EZGL

Easy GL provides some easy to use stuff for convenient OpenGL coding in Qt.

with glrenderer

u can do things like

"simpletriangle.hpp"

#ifndef SIMPLETRIANGLE_HPP
#define SIMPLETRIANGLE_HPP
#include "code/glrenderer.hpp"

class SimpleTriangle :
public GLProject {

    public:

	    SimpleTriangle( CStr const & p_name, ViewControlData *p_vcd = nullptr );

    public:

	    glm::mat4
	    m,v,p,
	    mv;

    public:

	    void
	    init( );

	    void
	    paint( );

	    void
	    resize( int p_width, int p_height );

};

void
print( glm::vec4 const & p_vec );

void
print( glm::mat4 const & p_mat );
#endif // SIMPLETRIANGLE_HPP

"simpletriangle.cpp"

#include "simpletriangle.hpp"

typedef glm::vec3 V3;
typedef glm::mat4 M4;

SimpleTriangle::SimpleTriangle( CStr const & p_name, ViewControlData *p_vcd ) :
GLProject ( p_name, p_vcd ) {

}

void
SimpleTriangle::init( ) {

    glClearColor( .0f, .0f, .0f, 1.f );

    m = glm::mat4( 1. );

    glr.vertices( "ST-VERTICES" ).
	    setUsage( GL_STATIC_DRAW ).
	    addAttrib( "vertex", 2, 0 ) <<
	    -1.f << -1.f <<
	    +1.f << -1.f <<
	    +0.f << +1.f <<
	    GLRenderer::VertexArray::Object( 0, 3, GL_TRIANGLES );

    glr.shader(
	    "ST-SHADER",
	    //Vertex Shader
	    "#version 330 core\n"
	    "layout( location = 0 ) in vec2 vertex;\n"
	    "void main( void ) {\n"
		    "gl_Position = vec4( vertex, 0., 1. );"
	    "}\n",

	    //Fragment Shader
	    "#version 330 core\n"
	    "out vec4 fColor;\n"
	    "void main( void ) {\n"
		    "fColor = vec4( .8, .7, .3, 1. );\n"
	    "}\n",
	    GLRenderer::ShaderCode::FROM_CODE );

    glr.program( "ST-PROGRAM" ).
	    setVertexArray( "ST-VERTICES" ).
	    setShader( "ST-SHADER" ).
	    build( );
    }

void
SimpleTriangle::paint( ) {

    glClear( GL_COLOR_BUFFER_BIT );

    glr.run( { "ST-PROGRAM" } );
}

void
SimpleTriangle::resize( int p_width, int p_height ) {

}