Messages

1

Window / Moving mouse events = FPS drop. Bottleneck?

« on: April 08, 2010, 01:23:50 am »

hahaha I know

and once again, Thank you so much Laurent. SFML has been really great. Love it

2

Window / Moving mouse events = FPS drop. Bottleneck?

« on: April 07, 2010, 02:00:24 am »

hmmm ... confused ... :roll:

I stopped development for a while after my previous post. Then only recently I have decided to upgrade to SFML 1.6 (Thank you Laurent ). I tried running the same program again, and this time no problem.

So ... all is good.
Thx Meseira

3

Window / Moving mouse events = FPS drop. Bottleneck?

« on: April 04, 2010, 03:26:49 am »

Hi, firstly the code:

Code: [Select]

#include <iostream>
#include <sstream>
#include <SFML/Graphics.hpp>
using namespace std;

template <class T>
inline static string toString (const T& t) {
  std::stringstream ss;
  ss << t;
  return ss.str();
}

int main() {
  sf::RenderWindow App(sf::VideoMode(800, 600, 32), "SFML OpenGL");
  sf::Clock Clock;

  glClearColor(0.f, 0.f, 0.f, 0.f);
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  gluPerspective(90.f, 1.f, 1.f, 500.f);

  sf::Event Event;
  sf::String fpsDisplay;  
  fpsDisplay.SetFont(sf::Font::GetDefaultFont());
  fpsDisplay.Move(10,10);

  App.SetFramerateLimit(60);
  App.UseVerticalSync(true);

  while (App.IsOpened()) {
    fpsDisplay.SetText("FPS: " + toString(1/App.GetFrameTime()));
    //cout << (1/App.GetFrameTime()) << endl;

    while (App.GetEvent(Event)) {
      //Irrelevant. An empty event polling will still cause a drop
      if (Event.Type == sf::Event::Closed) {App.Close();}
    }
    App.SetActive();
    glClear(GL_COLOR_BUFFER_BIT);
    App.Draw(fpsDisplay);
    App.Display();
  }
  return EXIT_SUCCESS;
}

Now, if I move my mouse wildly around in the window (just moving the mouse, not pressing anything), the frame rate drops from 60 to ~35-45. Is there a way around this or to fix this?

I don't want my game slowing down cause the user accidentally moves the mouse across the screen lol

Setup: SFML 1.5, VS Studio 2008, C++, Windows 7 64Bit

Thank you very much