void ZBuffer::Init()
{
    for(int h = 0 ; h < depths.size ; h++) {
        for(int w = 0 ; w < depths.data[h].size ; w++) {
            depths.data[h].data[w] = std::numeric_limits<double>::infinity();
        }
    }
}

bool ZBuffer::ReplaceCurrent(const Coord2D p)
{
    if(!enabled) return true;

    if(p.depth > depths.data[p.y].data[p.x]) return false;

    depths.data[p.y].data[p.x] = p.depth;

    return true;
}

// Example Interpolation des points Scanline+Phong
        int interpolatedDepth1 = (p1.depth*wa + p2.depth*wb + p3.depth*wc);
        int interpolatedDepth2 = (p1.depth*wa + p2.depth*wb + p3.depth*wc);

        int interpolatedDepth = (interpolatedDepth1*wa + interpolatedDepth2*wb);
        SetPoint(Coord2D(x,y,interpolatedDepth), interpolatedColor);