Messages

1

Window / Re: Cannot draw 2D elements with modern OpenGL

« on: June 04, 2015, 11:05:34 pm »

Hi Nexus.

I think that this is a very minimal example that fits to my game structure and shows that 2D elements are not appearing in the screen. There are only three functions to draw a 3D triangle and a 2D shape, and one of them is just to compile shaders, so you can ignore it. Furthermore, as SpeCter said, I think that is not a good idea remove shaders using OpenGL 3.3.

And about resetGlStates(), it doesn't matter if you put or not this function; you will get the same result (in this case). I just put it in one of my tests.

Regards!

2

Window / Cannot draw 2D elements with modern OpenGL

« on: June 04, 2015, 09:50:46 pm »

Hi!

I'm trying to draw some 2D elements mixed with some 3D elements using OpenGL 3.3, but 2D elements never appears in the screen.

I prepared a full example to test this issue:
http://pastebin.com/BvJbK5K9

Some info:
- SFML: I tried it with version 2.1 and 2.3 with the same result.
- OS: Win7 64b (but game is compiled in x86).

Can anybody help me to make this works?

Thanks!!

3

Graphics / Re: sf::Texture and std::vector error

« on: January 12, 2013, 08:20:23 pm »

I see... then I'll move it to another container. Thank you Nexus!

PS: I've tryied to search it, but I don't found nothing (maybe I haven't know how to search it...), and I'll try to follow the rules better next time. 

4

Graphics / sf::Texture and std::vector error

« on: January 12, 2013, 07:51:54 pm »

Hi! I'm newbie in STL use and I'm doing some tests with a vector of my own class. The code:

class Animation{
        sf::Texture m_texture;
        sf::Sprite m_image;
        // Other stuff
       
public:
        // Constructors
        Animation(){}
        Animation (std::string file){
                m_texture.loadFromFile(file);
                m_image = sf::Sprite(m_texture);
                // ...
        }
        Animation (const Animation& anim){ // Copy constructor
                m_texture = sf::Texture(anim.m_texture);
                m_image = sf::Sprite(anim.m_image);
                // ...
        }
       
        // get the sprite to draw      
        sf::Sprite& getSprite(){
                return m_image;
        }
};
 

class Game{
        std::vector <Animation> m_player;
        // ...
       
public:
        Game(){}
       
        void run(sf::RenderWindow *m_window){
                loadLevel(); // Load players and so on...
               
                // Load players, method 2 (with this game works fine)
                /*Animation a("001.png"), b("002.png");
                m_player.push_back(a);
                m_player.push_back(b);*/
               
                while (m_window->isOpen()){
                        sf::Event event;
                        while(m_window->pollEvent(event)){
                                if(event.type == sf::Event::Closed || (event.type == sf::Event::KeyReleased && event.key.code == sf::Keyboard::Escape)){
                                        m_window->close();
                                }
                        }
                       
                        m_window->clear();
                        for (std::vector<Animation>::iterator i = m_player.begin(); i < m_player.end(); i++){ // Draw the animations
                                m_window->draw((*i).getSprite()); // Here I get the error
                        }
                        m_window->display();
                }
               
                unloadLevel();
        }
       
       
        void loadLevel(){
                Animation a("001.png");
                Animation b("002.png");
                m_player.push_back(a);
                m_player.push_back(b);
        }
       
       
        void unloadLevel(){
                m_player.clear();
        }
};

int main(int argc, char **argv){
        sf::RenderWindow window(sf::VideoMode(800, 600), "SFML window");
        Game game;
        game.run(&window);
       
        return 0;
}

The problem is that, when I use "loadLevel()" to load my animations, I get an error when I try to show them, or get an empty texture (the shape of the image filled in blank), but when I use the "method 2" instead of "loadLevel()" it works fine...

Any idea?

I'm using SFML 2.0 with CodeLite 5570 (Win7 x64).

Thank you.

PS: You can download the project from HERE

5

Graphics / [SOLVED] Sprite resize error

« on: November 02, 2011, 01:26:04 pm »

Thank you, TheCake.

