Java GL2.glDisableClientState方法代碼示例

import javax.media.opengl.GL2; //導入方法依賴的package包/類
private void drawInteriorVertexColorVBO(final DrawContext dc, final int[] vboIds, final PathData pathData) {

		final GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.

		final int vertexStride = pathData.getVertexStride();

		// Convert stride from number of elements to number of bytes.
		gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, vboIds[0]);
		{
			gl.glEnableClientState(GL2.GL_COLOR_ARRAY);
			{
				gl.glVertexPointer(3, GL2.GL_FLOAT, 4 * vertexStride, 0);
				gl.glColorPointer(4, GL2.GL_FLOAT, 4 * vertexStride, 4 * pathData.getColorOffset());

				gl.glDrawArrays(GL2.GL_TRIANGLE_STRIP, 0, pathData.getVertexCount());
			}
			gl.glDisableClientState(GL2.GL_COLOR_ARRAY);
		}
		gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, 0);
	}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
public void paintNormals(GL2 gl) {
    info.c.assignGl(gl);
    Faces faces = info.getModel().getFaces();
    
    List<Vector3f> mesh = info.getModel().getVerts();
    List<Vector3f> normals = info.getModel().getNormals();

    List<Float> distanceCopy = new ArrayList<>(info.getDistance().size());

    for (Float f : info.getDistance()) {
        if (!info.isUseRelative()) {
            distanceCopy.add(Math.abs(f));
        } else {
            distanceCopy.add(f);
        }
    }

    float[] color = new float[3];
    color[0] = 0.8667f;
    color[1] = 0.7176f;
    color[2] = 0.6275f;

    gl.glPushAttrib(GL_ALL_ATTRIB_BITS);

    Vector3f normal;

    gl.glDisable(GL2.GL_TEXTURE_2D);
    gl.glEnable(GL2.GL_LIGHTING);
    
    for (int i = 0; i < faces.getNumFaces(); i++) {

        int[] facesInd = faces.getFaceVertIdxs(i);
        int[] faceNormIndex = faces.getFaceNormalIdxs(i);

        gl.glBegin(GL.GL_TRIANGLES);
        for (int f = 0; f < facesInd.length; f++) {
            if (faceNormIndex[f] != 0) {  // if there are normals, render them
                normal = normals.get(faceNormIndex[f] - 1);
                gl.glNormal3d(normal.getX(), normal.getY(), normal.getZ());
            }

            float[] ambient = {0.1f, 0.1f, 0.1f, 0.0f};
            gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_AMBIENT, ambient, 0);
            gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_DIFFUSE, color, 0);
            gl.glMaterialf(GL2.GL_FRONT_AND_BACK, GL2.GL_SHININESS, 10);

            float[] colorKs = {0, 0, 0, 1.0f};
            gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_SPECULAR, colorKs, 0);
            gl.glVertex3f(mesh.get(facesInd[f] - 1).getX(), mesh.get(facesInd[f] - 1).getY(), mesh.get(facesInd[f] - 1).getZ());
        }
        gl.glEnd();
    }

    if (info.getRecompute()) {
        recomputeNormals(gl, info, distanceCopy);
        info.setRecompute(false);
    }
    gl.glEnableClientState(gl.GL_VERTEX_ARRAY);
        info.c.draw();
    gl.glDisableClientState(gl.GL_VERTEX_ARRAY);
 
    gl.glPopAttrib();
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
@Override
public void init(GLAutoDrawable drawable) {

    if(clContext == null) {

        // find gl compatible device
        CLDevice[] devices = CLPlatform.getDefault().listCLDevices();
        CLDevice device = null;
        for (CLDevice d : devices) {
            if(d.isGLMemorySharingSupported()) {
                device = d;
                break;
            }
        }
        if(null==device) {
            throw new RuntimeException("couldn't find any CL/GL memory sharing devices ..");
        }
        // create OpenCL context before creating any OpenGL objects
        // you want to share with OpenCL (AMD driver requirement)
        clContext = CLGLContext.create(drawable.getContext(), device);

        // enable GL error checking using the composable pipeline
        drawable.setGL(new DebugGL2(drawable.getGL().getGL2()));

        // OpenGL initialization
        GL2 gl = drawable.getGL().getGL2();

        gl.setSwapInterval(1);

        gl.glPolygonMode(GL2.GL_FRONT_AND_BACK, GL2.GL_LINE);

        gl.glGenBuffers(glObjects.length, glObjects, 0);

