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Messages - tntexplosivesltd

Pages: 1 2 [3] 4 5 ... 11
31
Window / OpenGL Vertex Buffer Objects in SFML
« on: February 20, 2011, 10:36:26 am »
Awesome, thanks!
Turns out I had GLEW installed already, just had to include it :wink:

32
Window / OpenGL Vertex Buffer Objects in SFML
« on: February 20, 2011, 10:28:04 am »
The problem isn't knowing how to use VBOs.
Well, when I use glGenBufferARB(), I get a "glGenBufferARB was not declared in this scope" error. Does SFML not include them when it includes OpenGL? What else do I need to link against/include?
I am only including SFML/Window.hpp and SFML/Graphics.hpp.

33
Window / OpenGL Vertex Buffer Objects in SFML
« on: February 20, 2011, 10:08:19 am »
Hi,
How can I use VBOs in SFML? What extra stuff do I need to include (if anything).

34
Network / Threads/Network related!
« on: February 14, 2011, 11:55:09 pm »
The easiest way to do this is to use the UserData parameter discussed in the thread tutorial. Note this is for SFML 1.6, for SFML 2.0 you can use functors (aka function objects)

35
SFML wiki / Translate wiki into English / French
« on: February 14, 2011, 11:45:10 pm »
If you want, I can go through the English translations and proof-read them.

36
Network / Using proxy servers through sf::SocketTCP and sf::Http
« on: February 14, 2011, 11:08:25 pm »
Um... you could probably write your own "proxifier"
Other than that, I don't think SFML has any built-in proxy stuff :(

37
Graphics / Smaller images from a larger image
« on: February 13, 2011, 10:36:37 am »
So how can I pass the letters to OpenGL individually?

38
Graphics / Smaller images from a larger image
« on: February 13, 2011, 10:14:52 am »
Hmm... this shows image --> C++ STL vector --> image.
Can I just do image --> image?

39
Graphics / Smaller images from a larger image
« on: February 13, 2011, 10:00:31 am »
I want to use the images to draw text in openGL. SetSubRect looks to be going the wrong way about it. Found a link myself anyway:
http://www.sfml-dev.org/forum/viewtopic.php?t=2790

40
Graphics / Smaller images from a larger image
« on: February 13, 2011, 09:40:10 am »
Hi.
I am wondering how to load an image of ASCII characters and create many smaller images (one for each letter) from that large image.
Thank you in advance,
tntexplosivesltd.

41
Window / Opening window code wont work
« on: February 09, 2011, 04:11:10 am »
Are you sure you followed the tutorial for setting up to the letter?

42
Window / Opening window code wont work
« on: February 09, 2011, 03:48:08 am »
Which version of SFML are you using?

43
Window / OpenGL Initialisation in Constructor
« on: February 04, 2011, 11:52:38 am »
Yeah, that makes sense. Thanks!

44
Window / OpenGL Initialisation in Constructor
« on: February 04, 2011, 11:01:47 am »
Okay here we go. It's a bit big.
rendering.hpp:
Code: [Select]

class Rendering
{

  private:
    const float HALFSIZE;

  public:
    Rendering() : HALFSIZE(8)
    {
      // OpenGL initialisation
      // Light stuff
      GLfloat mat_specular[] = { 0.5, 0.5, 0.5, 0.0 };
      GLfloat mat_shininess[] = { 100.0 };
      GLfloat light_position[] = {0.f, 100.f, 100.f, 0.f};


      //glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
      //glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
      glLightfv(GL_LIGHT0, GL_POSITION, light_position);
      glEnable(GL_LIGHTING);
      glEnable(GL_LIGHT0);

      glEnable(GL_DEPTH_TEST);
      //glShadeModel(GL_SMOOTH);
      //glClearDepth(1.f);
      glClearColor(0.f, 0.f, 0.3f, 0.f);
      glDepthMask(GL_TRUE);
      glDepthFunc(GL_LEQUAL);
    }

    void set_frustum(float width, float height, float z_far)
    {
      // switch to projection matrix
      glMatrixMode(GL_PROJECTION);
      glLoadIdentity();
      glFrustum(-1.f, 1.f, -(height / width), (height / width), 1.5f, z_far);
      glViewport(0.f, 0.f, width, height);
    }

    void adjust_viewport(float width, float height)
    {
      glViewport(0.f, 0.f, width, height);
    }
    void draw()
    {
      // change to model matrix
      glMatrixMode(GL_MODELVIEW);
      glLoadIdentity();

      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        glMatrixMode(GL_MODELVIEW);
        // draw blocks
        glBegin(GL_QUADS);
          glTexCoord2f(0.f, 0.f); glVertex3f(-HALFSIZE, -HALFSIZE, -HALFSIZE);
          glTexCoord2f(0.f, 1.f); glVertex3f(-HALFSIZE,  HALFSIZE, -HALFSIZE);
          glTexCoord2f(1.f, 1.f); glVertex3f( HALFSIZE,  HALFSIZE, -HALFSIZE);
          glTexCoord2f(1.f, 0.f); glVertex3f( HALFSIZE, -HALFSIZE, -HALFSIZE);

          glTexCoord2f(0.f, 0.f); glVertex3f(-HALFSIZE, -HALFSIZE, HALFSIZE);
          glTexCoord2f(0.f, 1.f); glVertex3f(-HALFSIZE,  HALFSIZE, HALFSIZE);
          glTexCoord2f(1.f, 1.f); glVertex3f( HALFSIZE,  HALFSIZE, HALFSIZE);
          glTexCoord2f(1.f, 0.f); glVertex3f( HALFSIZE, -HALFSIZE, HALFSIZE);

