void SQPrimitives::init(QGLShaderProgram *program)
{
_program = program;
initializeGLFunctions();
glGenBuffers(2, _vboIds);
initCubeGeometry();
}
void Visualizer::paintGL()
{
// Clear color and depth buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
texture->bind();
// Calculate model view transformation
QMatrix4x4 matrix;
matrix.translate(0.0, 0.0, -5.0);
matrix.rotate(rotation);
// Set modelview-projection matrix
program.setUniformValue("mvp_matrix", projection * matrix);
// Use texture unit 0 which contains cube.png
program.setUniformValue("texture", 0);
// Generate 2 VBOs
arrayBuf.create();
indexBuf.create();
// Initializes cube geometry and transfers it to VBOs
initCubeGeometry();
drawCubeGeometry(&program);
}
void GeometryEngine::init()
{
this->initializeOpenGLFunctions();
// Generate 2 VBOs
glGenBuffers(2, vboIds);
// Initializes cube geometry and transfers it to VBOs
initCubeGeometry();
}
void GeometryEngine::init()
{
//! [0]
// Generate 2 VBOs
glGenBuffers(2, vboIds);
//! [0]
// Initializes cube geometry and transfers it to VBOs
initCubeGeometry();
}
//! [0]
GeometryEngine::GeometryEngine()
: indexBuf(QOpenGLBuffer::IndexBuffer)
{
initializeOpenGLFunctions();
// Generate 2 VBOs
arrayBuf.create();
indexBuf.create();
// Initializes cube geometry and transfers it to VBOs
initCubeGeometry();
}
void GeometryEngine::init()
{
initCubeGeometry();
}