Render Offscreen without showing display

[nuvolanotturna]

Hi,
I'm trying to render a 3d scene offscreen on an image. It works but (only in the case I use a hardware render) it opens a window, just for a few seconds. Is it possible to avoid the display to be shown?

Here is my code:

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        buffer = new FrameBuffer(800, 600, FrameBuffer.SAMPLINGMODE_GL_AA_4X);
        buffer.disableRenderer(IRenderer.RENDERER_SOFTWARE);
        buffer.enableRenderer(IRenderer.RENDERER_OPENGL);

        buffer.clear(java.awt.Color.LIGHT_GRAY);
        world.renderScene(buffer);
        world.draw(buffer);
       
        String name = "/test" + Math.random() + ".png";
        System.out.println(name);
        ImageIO.write((BufferedImage) buffer.getOutputBuffer(), "png", new File(name));

        buffer.disableRenderer(IRenderer.RENDERER_OPENGL);
        buffer.dispose();


If I use the software render it does not open any window, while if I use the hardware render it opens a window and then just closes it (without showing anything). Is there some kind of configuration I can set to avoid any window to show?

Thanks for any help

Eve

[EgonOlsen]

I guess not. The window has the GL context. No window, no context.

[nuvolanotturna]

ok..thanks