BasicGL

This is a simple framework which allows to create simple OpenGL apps without much code

Examples

Creates a simple triangle: triangle.cpp	Creates an arbitrary shape: heart.cpp
Uses the plotting capabilities: plot.cpp	Container element: snowman.cpp
Draw with mouse and keyboard: paint.cpp	OBJ files viewer: 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

// Includes the BasicGL library and the C++ standard math library (for M_PI)
#include <basicgl/Manager.hpp>
#include <cmath>

// 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;
}