          glTexCoord2f(0.f, 0.f); glVertex3f(-HALFSIZE, -HALFSIZE, -HALFSIZE);
          glTexCoord2f(0.f, 1.f); glVertex3f(-HALFSIZE,  HALFSIZE, -HALFSIZE);
          glTexCoord2f(1.f, 1.f); glVertex3f(-HALFSIZE,  HALFSIZE,  HALFSIZE);
          glTexCoord2f(1.f, 0.f); glVertex3f(-HALFSIZE, -HALFSIZE,  HALFSIZE);

          glTexCoord2f(0.f, 0.f); glVertex3f(HALFSIZE, -HALFSIZE, -HALFSIZE);
          glTexCoord2f(0.f, 1.f); glVertex3f(HALFSIZE,  HALFSIZE, -HALFSIZE);
          glTexCoord2f(1.f, 1.f); glVertex3f(HALFSIZE,  HALFSIZE,  HALFSIZE);
          glTexCoord2f(1.f, 0.f); glVertex3f(HALFSIZE, -HALFSIZE,  HALFSIZE);

          glTexCoord2f(0.f, 0.f); glVertex3f(-HALFSIZE, -HALFSIZE,  HALFSIZE);
          glTexCoord2f(0.f, 1.f); glVertex3f(-HALFSIZE, -HALFSIZE, -HALFSIZE);
          glTexCoord2f(1.f, 1.f); glVertex3f( HALFSIZE, -HALFSIZE, -HALFSIZE);
          glTexCoord2f(1.f, 0.f); glVertex3f( HALFSIZE, -HALFSIZE,  HALFSIZE);

          glTexCoord2f(0.f, 0.f); glVertex3f(-HALFSIZE, HALFSIZE,  HALFSIZE);
          glTexCoord2f(0.f, 1.f); glVertex3f(-HALFSIZE, HALFSIZE, -HALFSIZE);
          glTexCoord2f(1.f, 1.f); glVertex3f( HALFSIZE, HALFSIZE, -HALFSIZE);
          glTexCoord2f(1.f, 0.f); glVertex3f( HALFSIZE, HALFSIZE,  HALFSIZE);
        glEnd();
        glFlush();
      }
};


And interfacing.hpp - the "main loop"
Code: [Select]

class Interface
{
  private:
    // SFML variables
    sf::Event Event;
    sf::RenderWindow App;
    sf::VideoMode best_mode;

    Rendering main_rendering;

    // constants
    const float PI;

    // window size variables
    float best_width;
    float best_height;
    float centre_x;
    float centre_y;

  public:

    Interface() :best_mode(sf::VideoMode::GetMode(0)), main_rendering(),
    {

      sf::WindowSettings Settings;
      Settings.DepthBits         = 24;
      Settings.StencilBits       = 8;
      Settings.AntialiasingLevel = 0;

      best_width = best_mode.Width;
      best_height = best_mode.Height;
      centre_x = best_width / 2;
      centre_y = best_height / 2;

      App.Create(sf::VideoMode(best_width, best_height, 32), "sake interfacing test", sf::Style::Fullscreen, Settings);

      App.ShowMouseCursor(false);

      // performance tweaks
      //App.SetFramerateLimit(200);
      //App.UseVerticalSync(true);
      //App.PreserveOpenGLStates(true);

      main_rendering.set_frustum(best_width, best_height, 10000);
    }

    void start()
    {
      while (App.IsOpened())
      {

        while (App.GetEvent(Event))
        {
          // Close window - exit
          if (Event.Type == sf::Event::Closed)
          {
            App.Close();
          }

          // Resize event - adjust viewport
          if (Event.Type == sf::Event::Resized)
          {
            //main_rendering.adjust_viewport(Event.Size.Width, Event.Size.Height);
          }

          // Escape key - exit
          if ((Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::Escape))
          {
            App.Close();
          }

          // F5 key -  save a screenshot with timestamp in working directory
          if ((Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::F5))
          {
            char time_and_date[32];
            time_t time_ref = time(0);
            tm * screenshot_time;

            screenshot_time = localtime(&time_ref);
            strftime(time_and_date, 32, "%Y-%m-%d-%H%M%S.jpg", screenshot_time);
            sf::Image Screen = App.Capture();
            Screen.SaveToFile(time_and_date);
          }

        // Set the active window before using OpenGL commands
        // It's useless here because active window is always the same,
        // but don't forget it if you use multiple windows or controls
        App.SetActive();
        main_rendering.draw();
        App.Display();
      }
    }
};


And main.cpp:
Code: [Select]

#include "interface.hpp"
#include "rendering.hpp"

int main()
{
  Interface my_interface;
  my_interface.start();
}

I got rid of as much as I could, but some odd stuff might be there  :?

45
Window / OpenGL Initialisation in Constructor
« on: February 04, 2011, 08:33:19 am »
At the moment I have a rendering class with a constructor, and a draw() method. The OpenGL initialisation is in the constructor, and the draw() method draws a cube. My main game loop creates a rendering constructor outside the loop, then inside the loop it calls draw() each frame. the problem is that all OpenGL initialisation is forgotten about when the game loop calls the draw() method. Using PreserveOpenGLStates doesn't work.

By the way, I am using SFML 1.6 :wink:

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