I finally solved it using a temporal sprite and then copying it to my sprite variable.

 

6

Graphics / [SOLVED] Sprite resize error

« on: October 28, 2011, 02:30:38 pm »

I load an image with:

Code: [Select]

sf::Image img;
sf::Sprite sprite;

img.LoadFromFile("myimage.png"); // An image of 480x530 px
img.SetSmooth(0);

sprite.SetImage(img);
sprite.SetPosition(0, 0);
sprite.Resize(480, 530);

and when I show it with App.Draw (sprite); there's no problem. But then I change the image with:

Code: [Select]

img.LoadFromFile("biggerimage.png"); // An image of 500x500 px
sprite.SetImage(img);
sprite.Resize(480, 530);

then the image looks 500x500 size but cutted to 480x530, so it looks ugly.

How can I change an sprite image into a bigger image and resize it correctly?

7

Window / [SOLVED] App chash when minimize

« on: October 24, 2011, 04:22:20 pm »

Here it is ^^.

Just copy all to main.cpp and compile.

Code: [Select]

// INCLUDES
#include <SFML/Window.hpp>
#include <SFML/Graphics.hpp>
#include <SFML/Network.hpp>
#include <SFML/Audio.hpp>

#include <string.h>
#include <stdlib.h>
#include <stdio.h>

#include <ios>
#include <iostream>
#include <fstream>
#include <ctime>


typedef struct{
int panoramica; // 1 for panoramic, 0 for 4:3
int proporcional; // 1 to keep aspect ratio
}SYSTEM;


// GLOBALS
SYSTEM sys;
sf::RenderWindow App;


int main(){

App.Create(sf::VideoMode(1024, 768, 32), "Minimize error");
App.SetFramerateLimit(60);
App.SetPosition(0,0);
App.Clear(sf::Color::Black );

sys.panoramica = false;
sys.proporcional = true;



const sf::Input& Input = App.GetInput();

// Main Loop
int i = 0;
    while (App.IsOpened()){

        sf::Event Event;
        while (App.GetEvent(Event)){

            // Close app(ESC)
            if (Event.Type == sf::Event::Closed || (Event.Type == sf::Event::KeyPressed && Event.Key.Code == sf::Key::Escape) ){
sf::Sleep (0.5);
App.Close();
}

// Keep aspect ratio
if (Event.Type == sf::Event::Resized){
if (sys.panoramica ){
if (sys.proporcional && ( (App.GetHeight()*100 / App.GetWidth() != 56) && (App.GetHeight()*100 / App.GetWidth() != 60) ) ){
App.SetSize(App.GetWidth(), ( App.GetWidth() * 60 / 100) );
}
}else{
if (sys.proporcional && (App.GetHeight()*100 / App.GetWidth() != 75)){
App.SetSize(App.GetWidth(), ( App.GetWidth() * 75 / 100) );
}
}
}

}
       


        // Clean the screen
App.Clear(sf::Color::Black );
App.Display();
sf::Sleep (0.1);
    }

sf::Sleep(1);
fflush (stdin);
    return EXIT_SUCCESS;
}


EDIT: The problem was in App.GetWidth(), which at minimize window return 0, so there's a zero division. I solved it with:

Code: [Select]

// Keep aspect ratio
if (Event.Type == sf::Event::Resized){
if (App.GetHeight() > 10 && App.GetWidth() > 10){
if (sys.panoramica ){
    ...

Thank you, Laurent!

8

Window / [SOLVED] App chash when minimize

« on: October 24, 2011, 04:02:34 pm »

But it only crash when I minimize the window. When I resize it there's no problem.

Could I know when the minimize button is pushed? Some event or something like this.

9

Window / [SOLVED] App chash when minimize

« on: October 24, 2011, 12:38:21 pm »

Hi!

I have write a code to keep aspect ratio in my app, but when I minimize the window, my app crash.

