API use the DirectX11 to implement, package some common interfaces like DeviceContext, SwapChain, VertexBuffer, PixelBuffer, IndexBuffer etc.
Use the RenderSystem class to organize all implements and provide an API like CreateXXX for dynamically generating related classes.
The main function of the Material class is to compile and apply VertxShader and PixelShader to the game, support multiple Texture resources, and support updating ConstantBuffer and setting CullMode.
The input system mainly uses the Keyboard and Mouse codes in DirectXTK, and the IInputListener interface is used to implement multi-window input. The IInputListener interface The function is as follows:
The math library is mainly composed of data structures commonly used in 3D mathematics, including the following structures:
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Matrix4x4 - 4x4 matrix (MVP matrix, inverse, get orientation, etc.)
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Vector2/Vector3/Vector4 - 2/3/4 dimensional vector (float)
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Point - screen coordinate point (int x, int y)
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MeshVertex - mesh vertices (position, texcoord, normal) for ConstantBuffer
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EulerAngle - Euler angle (contains 4x4 matrix for calculating rotation)
Resource mainly includes Mesh and Texture resources
The plugin used, contains the following sections:
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tinyobjloader - A lightweight open source obj file parser
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Dear ImGui - Bloat-free Graphical User interface for C++ with minimal dependencies
This project uses two external packages, namely DirectXTex and DirectXTK, where Tex is used for textures Loading, TK is used for Keyboard&Mouse input.
The runnable game contains the exe file and the Assets folder, where the Mesh, Shader and Texture resources are stored in the Assets.
The game implements a basic Earth-Moon system. Players can control the spacecraft to move in Earth orbit, lunar orbit and Earth-Moon transfer orbit. The orbit diagram is as follows:
The transfer orbit requires the spacecraft to fly to the earth-moon transfer point/moon-earth transfer point to change the orbit. When the player presses the space button, the spacecraft will automatically change the orbit when it can be transferred.
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F1 : open/close operation instructions
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F11: enable/disable full screen
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F: enable/disable fps camera movement
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V: turn on/off all camera rotation view
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ESC: on/off move and view
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Mouse movement: view
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Numpad 1: switch to first-person camera
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Numpad 1: toggles the third-person camera
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Scroll wheel: 3rd person camera distance adjustment
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w/a/s/d: forward/left/backward/right
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space: switch track
The game UI supports real-time adjustment of relevant game states. The approximate parameters are as follows:
This Demo implements a basic Earth-Moon scene, in which the Earth and Moon have rotation effects, skyboxes, spacecraft orbits, first-person and third-person cameras, and all objects in the scene have textures and lighting (parallel light) effects.
Earth Oribit
To the moon
Moon Orbit
Back to earth
