Messages

1

Graphics / Re: using VertexArray, am i rigth?? (SOLVED)

« on: June 19, 2015, 02:48:15 am »

very thnaks, i thought it was the same but i wasn't sure 

2

Graphics / using VertexArray, am i rigth?? (SOLVED)

« on: June 18, 2015, 10:45:32 pm »

Hi guys, i was reading the tutorials from SFML page, in the tutorial "Designing your own entities with vertex array" they explain that performance depend from number of calls of "draw" function. I created a class to draw batches of entities with different texture, this class inherit from "sf::Drawable" class and, in her method "virtual void draw (RenderTarget &target, RenderStates states) const;" i wrote the next code:

void Menu::draw (RenderTarget &target, RenderStates states) const
{
    for (i = 0; i < quantityVertex; i++)
    {
        states.texture = &textures [i];
        target.draw (vertexArray [i[, states);
    }
}

this also can be done with the next code inside main game loop

for (i = 0; i < quantitySprites; i++)
   window.draw (sprites [i]);
 

ok, my question is, which is more efficient?? 

thank so much for your answers  , i don't know english 

Conclusion:
   The performance of the function "draw" is given from the number of calls of the function "RenderTarget::draw (const Drawable &drawable, const RenderStates &states), that if someone serves you