Java GL2.glEnable方法代碼示例

import javax.media.opengl.GL2; //導入方法依賴的package包/類
public void init(GLAutoDrawable drawable) {
	System.out.println("--init--");
	GL2 gl = drawable.getGL().getGL2();
	glu = new GLU();

	System.out.println("INIT GL IS: " + gl.getClass().getName());
	if (!bDoNurbs) {
		gl.glMap2f(GL2.GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4, ctlarray, 0);
	}
	gl.glEnable(GL2.GL_MAP2_VERTEX_3);
	gl.glEnable(GL2.GL_AUTO_NORMAL);
	gl.glMapGrid2f(20, 0.0f, 1.0f, 20, 0.0f, 1.0f);

	setupLighting(drawable, gl);
	float fovy=40.f;
	float aspect=1.f;
	float znear=1.f;
	float zfar=20f;
	glu.gluPerspective(fovy, aspect, znear, zfar);

	gl.glMatrixMode(GL2.GL_MODELVIEW);
	gl.glLoadIdentity();
	glu.gluLookAt(cameraLoc.x, cameraLoc.y, cameraLoc.z,
			lookAtPt.x, lookAtPt.y, lookAtPt.z,
			cameraUpDirection.x, cameraUpDirection.y, cameraUpDirection.z);
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
protected void drawLine(DrawContext dc, Vec4 screenPoint, Vec4 projectedPoint, DetailedOrderedIcon uIcon) {
	//GL gl = dc.getGL();
	GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
	
	gl.glLoadIdentity();
	
	double opacity = uIcon.getOpacity();
	
	opacity = Math.min(opacity, .5f);
	
	gl.glDisable(GL.GL_TEXTURE_2D);
	gl.glColor4d(.2,.2,.2, opacity);
	
	gl.glBegin(GL.GL_LINES);
		gl.glVertex2d(screenPoint.x, screenPoint.y);
		gl.glVertex2d(projectedPoint.x, projectedPoint.y);
	gl.glEnd();
	gl.glEnable(GL.GL_TEXTURE_2D);
	
	gl.glColor4f(1,1,1,1);
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 *
 * @param openGl
 */
public void useCamera(final GL2 openGl) {
    if (resetProjection) {
        resetProjection = false;
        setProjection(openGl);
    }

    openGl.glLightfv(GL2.GL_LIGHT0, GL2.GL_POSITION, new float[]{1000.f,1000.f,1000.f}, 0);
    openGl.glEnable(GL2.GL_LIGHT0);

    openGl.glMatrixMode(GL2.GL_MODELVIEW);
    openGl.glLoadIdentity();
    position.translateBy(openGl);
    product.rotateAround(openGl);
    upVector.rotateAround(openGl);
    
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 *
 * @param openGl
 */
public final synchronized void draw(final GL2 openGl) {
    if (points == null || points.size() == 0) {
        return;
    }
    AbstractDoubleCordinateBuffer.bindIfExists(verticesBuf, openGl);
    openGl.glEnable(GL2.GL_POLYGON_OFFSET_FILL);
    openGl.glPolygonOffset(1.0f, 1.0f);
    AbstractDoubleCordinateBuffer.bindIfExists(lineColorBuf, openGl);
    indicesBuf.drawLine(openGl, GL2.GL_LINE_LOOP, GL2.GL_FRONT_AND_BACK);
    AbstractDoubleCordinateBuffer.unBindExists(lineColorBuf, openGl);
    AbstractDoubleCordinateBuffer.bindIfExists(pointColorBuf, openGl);

    float[] f = new float[1];
    openGl.glGetFloatv(GL2.GL_POINT_SIZE, f, 0);
    openGl.glPointSize(3.0f);
    indicesBuf.drawLine(openGl, GL2.GL_POINTS, GL2.GL_FRONT);
    openGl.glPointSize(f[0]);

    AbstractDoubleCordinateBuffer.bindIfExists(pointColorBuf, openGl);
    AbstractDoubleCordinateBuffer.unBindExists(verticesBuf, openGl);

}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
public final synchronized void draw(final GL2 openGl) {

        AbstractDoubleCordinateBuffer.bindIfExists(verticesBuf, openGl);
        AbstractDoubleCordinateBuffer.bindIfExists(normalsBuf, openGl);
        AbstractDoubleCordinateBuffer.bindIfExists(faceColorBuf, openGl);
        openGl.glEnable(GL2.GL_POLYGON_OFFSET_FILL);
        openGl.glPolygonOffset(1.0f, 1.0f);
        indicesBuf.draw(openGl, GL2.GL_FILL, GL2.GL_FRONT);
        AbstractDoubleCordinateBuffer.unBindExists(faceColorBuf, openGl);
        AbstractDoubleCordinateBuffer.bindIfExists(lineColorBuf, openGl);
        indicesBuf.draw(openGl, GL2.GL_LINE, GL2.GL_FRONT_AND_BACK);
        indicesBuf.draw(openGl, GL2.GL_POINT, GL2.GL_FRONT);
        AbstractDoubleCordinateBuffer.unBindExists(lineColorBuf, openGl);