The code is:

Code: [Select]

// sys.panoramica is 1 if resolution screen is panoramic
// sys.proporcional set if we will keep the aspect ratio

sf::Event Event;
while (App.GetEvent(Event)){

        // keep aspect
if (Event.Type == sf::Event::Resized){
if (sys.panoramica ){
if (sys.proporcional && ( (App.GetHeight()*100 / App.GetWidth() != 56) && (App.GetHeight()*100 / App.GetWidth() != 60) ) ){
App.SetSize(App.GetWidth(), ( App.GetWidth() * 60 / 100) );
}
}else{
if (sys.proporcional && (App.GetHeight()*100 / App.GetWidth() != 75)){
App.SetSize(App.GetWidth(), ( App.GetWidth() * 75 / 100) );
}
}
}
}

Some idea?  :?

I'm using Win7-32, CodeLitte and SFML 1.6

10

Window / That annoying little window

« on: August 09, 2011, 12:37:09 pm »

If you need the console window but you don't want to show it always, you can use this code to show/hide it:

Code: [Select]

#include <windows.h>

//----------------------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------------------
class ConsoleWindow{
//----------------------------------------------------------------------------------------------------
//----------------------------------------------------------------------------------------------------
private:
HWND CONSOLE;

public:
ConsoleWindow(void);
void HideConsoleWindow (void);
void ShowConsoleWindow (void);
};


//----------------------------------------------------------------------------------------------------
ConsoleWindow::ConsoleWindow (void){
//----------------------------------------------------------------------------------------------------
SetConsoleTitle("- Console Window -");
sf::Sleep(1);
this->CONSOLE = FindWindow(NULL, "- Console Window -");
}

//----------------------------------------------------------------------------------------------------
void ConsoleWindow::HideConsoleWindow (void){
//----------------------------------------------------------------------------------------------------
ShowWindow(this->CONSOLE, SW_HIDE);
}

//----------------------------------------------------------------------------------------------------
void ConsoleWindow::ShowConsoleWindow (void){
//----------------------------------------------------------------------------------------------------
ShowWindow(this->CONSOLE, SW_SHOW);
}


11

Window / [SOLVED] Window Size problem

« on: May 27, 2011, 02:52:30 pm »

I solved it checking if height is correct and then, adapting my resize system to the height-titlebar_size:

Code: [Select]

sys.width = 1280;
sys.height = 800;
sys.bpp = 32;
sys.titlebar = 0; // titlebar size

* * *

sf::Window proof;
proof.Create(sf::VideoMode(sys.width, sys.height, sys.bpp), "");
sys.titlebar = sys.height - proof.GetHeight();
proof.Close();

if (sys.titlebar != 0){
sys.height -= sys.titlebar;
}

* * *
App.Create(sf::VideoMode(sys.width, sys.height+sys.titlebar, sys.bpp), title);

Thanks for the help, Laurent!

12

Window / [SOLVED] Window Size problem

« on: May 27, 2011, 01:42:55 pm »

taskbar isn't the problem because when I start my program I can see it down the taskbar. I think the problem is titlebar. Do you know if it's size is always 22 pixels?

13

Window / [SOLVED] Window Size problem

« on: May 27, 2011, 03:08:23 am »

Hi! I have some problems with my window size. I mean, I do that:

Code: [Select]

// 1280x800x32 is my desktop configuration
sys.width = 1280;
sys.height = 800;
sys.bpp = 32;

*  *  *

sf::RenderWindow App;
char title[100] = "";
sprintf (title, "Storm Alarm %d.%d.%d", sys.version, sys.revision, sys.beta);
App.Create(sf::VideoMode(sys.width, sys.height, sys.bpp), title);
App.SetFramerateLimit(15);
App.SetIcon(39, 38,  Icon.GetPixelsPtr() );
App.SetPosition(0,0);
printf ("Width: %d  Height: %d\n", App.GetWidth(), App.GetHeight());

But in DOS console I get:

Code: [Select]

Width:1280  Height: 778

And my window background is incompleted, as the titlebar was eatting up the image, but if I try with 1280x720 or minor I have no problem.

There is a screenshot with the window maximized:
SCREENSHOT

I'm using SFML 1.6, Windows 7 and CodeLite with g++.

Some idea?

PS: Sorry about my English -.-U