Hi!
I’ve decided to give this GUI-lib a try, and my initial impression is good!
I am having an issue though, and maybe someone here can explain why (I am looking at you @t0neg0d =P).
The code I’m using is copied straight from the forum documentation topic.
The first window that appears is fine, and after the framerate stabilizes I get ~1700 fps. After clicking the button and making another window appear then the framerate drops to about ~170 fps and stays there. Adding more windows after the initial drop is cheap though.
1 window, ~1700 fps
2 windows, ~170 fps
36 windows, ~120 fps
Why that big initial fps drop?
[java]
package mygame;
import com.jme3.app.SimpleApplication;
import com.jme3.input.event.MouseButtonEvent;
import com.jme3.math.Vector2f;
import com.jme3.system.AppSettings;
import tonegod.gui.controls.buttons.ButtonAdapter;
import tonegod.gui.controls.windows.Window;
import tonegod.gui.core.Screen;
/**
- test
-
@author kwando
*/
public class Main extends SimpleApplication {
public static void main(String[] args) {
Main app = new Main();
AppSettings settings = new AppSettings(true);
settings.setResolution(1280, 720);
app.setSettings(settings);
app.setShowSettings(false);
app.start();
}
public int winCount = 0;
private Screen screen;
@Override
public void simpleInitApp() {
flyCam.setDragToRotate(true);
inputManager.setCursorVisible(true);
screen = new Screen(this, "tonegod/gui/style/def/style_map.xml");
screen.initialize();
guiNode.addControl(screen);
// Add window
Window win = new Window(screen, "win", new Vector2f(15, 15));
// create button and add to window
ButtonAdapter makeWindow = new ButtonAdapter(screen, "Btn1", new Vector2f(15, 55)) {
@Override
public void onButtonMouseLeftUp(MouseButtonEvent evt, boolean toggled) {
createNewWindow("New Window " + winCount);
}
};
// Add it to out initial window
win.addChild(makeWindow);
// Add window to the screen
screen.addElement(win);
//*/
}
public final void createNewWindow(String someWindowTitle) {
Window nWin = new Window(screen, “Window” + winCount, new Vector2f((screen.getWidth() / 2) - 175, (screen.getHeight() / 2) - 100));
nWin.setWindowTitle(someWindowTitle);
screen.addElement(nWin);
winCount++;
}
}
[/java]
One frame less at 100fps is like 10 frames less at 1000 fps. Also generally the “wait times” might be due to different things, e.g. copying the material info to the GPU for the first time takes much longer than any other computation. After that the material has been copied any added windows don’t add that overhead anymore.