        AbstractDoubleCordinateBuffer.unBindExists(verticesBuf, openGl);
        AbstractDoubleCordinateBuffer.unBindExists(normalsBuf, openGl);

    }
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
private Vector3f drawVertex(Vector3f vert, double size, float[] color, GL2 gl, GLUT glut) {
    gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL2.GL_AMBIENT, color, 0);
    gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL2.GL_DIFFUSE, color, 0);
    gl.glMaterialf(GL.GL_FRONT_AND_BACK, GL2.GL_SHININESS, 10);

    gl.glPushAttrib(GL2.GL_LIGHTING_BIT);
    gl.glDisable(GL2.GL_TEXTURE_2D);
    gl.glEnable(GL2.GL_LIGHTING);

    gl.glPushMatrix();
    gl.glTranslatef(vert.getX(), vert.getY(), vert.getZ());

    glut.glutSolidSphere(size, 20, 20);
    gl.glPopMatrix();

    gl.glEnable(GL2.GL_TEXTURE_2D);
    gl.glDisable(GL2.GL_LIGHTING);
    gl.glPopAttrib();

    return vert;
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 *
 * @param gl
 * @param dropFaces faces to be hidden when rendering model.
 */
public void drawWithoutTextures(GL2 gl, ArrayList<Integer> dropFaces) {

    gl.glPushMatrix();
    gl.glPushAttrib(GL2.GL_LIGHTING_BIT);
    for (int i = 0; i < faces.getNumFaces(); i++) {

        gl.glDisable(GL2.GL_TEXTURE_2D);
        gl.glEnable(GL2.GL_LIGHTING);

        faces.renderFace(i, flipTexCoords, gl);

        gl.glEnable(GL2.GL_TEXTURE_2D);
        gl.glDisable(GL2.GL_LIGHTING);

    }
    gl.glPopAttrib();
    gl.glPopMatrix();

}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 * Draws the terrain.
 *
 * @param gl       The instance of GL2 responsible for drawing the body.
 * @param glut     An instance of GLUT that can be optionally used to assist
 *                 in drawing.
 * @param camPos   The position of the camera in world coordinates.
 * @param lighting The Lighting instance responsible for calculating the
 *                 lighting in this scene. Can be used to set the colours of
 *                 bodies before drawing them.
 */
public void draw(GL2 gl, GLUT glut, Vector camPos, Lighting lighting) {
    gl.glPushMatrix();
    {
        gl.glTranslated(TERRAIN_LEVEL.x(), TERRAIN_LEVEL.y(), TERRAIN_LEVEL.z());
        gl.glEnable(GL_CULL_FACE);
        lighting.setMaterial(gl, Material.DIRT, true);
        terrainBody.draw(gl);
        lighting.setMaterial(gl, Material.WATER);
        waterBody.draw(gl);
        gl.glDisable(GL_CULL_FACE);
        final Vector camPosRelativeToTerrain = camPos.subtract(TERRAIN_LEVEL);
        trees.stream().forEach((tree) -> tree.draw(gl, camPosRelativeToTerrain, lighting));
    }
    gl.glPopMatrix();
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
private Map<String, Object> setBlending() {
  Map<String, Object> result = new HashMap<>();
  GL2 gl = drawable.getGL().getGL2();

  IntBuffer equation = Buffers.newDirectIntBuffer(1);
  gl.glGetIntegerv(GL_BLEND_EQUATION, equation);
  result.put("equation", equation);

  IntBuffer sourceFactor = Buffers.newDirectIntBuffer(1);
  gl.glGetIntegerv(GL_BLEND_SRC, sourceFactor);
  result.put("sourceFactor", sourceFactor);

  IntBuffer destinationFactor = Buffers.newDirectIntBuffer(1);
  gl.glGetIntegerv(GL_BLEND_DST, destinationFactor);
  result.put("destinationFactor", destinationFactor);

  boolean enabled = gl.glIsEnabled(GL_BLEND);
  result.put("enabled", enabled);

  gl.glBlendFunc(GL_SRC_ALPHA, GL_ONE);
  gl.glBlendEquation(GL_FUNC_ADD);
  gl.glEnable(GL_BLEND);

  return result;
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
private void setLights(GL2 gl) {

		// prepare light parameters
		float SHINE_ALL_DIRECTIONS = 1;
		float[] lightPos = { -40, 0, 20, SHINE_ALL_DIRECTIONS };

		// 'weak' light which is everywhere
		float[] lightColorAmbient = { 0.2f, 0.2f, 0.2f, 1f };

		// 'strong' light from a particular spot which creates a 3d-effect
		float[] lightColorSpecular = { 0.8f, 0.8f, 0.8f, 1f };

		// set light parameters
		gl.glLightfv(GL2.GL_LIGHT1, GL2.GL_POSITION, lightPos, 0);
		gl.glLightfv(GL2.GL_LIGHT1, GL2.GL_AMBIENT, lightColorAmbient, 0);
		gl.glLightfv(GL2.GL_LIGHT1, GL2.GL_SPECULAR, lightColorSpecular, 0);

