https://github.com/alexandersilvab/basicgl
This is a simple framework which allows to create simple OpenGL apps without much code
https://github.com/alexandersilvab/basicgl
cpp drawing glut opengl opengl-viewer plot
Last synced: 3 months ago
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This is a simple framework which allows to create simple OpenGL apps without much code
- Host: GitHub
- URL: https://github.com/alexandersilvab/basicgl
- Owner: AlexanderSilvaB
- License: mit
- Created: 2018-12-02T00:43:16.000Z (over 6 years ago)
- Default Branch: master
- Last Pushed: 2022-05-02T03:55:50.000Z (about 3 years ago)
- Last Synced: 2025-02-09T04:26:49.650Z (5 months ago)
- Topics: cpp, drawing, glut, opengl, opengl-viewer, plot
- Language: C++
- Size: 2.03 MB
- Stars: 2
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# BasicGL
[](https://travis-ci.com/AlexanderSilvaB/BasicGL)
This is a simple framework which allows to create simple OpenGL apps without much code
## Examples
| | |
|-|-|
| Creates a simple triangle: [triangle.cpp](src/examples/triangle.cpp) | Creates an arbitrary shape: [heart.cpp](src/examples/heart.cpp) |
|  |  |
| Uses the plotting capabilities: [plot.cpp](src/examples/plot.cpp) | Container element: [snowman.cpp](src/examples/snowman.cpp) |
|  |  |
| Draw with mouse and keyboard: [paint.cpp](src/examples/paint.cpp) | OBJ files viewer: [viewer.cpp](src/examples/viewer.cpp) |
|  |  |
## Features
* Windows
* Camera control
* Cartesian and OpenGL modes (Y inverted)
* Keyboard and Mouse support
* 2D and 3D modes
* Basic shapes (point, line, triangle, rectangle, circle, sphere, cone, cube, cylinder)
* Complex 2D shapes (polygon, sequence, loop, connected triangles, connected rectangles, radial triangles )
* Complex 3D shapes (polygon, teapot)
* Container elements
* Lighting
* Text support
* True Type fonts support
* Data plotting
* Automatic rainbow colors generation
* Animations
* Textures
* Webcam/video to texture
* Automatic texture maps generation
* OBJ files
* Rotate, translate and scale any element
* Screen image/video capture
## To-do
- [ ] Android and iOS support
- [ ] Better plot features
## Example code
This simple code creates a rotating teapot
```cpp
// Includes the BasicGL library and the C++ standard math library (for M_PI)
#include
#include
// Prevents from using BasicGL::
using namespace BasicGL;
/**
Rotates the teapot at 2 x PI radians per second
@param elements: The list of elements of the current window
@param window: A pointer to the current window
@param ellapsedTime: The amount of seconds since the last call to this funcion
*/
void rotate(ElementsList elements, WindowPtr window, float ellasedTime)
{
/*
Select the first element of the window.
As there's just one element (teapot), it will be the element of index = 0
The element can also be selected using the elements parameter (elements[0])
or the find function of the window (window->find("teapot"))
*/
ElementPtr teapot = window->get(0);
// Rotates the teapot element around the Y axis (speed x time)
teapot->rotate( 0, 2 * M_PI * ellasedTime, 0 );
}
// The begin of the program
int main(int argc, char *argv[])
{
// Initialize the BasicGL library
Manager::Init(argc, argv);
// Creates a new window in 3D mode named Teapot
Manager::CreateWindow("Teapot", MODE_3D);
// Sets the rotate function as the animation function for the window
Manager::SetAnimationFunction(rotate);
// Creates a new element of type TEAPOT and also named teapot
Manager::CreateElement(TEAPOT, "teapot");
// Shows the window
Manager::Show();
// Destroys all BasicGL resources
Manager::Destroy();
return 0;
}
```