https://github.com/fytex/graphicengine

Created in C++ (OpenGL) with spacial movement and a Solar System as an example. Contains both the engine and generator.
https://github.com/fytex/graphicengine

Last synced: 8 months ago
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Created in C++ (OpenGL) with spacial movement and a Solar System as an example. Contains both the engine and generator.

• Host: GitHub
• URL: https://github.com/fytex/graphicengine
• Owner: Fytex
• License: mit
• Created: 2022-06-10T11:41:12.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-06-12T21:01:30.000Z (over 3 years ago)
• Last Synced: 2025-01-11T07:47:51.840Z (9 months ago)
• Language: C
• Homepage:
• Size: 8.91 MB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# GraphicEngine

![Solar System](examples/solar_system_lines.png)

Graphic Engine and Model Generator made in C++ with spacial movement.

The engine uses OpenGl to render 3D models, i.e, models of points that describe triangles.

The generator creates some basic primitives:

- Plane

- Box

- Cone

- Sphere

- Bezier

- Torus

 ## Engine

 

 As refered before, the engine uses OpenGL to render a scene, it also applies transformations, textures, normals and lights. These are passed in a XML file passed by argument to the engine, that follows a syntax that can be found in the *xml_syntax* file.

 

 To run the executable you must provide the xml as an argument and have all the files (from generator) and textures (if using) in the respective folder.

 

 Functionalities:

 

- UP Key - Longitudinal positive movement

- DOWN Key - Longitudinal negative movement

- RIGHT Key - Latitudinal positive movement

- LEFT Key - Latitudinal negative movement

- CTRL+UP Keys - Camera's approximation

- CTRL+DOWN Keys - Camera's disapproximation

- W Key - Foward movement

- S Key - Backward movement

- D Key - Movement to the right

- A Key - Movement to the left

- Mouse - Camera's view

- Z Key - Change between different modes of drawing models (Fill, Lines,

Points)

- X Key - Show/Hide axis X, Y and Z and movement trajectories

- ESC Key - Free's user from application

 

 ## Generator

 

 The generator creates 2 files, one containing the points of the triangles and the respective normals, and the other file has the points for the textures.

 To create a different model with bezier it's recommended to read *README.md* in *bezier_info*'s folder. *Teapot*'s patch is already provided as an example.

 

 ### Plane

 `./generator plane size divisions outFile`

 Ex: `./generator plane 1 3 plane.3d`

 

 ### Box

 `./generator box size divisions outFile`

 

 Ex: `./generator box 1 3 box.3d`

 

 ### Cone

 `./generator cone radius height slices stacks outFile`

 

 Ex: `./generator cone 1 2 10 10 cone.3d`

 

 ### Sphere

 `./generator sphere radius slices stacks outFile`

 

 Ex: `./generator sphere 1 10 10 sphere.3d`

 

 ### Bezier

 `./generator bezier inFile level outFile`

 

 Ex: `./generator bezier teapot.patch 64 bezier.3d`

 

  ### Torus

 `./generator torus outterRadius innerRadius slices stacks outFile`

 

 Ex: `./generator torus 2.4 2.2 20 20 torus.3d`