Examples of GL

de.dermoba.srcp.devices.GL
javax.media.opengl.GL
The basic interface to OpenGL, providing access to core functionality up through the OpenGL 2.0 specification as well as all vendor extensions.

While the APIs for vendor extensions are unconditionally exposed, the underlying functions may not be present. The method {@link #isFunctionAvailable} should be used to query theavailability of any non-core function before it is used for the first time; for example, gl.isFunctionAvailable("glProgramStringARB"). On certain platforms (Windows in particular), the most "core" functionality is only OpenGL 1.1, so in theory any routines first exposed in OpenGL 1.2, 1.3, and 1.4, 1.5, or 2.0 as well as vendor extensions should all be queried. Calling an unavailable function will cause a {@link GLException} to be raised.
{@link #isExtensionAvailable} may also be used to determine whethera specific extension is available before calling the routines or using the functionality it exposes: for example, gl.isExtensionAvailable("GL_ARB_vertex_program");. However, in this case it is up to the end user to know which routines or functionality are associated with which OpenGL extensions. It may also be used to test for the availability of a particular version of OpenGL: for example, gl.isExtensionAvailable("GL_VERSION_1_5");.
Exceptions to the window system extension naming rules:
- The memory allocators for the NVidia vertex_array_range (VAR) extension, in particular wglAllocateMemoryNV / glXAllocateMemoryNV and associated routines. {@link #glAllocateMemoryNV} has been provided for window system-independentaccess to VAR. {@link #isFunctionAvailable} will translate an argumentof "glAllocateMemoryNV" or "glFreeMemoryNV" into the appropriate window system-specific name.
- WGL_ARB_pbuffer, WGL_ARB_pixel_format, and other platform-specific pbuffer functionality; the availability of pbuffers can be queried on Windows, X11 and Mac OS X platforms by querying {@link #isExtensionAvailable} with an argument of"GL_ARB_pbuffer" or "GL_ARB_pixel_format".
net.java.games.jogl.GL

Examples of javax.media.opengl.GL


    public void init(GLAutoDrawable drawable) {
        // Use debug pipeline
        // drawable.setGL(new DebugGL(drawable.getGL()));


        GL gl = drawable.getGL();
        System.err.println("INIT GL IS: " + gl.getClass().getName());


        // Enable VSync
        gl.setSwapInterval(1);


        // Setup the drawing area and shading mode
        gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
        gl.glShadeModel(GL.GL_SMOOTH); // try setting this to GL_FLAT and see what happens.
    }

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Examples of javax.media.opengl.GL

        gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
        gl.glShadeModel(GL.GL_SMOOTH); // try setting this to GL_FLAT and see what happens.
    }


    public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
        GL gl = drawable.getGL();
        GLU glu = new GLU();


        if (height <= 0) { // avoid a divide by zero error!
        
            height = 1;
        }
        final float h = (float) width / (float) height;
        gl.glViewport(0, 0, width, height);
        gl.glMatrixMode(GL.GL_PROJECTION);
        gl.glLoadIdentity();
        glu.gluPerspective(45.0f, h, 1.0, 20.0);
        gl.glMatrixMode(GL.GL_MODELVIEW);
        gl.glLoadIdentity();
    }

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Examples of javax.media.opengl.GL

        gl.glMatrixMode(GL.GL_MODELVIEW);
        gl.glLoadIdentity();
    }


    public void display(GLAutoDrawable drawable) {
        GL gl = drawable.getGL();


        // Clear the drawing area
        gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
        // Reset the current matrix to the "identity"
        gl.glLoadIdentity();


        // Move the "drawing cursor" around
        gl.glTranslatef(-1.5f, 0.0f, -6.0f);


        // Drawing Using Triangles
        gl.glBegin(GL.GL_TRIANGLES);
            gl.glColor3f(1.0f, 0.0f, 0.0f);    // Set the current drawing color to red
            gl.glVertex3f(0.0f, 1.0f, 0.0f);   // Top
            gl.glColor3f(0.0f, 1.0f, 0.0f);    // Set the current drawing color to green
            gl.glVertex3f(-1.0f, -1.0f, 0.0f); // Bottom Left
            gl.glColor3f(0.0f, 0.0f, 1.0f);    // Set the current drawing color to blue
            gl.glVertex3f(1.0f, -1.0f, 0.0f);  // Bottom Right
        // Finished Drawing The Triangle
        gl.glEnd();


        // Move the "drawing cursor" to another position
        gl.glTranslatef(3.0f, 0.0f, 0.0f);
        // Draw A Quad
        gl.glBegin(GL.GL_QUADS);
            gl.glColor3f(0.5f, 0.5f, 1.0f);    // Set the current drawing color to light blue
            gl.glVertex3f(-1.0f, 1.0f, 0.0f);  // Top Left
            gl.glVertex3f(1.0f, 1.0f, 0.0f);   // Top Right
            gl.glVertex3f(1.0f, -1.0f, 0.0f);  // Bottom Right
            gl.glVertex3f(-1.0f, -1.0f, 0.0f); // Bottom Left
        // Done Drawing The Quad
        gl.glEnd();


        // Flush all drawing operations to the graphics card
        gl.glFlush();
    }

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Examples of javax.media.opengl.GL

            int boundaryModeR,
            float boundaryRed,
            float boundaryGreen,
            float boundaryBlue,
            float boundaryAlpha) {
        GL gl = context(ctx).getGL();


