A change of OpenGL video settings might cause the screen image to go blank, since the hardware doesn't support the new settings.
Is it somehow possible to look into the VRAM pixels of the rendered image, and this way determine however the current video mode is supported or not?

- Ducky.

Hello again!

How is it possible to draw a simple line using the AWTGLRenderer and its buffer capabilities?

A feasible approach is to draw the line using the canvas' graphics, after signaled to lwjgl that the framebuffer content can be displayed. This approach flickers since the line is not drawn before displayed, so how can I use simple gl draw operations with buffered AWTGLRenderer?

Hello.

Again I'm sitting trying to figure out why the translation/rotation is acting the way it is. Does anyone have any good references.

I'm dragging an object in the scene, by turning mouse x,y coords into world x,z coords (y is constant). Its works fine (except the perspective distortion), but how to I keep translation according to the mouse when its parent is rotated?

newDraggingObject3DPosition.matMul(parent.getRotationMatrix().cloneMatrix());

Hello again!

I'm trying to turn my application into an applet. In the appletviewer software and  hardware render (AWTGLCanvas) works fine. Same for software render when applet is loaded within a browser. The problem arises when using the AWTGLCanvas render inside the browser. What I get is a rendered image every second time, else it's a "near white" color - which is not the background from the rendered image.

The render code only runs on user/event input, thus it has no active render thread. Now, the render problem does not show here, but only on applet repaint eg when another window is dragged on top of the browser or the browser window is dragged from outside the screen and towards the screen center.

My applet painting methods look like this (like i've read http://www.jpct.net/forum2/index.php/topic,202.0.html):

    public void paint(Graphics g) {
        super.paint(g);
        if (worldFrame!=null)
            worldFrame.paint(g);
    }

    public void update(Graphics g) {
        paint(g);
    }
Where the worldframe is a JPanel which is the canvas is added to. The painting is done like this:

        if (buffer.usesRenderer(IRenderer.RENDERER_OPENGL))
            if (cGLScene!=null) {
                buffer.displayGLOnly();
                cGLScene.repaint();
            }
Does anyone have any idea?

Hello again.

Selection works on polygons, so if a selectable object carries a (partial) transparent texture, it would also be selected when clicked on the invisible part. Is there some kind of solution for this?

Regards.

A billboard object3d should rotate around its center rather than its corner when transformed in the world. I'd guess setRotationPivot is the answer. Nomatter what I give this method the object is still rotation around its corner. Build is called before setting the pivot. What is wrong?

How is this done?

I want to use the opengl renderer, but if acquiring of the opengl render fails I should use the software renderer (see code).

If once used opengl, and then requiring to initialize the render again and fails, then the software renderer is not probably initialized. What do I miss? This reinitialization works fine on software renderer only.

try {
    // Set up open gl
    buffer = new FrameBuffer(width, height, glOversampling);
    buffer.disableRenderer(IRenderer.RENDERER_SOFTWARE);
    cGLScene = (AWTGLCanvas)buffer.enableGLCanvasRenderer();
} catch (Exception _) {
    // Use software-renderer
    buffer = new FrameBuffer(width, height, swOversampling);
    buffer.enableRenderer(IRenderer.RENDERER_SOFTWARE);
}

Hello again guys.

I need text to appear among the object3ds, and cant find the right way to go.

Can it be achieved by assigning the texture to an object3d, and make the object invisible by using alpha-values in the texture?

Please help.