Java Community | Help. Code. Learn.•10mo ago

Connect LWJGL to JComponent?

The title pretty much says it all. I want LWJGL to draw to a component in my JFrame, instead of a GLFW window. What's the most efficient way I can make this work, if it is possible? Thank you in advance.

4 Replies

JavaBot•10mo ago

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john•10mo ago

Code: import com.jogamp.opengl.*; import com.jogamp.opengl.GLCapabilities; import com.jogamp.opengl.awt.GLJPanel; import javax.swing.JFrame;

public class JOGLExample implements GLEventListener {
    public static void main(String[] args) {
        final GLProfile profile = GLProfile.get(GLProfile.GL2);
        GLCapabilities capabilities = new GLCapabilities(profile);

        final GLJPanel glpanel = new GLJPanel(capabilities);
        JOGLExample triangle = new JOGLExample();
        glpanel.addGLEventListener(triangle);
        glpanel.setSize(400, 400);

        final JFrame frame = new JFrame("Colored Triangle");

        frame.getContentPane().add(glpanel);
        frame.setSize(frame.getContentPane().getPreferredSize());
        frame.setVisible(true);
        frame.setSize(1280, 800);
    }

    @Override
    public void init(GLAutoDrawable glad) {
    }

    @Override
    public void dispose(GLAutoDrawable glad) {
    }

    @Override
    public void display(GLAutoDrawable glad) {
        final GL2 gl = glad.getGL().getGL2();
        gl.glBegin(GL2.GL_POLYGON);

        gl.glColor3f(1.0f, 0.0f, 0.0f);   // Red
        gl.glVertex3f(0.5f, 0.7f, 0.0f);    // Top
        gl.glColor3f(0.0f, 1.0f, 0.0f);     // green
        gl.glVertex3f(-0.2f, -0.50f, 0.0f); // Bottom Left
        gl.glColor3f(0.0f, 0.0f, 1.0f);     // blue
        gl.glVertex3f(0.5f, -0.5f, 0.0f);   // Bottom Right

        gl.glEnd();
    }

    @Override
    public void reshape(GLAutoDrawable glad, int i, int i1, int i2, int i3) {
    }
}

public class JOGLExample implements GLEventListener {
    public static void main(String[] args) {
        final GLProfile profile = GLProfile.get(GLProfile.GL2);
        GLCapabilities capabilities = new GLCapabilities(profile);

        final GLJPanel glpanel = new GLJPanel(capabilities);
        JOGLExample triangle = new JOGLExample();
        glpanel.addGLEventListener(triangle);
        glpanel.setSize(400, 400);

        final JFrame frame = new JFrame("Colored Triangle");

        frame.getContentPane().add(glpanel);
        frame.setSize(frame.getContentPane().getPreferredSize());
        frame.setVisible(true);
        frame.setSize(1280, 800);
    }

    @Override
    public void init(GLAutoDrawable glad) {
    }

    @Override
    public void dispose(GLAutoDrawable glad) {
    }

    @Override
    public void display(GLAutoDrawable glad) {
        final GL2 gl = glad.getGL().getGL2();
        gl.glBegin(GL2.GL_POLYGON);

        gl.glColor3f(1.0f, 0.0f, 0.0f);   // Red
        gl.glVertex3f(0.5f, 0.7f, 0.0f);    // Top
        gl.glColor3f(0.0f, 1.0f, 0.0f);     // green
        gl.glVertex3f(-0.2f, -0.50f, 0.0f); // Bottom Left
        gl.glColor3f(0.0f, 0.0f, 1.0f);     // blue
        gl.glVertex3f(0.5f, -0.5f, 0.0f);   // Bottom Right

        gl.glEnd();
    }

    @Override
    public void reshape(GLAutoDrawable glad, int i, int i1, int i2, int i3) {
    }
}

Gradle Imports: implementation 'org.jogamp.jogl:jogl-all-main:2.3.2' implementation 'org.jogamp.gluegen:gluegen-rt-main:2.3.2' It uses JOGL instead of LWJGL, but all I needed was to draw polygons, so whatever.

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The TyphothanianOP•10mo ago

ugh. auto format. well, it is good enough

JavaBot•10mo ago

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This post has been closed by <@801145088830210129>.

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Connect LWJGL to JComponent?