        // set texture wrap parameter
        switch (boundaryModeS) {
            case Texture.WRAP:
                gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_S, GL.GL_REPEAT);
                break;
            case Texture.CLAMP:
                gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_S, GL2.GL_CLAMP);
                break;
            case Texture.CLAMP_TO_EDGE:
                gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_S,
                        GL.GL_CLAMP_TO_EDGE);
                break;
            case Texture.CLAMP_TO_BOUNDARY:
                gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_S,
                        GL2.GL_CLAMP_TO_BORDER);
                break;
        }


        switch (boundaryModeT) {
            case Texture.WRAP:
                gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_T, GL.GL_REPEAT);
                break;
            case Texture.CLAMP:
                gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_T, GL2.GL_CLAMP);
                break;
            case Texture.CLAMP_TO_EDGE:
                gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_T,
                        GL.GL_CLAMP_TO_EDGE);
                break;
            case Texture.CLAMP_TO_BOUNDARY:
                gl.glTexParameteri(target, GL.GL_TEXTURE_WRAP_T,
                        GL2.GL_CLAMP_TO_BORDER);
                break;
        }


        // applies to Texture3D only
        if (boundaryModeR != -1) {
            switch (boundaryModeR) {
                case Texture.WRAP:
                    gl.glTexParameteri(target,
                            GL2.GL_TEXTURE_WRAP_R, GL.GL_REPEAT);
                    break;


                case Texture.CLAMP:
                    gl.glTexParameteri(target,
                            GL2.GL_TEXTURE_WRAP_R, GL2.GL_CLAMP);
                    break;
                case Texture.CLAMP_TO_EDGE:
                    gl.glTexParameteri(target,
                            GL2.GL_TEXTURE_WRAP_R,
                            GL.GL_CLAMP_TO_EDGE);
                    break;
                case Texture.CLAMP_TO_BOUNDARY:
                    gl.glTexParameteri(target,
                            GL2.GL_TEXTURE_WRAP_R,
                            GL2.GL_CLAMP_TO_BORDER);
                    break;
            }
        }


        if (boundaryModeS == Texture.CLAMP ||
                boundaryModeT == Texture.CLAMP ||
                boundaryModeR == Texture.CLAMP) {
            // set texture border color
            float[] color = new float[4];
            color[0] = boundaryRed;
            color[1] = boundaryGreen;
            color[2] = boundaryBlue;
            color[3] = boundaryAlpha;
            gl.glTexParameterfv(target, GL2.GL_TEXTURE_BORDER_COLOR, color, 0);
        }
    }

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Examples of javax.media.opengl.GL

    // This is the native method for clearing the accumulation buffer.
    @Override
    void clearAccum(Context ctx) {
        if (VERBOSE) System.err.println("JoglPipeline.clearAccum()");


        GL gl = context(ctx).getGL();
        gl.glClear(GL2.GL_ACCUM_BUFFER_BIT);
    }

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Examples of javax.media.opengl.GL

    // native library can support.
    @Override
    int getNumCtxLights(Context ctx) {
        if (VERBOSE) System.err.println("JoglPipeline.getNumCtxLights()");


        GL gl = context(ctx).getGL();
        int[] res = new int[1];
        gl.glGetIntegerv(GL2.GL_MAX_LIGHTS, res, 0);
        return res[0];
    }

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Examples of javax.media.opengl.GL

    // Native method for decal 1st child setup
    @Override
    boolean decal1stChildSetup(Context ctx) {
        if (VERBOSE) System.err.println("JoglPipeline.decal1stChildSetup()");


        GL gl = context(ctx).getGL();
        gl.glEnable(GL.GL_STENCIL_TEST);
        gl.glClearStencil(0x0);
        gl.glClear(GL.GL_STENCIL_BUFFER_BIT);
        gl.glStencilFunc(GL.GL_ALWAYS, 0x1, 0x1);
        gl.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_REPLACE);
        if (gl.glIsEnabled(GL.GL_DEPTH_TEST))
            return true;
        else
            return false;
    }

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Examples of javax.media.opengl.GL

    // Native method for decal nth child setup
    @Override
    void decalNthChildSetup(Context ctx) {
        if (VERBOSE) System.err.println("JoglPipeline.decalNthChildSetup()");


        GL gl = context(ctx).getGL();
        gl.glDisable(GL.GL_DEPTH_TEST);
        gl.glStencilFunc(GL.GL_EQUAL, 0x1, 0x1);
        gl.glStencilOp(GL.GL_KEEP, GL.GL_KEEP, GL.GL_KEEP);
    }

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Examples of javax.media.opengl.GL

    // Native method for decal reset
    @Override
    void decalReset(Context ctx, boolean depthBufferEnable) {
        if (VERBOSE) System.err.println("JoglPipeline.decalReset()");


        GL gl = context(ctx).getGL();
        gl.glDisable(GL.GL_STENCIL_TEST);
        if (depthBufferEnable)
            gl.glEnable(GL.GL_DEPTH_TEST);
    }

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Examples of javax.media.opengl.GL

    // native method for setting blend func
    @Override
    void setBlendFunc(Context ctx, int srcBlendFunction, int dstBlendFunction) {
        if (VERBOSE) System.err.println("JoglPipeline.setBlendFunc()");


        GL gl = context(ctx).getGL();
        gl.glEnable(GL.GL_BLEND);
        gl.glBlendFunc(blendFunctionTable[srcBlendFunction],
                blendFunctionTable[dstBlendFunction]);
    }

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