		// enable lights
		gl.glEnable(GL2.GL_LIGHT1);
		gl.glEnable(GL2.GL_LIGHTING);
	}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
@Override
	public void init( final GLAutoDrawable drawable )
	{
		final GL2 gl = drawable.getGL().getGL2();
		gl.setSwapInterval( 1 );
		gl.glEnable( GL.GL_DEPTH_TEST );
        gl.glDepthFunc( GL.GL_LEQUAL );
        gl.glShadeModel( GLLightingFunc.GL_SMOOTH );
        gl.glHint( GL2ES1.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST );
//		gl.glEnable( GL.GL_BLEND );
//		gl.glBlendFunc( GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA );
		gl.glEnable( GL2GL3.GL_POLYGON_SMOOTH );

		final float w = this.window.getDrawableSurface().getWidth();
		final float h = this.window.getDrawableSurface().getHeight();

		// Set the projection matrix (only done once - just here)
		gl.glMatrixMode( GLMatrixFunc.GL_PROJECTION );
		gl.glLoadIdentity();
		this.glu.gluPerspective( 50, (w / h), 0.01, 10 );

		// Set the initial model matrix
		gl.glMatrixMode( GLMatrixFunc.GL_MODELVIEW );
		gl.glLoadIdentity();
		gl.glViewport( 0, 0, (int) w, (int) h ); /* viewport size in pixels */
	}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
public void init(GLAutoDrawable drawable) 
{
  GL2 gl = drawable.getGL().getGL2();
  gl.glEnable(GL2.GL_CULL_FACE);
  gl.glEnable(GL2.GL_DEPTH_TEST);
  gl.glEnable(GL2.GL_NORMALIZE);
  gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
protected void renderPatchBoundary(DrawContext dc, RectTile tile)
{
   // GL gl = dc.getGL();
	GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
    OGLStackHandler ogsh = new OGLStackHandler();

    ogsh.pushAttrib(gl, GL2.GL_ENABLE_BIT | GL2.GL_CURRENT_BIT | GL2.GL_POLYGON_BIT);
    try
    {
        gl.glDisable(GL.GL_BLEND);

        // Don't perform depth clipping but turn on backface culling
        gl.glDisable(GL.GL_DEPTH_TEST);
        gl.glEnable(GL.GL_CULL_FACE);
        gl.glCullFace(GL.GL_BACK);
        gl.glPolygonMode(GL.GL_FRONT, GL2.GL_LINE);

        Vec4[] corners = tile.sector.computeCornerPoints(dc.getGlobe(), dc.getVerticalExaggeration());

        gl.glColor4d(1d, 0, 0, 1d);
        gl.glBegin(javax.media.opengl.GL2.GL_QUADS);
        gl.glVertex3d(corners[0].x, corners[0].y, corners[0].z);
        gl.glVertex3d(corners[1].x, corners[1].y, corners[1].z);
        gl.glVertex3d(corners[2].x, corners[2].y, corners[2].z);
        gl.glVertex3d(corners[3].x, corners[3].y, corners[3].z);
        gl.glEnd();
    }
    finally
    {
        ogsh.pop(gl);
    }
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
private void beginDrawLasso(DrawContext dc) {
	//GL gl = dc.getGL();
	GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.

	int attributeMask =
		GL.GL_DEPTH_BUFFER_BIT // for depth test, depth mask and depth func
			| GL2.GL_TRANSFORM_BIT // for modelview and perspective
			| GL2.GL_VIEWPORT_BIT // for depth range
			| GL2.GL_CURRENT_BIT // for current color
			| GL2.GL_COLOR_BUFFER_BIT // for alpha test func and ref, and blend
			| GL2.GL_DEPTH_BUFFER_BIT // for depth func
			| GL2.GL_ENABLE_BIT; // for enable/disable changes
	gl.glPushAttrib(attributeMask);

	// Apply the depth buffer but don't change it.
	gl.glEnable(GL.GL_DEPTH_TEST);
	gl.glDepthFunc(GL.GL_ALWAYS);
	gl.glDepthMask(false);

	// Load a parallel projection with dimensions (viewportWidth, viewportHeight)
	int[] viewport = new int[4];
	gl.glGetIntegerv(GL.GL_VIEWPORT, viewport, 0);
	gl.glMatrixMode(GL2.GL_PROJECTION);
	gl.glPushMatrix();
	gl.glLoadIdentity();
	gl.glOrtho(0d, viewport[2], 0d, viewport[3], -1d, 1d);

	gl.glMatrixMode(GL2.GL_MODELVIEW);
	gl.glPushMatrix();
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
protected void setBlendingFunction(DrawContext dc)
{
	// Set up a premultiplied-alpha blending function. Any texture read by JOGL will have alpha-premultiplied color
	// components, as will any DDS file created by World Wind or the World Wind WMS. We'll also set up the base
	// color as a premultiplied color, so that any incoming premultiplied color will be properly combined with the
	// base color.

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

	double alpha = this.getOpacity();
	gl.glColor4d(alpha, alpha, alpha, alpha);
	gl.glEnable(GL.GL_BLEND);
	gl.glBlendFunc(GL.GL_ONE, GL.GL_ONE_MINUS_SRC_ALPHA);
}