//        gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, glObjects[INDICES]);
//        gl.glBufferData(GL2.GL_ELEMENT_ARRAY_BUFFER, ib.capacity() * SIZEOF_INT, ib, GL2.GL_STATIC_DRAW);
//        gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, 0);

        final int bsz = MESH_SIZE * MESH_SIZE * 4 * SIZEOF_FLOAT;
        gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
            gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, glObjects[VERTICES]);
            gl.glBufferData(GL2.GL_ARRAY_BUFFER, bsz, null, GL2.GL_DYNAMIC_DRAW);
            gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, 0);
        gl.glDisableClientState(GL2.GL_VERTEX_ARRAY);                       

        pushPerspectiveView(gl);
        gl.glFinish();

        // init OpenCL
        initCL(gl, bsz);

        // start rendering thread
        Animator animator = new Animator(drawable);
        animator.start();

    }
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 * Draws points at this path's specified positions.
 * <p/>
 * Note: when the draw context is in picking mode, this binds the current GL_ARRAY_BUFFER to 0
 * after using the currently bound GL_ARRAY_BUFFER to specify the vertex pointer. This does not
 * restore GL_ARRAY_BUFFER to the its previous state. If the caller intends to use that buffer
 * after this method returns, the caller must bind the buffer again.
 * 
 * @param dc
 *            the current draw context.
 * @param vboIds
 *            the ids of this shapes buffers.
 * @param pathData
 *            the current globe-specific path data.
 */
@Override
protected void drawPointsVBO(final DrawContext dc, final int[] vboIds, final PathData pathData) {

	final TourTrackConfig config = TourTrackConfigManager.getActiveConfig();

	if (config.isShowTrackPosition == false) {
		return;
	}

	final double d = getDistanceMetric(dc, pathData);
	if (d > getShowPositionsThreshold()) {
		return;
	}

	final IntBuffer posPoints = pathData.getPositionPoints();
	if (posPoints == null || posPoints.limit() < 1) {
		return;
	}

	final boolean useVertexColors = pathData.getTessellatedColors() != null && isShowTrackValueColor_Outline();

	final GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.

	// Convert stride from number of elements to number of bytes.
	gl.glVertexPointer(3, GL2.GL_FLOAT, 4 * pathData.getVertexStride(), 0);

	if (dc.isPickingMode()) {

		gl.glEnableClientState(GL2.GL_COLOR_ARRAY);
		gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, 0);
		gl.glColorPointer(3, GL2.GL_UNSIGNED_BYTE, 0, pickPositionColors);

	} else if (useVertexColors) {
		// Apply this path's per-position colors if we're in normal rendering mode (not picking) and this path's
		// positionColors is non-null. Convert the stride and offset from number of elements to number of bytes.
		gl.glEnableClientState(GL2.GL_COLOR_ARRAY);
		gl.glColorPointer(4, GL2.GL_FLOAT, 4 * pathData.getVertexStride(), 4 * pathData.getColorOffset());
	}

	prepareToDrawPoints(dc);

	gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, vboIds[2]);
	gl.glDrawElements(GL2.GL_POINTS, posPoints.limit(), GL2.GL_UNSIGNED_INT, 0);

	// Restore the previous GL point state.
	gl.glPointSize(1f);
	gl.glDisable(GL2.GL_POINT_SMOOTH);

	// Restore the previous GL color array state.
	if (dc.isPickingMode() || useVertexColors) {
		gl.glDisableClientState(GL2.GL_COLOR_ARRAY);
	}
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
@Override
    public void display(GLAutoDrawable drawable) {

        GL2 gl = drawable.getGL().getGL2();

        // ensure pipeline is clean before doing cl work
        gl.glFinish();

        computeHeightfield();

        gl.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT);
        gl.glLoadIdentity();

        usi.interact(gl);

        gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, glObjects[VERTICES]);
        gl.glVertexPointer(4, GL2.GL_FLOAT, 0, 0);

//            gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, glObjects[INDICES]);

        gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
        gl.glDrawArrays(GL2.GL_POINTS, 0, MESH_SIZE * MESH_SIZE);
//            gl.glDrawElements(GL2.GL_TRIANGLES, ib.capacity(), GL2.GL_UNSIGNED_INT, 0);
        gl.glDisableClientState(GL2.GL_VERTEX_ARRAY);

//            gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, 0);

    }
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 * Must be called at the end of the draw phase, after all the bodies managed
 * by this instance are drawn.
 *
 * @param gl The instance of GL2 responsible for drawing the bodies.
 * @see #startDraw Must be called in conjunction with this method.
 */
public void endDraw(GL2 gl) {
    gl.glDisableClientState(GL2.GL_TEXTURE_COORD_ARRAY);
    gl.glDisableClientState(GL2.GL_NORMAL_ARRAY);
    gl.glDisableClientState(GL2.GL_VERTEX_ARRAY);
}