VBOs with std::vector

Question

I\'ve written a model loader in C++ an OpenGL. I\'ve used std::vectors to store my vertex data, but now I want to pass it to glBufferData(), howeve

Answer 1

This should do the trick:

&vertices[0]

Some prefer &vertices.front(), but that's more typing and I'm bone lazy.

To be even lazier, you could overload glBufferData thus:

template 
inline void glBufferData(GLenum target, const vector& v, GLenum usage) {
    glBufferData(target, v.size() * sizeof(T), &v[0], usage);
}

Then you can write:

glBufferData(GL_ARRAY_BUFFER, vertices, GL_STATIC_DRAW);

and also avoid bugs (your struct is bigger than 3 * sizeof(float)).