android.opengl.GLU Java Examples

The following examples show how to use android.opengl.GLU. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: SimpleFPSDisplay.java From opengl with Apache License 2.0

6 votes

public void run() {
    initEGL();
    initGL();
    

    CubeSmallGLUT cube = new CubeSmallGLUT(3);        

    mGL.glMatrixMode(GL10.GL_MODELVIEW);
    mGL.glLoadIdentity();
    GLU.gluLookAt(mGL, 0, 0, 8f, 0, 0, 0, 0, 1, 0f);
    while (!mDone) {
        if (animState) {
            mGL.glClear(GL10.GL_COLOR_BUFFER_BIT
                    | GL10.GL_DEPTH_BUFFER_BIT);
            mGL.glRotatef(1f, 1f, 1f, 1f);

            cube.draw(mGL);

            mEGL.eglSwapBuffers(mGLDisplay, mGLSurface);

            calculateAndDisplayFPS();
        }
    }
}

Example #2

Source File: SimpleLitGLCube.java From opengl with Apache License 2.0

6 votes

public void run() {
    initEGL();
    initGL();
    
    CubeSmallGLUT cube = new CubeSmallGLUT(3);        
    mGL.glMatrixMode(GL10.GL_MODELVIEW);
    mGL.glLoadIdentity();
    GLU.gluLookAt(mGL, 0, 0, 8f, 0, 0, 0, 0, 1, 0f);
    while (!mDone) {
        mGL.glClear(GL10.GL_COLOR_BUFFER_BIT| GL10.GL_DEPTH_BUFFER_BIT);
        mGL.glRotatef(1f, 1f, 1f, 1f);
        mGL.glColor4f(1f, 0f, 0f, 1f);
        
        cube.draw(mGL);

        mGL.glFlush();
        mEGL.eglSwapBuffers(mGLDisplay, mGLSurface);
    }
}

Example #3

Source File: GLCanvasImpl.java From document-viewer with GNU General Public License v3.0

6 votes

@Override
public void setSize(final int width, final int height) {
    mScreenWidth = width;
    mScreenHeight = height;
    mAlpha = 1.0f;

    final GL11 gl = mGL;
    gl.glViewport(0, 0, width, height);
    gl.glMatrixMode(GL10.GL_PROJECTION);
    gl.glLoadIdentity();
    GLU.gluOrtho2D(gl, 0, width, 0, height);

    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glLoadIdentity();

    final float matrix[] = mMatrixValues;
    Matrix.setIdentityM(matrix, 0);
    // to match the graphic coordinate system in android, we flip it vertically.
    Matrix.translateM(matrix, 0, 0, height, 0);
    Matrix.scaleM(matrix, 0, 1, -1, 1);
}

Example #4

Source File: SimpleFPSDisplay.java From opengl with Apache License 2.0

6 votes

public void run() {
    initEGL();
    initGL();
    

    CubeSmallGLUT cube = new CubeSmallGLUT(3);        

    mGL.glMatrixMode(GL10.GL_MODELVIEW);
    mGL.glLoadIdentity();
    GLU.gluLookAt(mGL, 0, 0, 8f, 0, 0, 0, 0, 1, 0f);
    while (!mDone) {
        if (animState) {
            mGL.glClear(GL10.GL_COLOR_BUFFER_BIT
                    | GL10.GL_DEPTH_BUFFER_BIT);
            mGL.glRotatef(1f, 1f, 1f, 1f);

            cube.draw(mGL);

            mEGL.eglSwapBuffers(mGLDisplay, mGLSurface);

            calculateAndDisplayFPS();
        }
    }
}

Example #5

Source File: BasicGL.java From opengl with Apache License 2.0

6 votes

public void run() {
    initEGL();
    initGL();
    
    TriangleSmallGLUT triangle = new TriangleSmallGLUT(3);
    mGL.glMatrixMode(GL10.GL_MODELVIEW);
    mGL.glLoadIdentity();
    GLU.gluLookAt(mGL, 0, 0, 10f, 0, 0, 0, 0, 1, 0f);
    mGL.glColor4f(1f, 0f, 0f, 1f);
    while (!mDone) {
        mGL.glClear(GL10.GL_COLOR_BUFFER_BIT| GL10.GL_DEPTH_BUFFER_BIT);
        mGL.glRotatef(1f, 0, 0, 1f);
        
        triangle.drawColorful(mGL);
        //triangle.draw(mGL);
                        
        mEGL.eglSwapBuffers(mGLDisplay, mGLSurface);
    }
}

Example #6

Source File: BasicGLCube.java From opengl with Apache License 2.0

6 votes

public void initGL( ) {
    int width = sv.getWidth();
    int height = sv.getHeight();
    mGL.glViewport(0, 0, width, height);
    mGL.glMatrixMode(GL10.GL_PROJECTION);
    mGL.glLoadIdentity();
    float aspect = (float) width/height;
    GLU.gluPerspective(mGL, 45.0f, aspect, 1.0f, 30.0f);
     mGL.glClearColor(0.5f,0.5f,0.5f,1);
     
     // the only way to draw primitives with OpenGL ES
     mGL.glEnableClientState(GL10.GL_VERTEX_ARRAY);
     
     // some rendering options
     mGL.glShadeModel(GL10.GL_SMOOTH);
     mGL.glEnable(GL10.GL_DEPTH_TEST);
     //mGL.glEnable(GL10.GL_CULL_FACE);

    Log.i("GL", "GL initialized");
}

Example #7

Source File: BasicGLCube.java From opengl with Apache License 2.0

6 votes

public void run() {
    initEGL();
    initGL();
    
    CubeSmallGLUT cube = new CubeSmallGLUT(3);
    mGL.glMatrixMode(GL10.GL_MODELVIEW);
    mGL.glLoadIdentity();
    GLU.gluLookAt(mGL, 0, 0, 6f, 0, 0, 0, 0, 1, 0f);
    while (!mDone) {
        mGL.glClear(GL10.GL_COLOR_BUFFER_BIT| GL10.GL_DEPTH_BUFFER_BIT);
        mGL.glRotatef(1f, 1f, 1f, 1f);
        
        mGL.glColor4f(1f, 0f, 0f, 1f);

        cube.drawSimpleCube(mGL);
                        
        mEGL.eglSwapBuffers(mGLDisplay, mGLSurface);
    }
}

Example #8

Source File: BasicGLCube.java From opengl with Apache License 2.0

6 votes

public void run() {
    initEGL();
    initGL();
    
    CubeSmallGLUT cube = new CubeSmallGLUT(3);
    mGL.glMatrixMode(GL10.GL_MODELVIEW);
    mGL.glLoadIdentity();
    GLU.gluLookAt(mGL, 0, 0, 6f, 0, 0, 0, 0, 1, 0f);
    while (!mDone) {
        mGL.glClear(GL10.GL_COLOR_BUFFER_BIT| GL10.GL_DEPTH_BUFFER_BIT);
        mGL.glRotatef(1f, 1f, 1f, 1f);
        
        mGL.glColor4f(1f, 0f, 0f, 1f);

        cube.drawSimpleCube(mGL);
                        
        mEGL.eglSwapBuffers(mGLDisplay, mGLSurface);
    }
}

Example #9

Source File: BasicGLCube.java From opengl with Apache License 2.0

6 votes

public void initGL( ) {
    int width = sv.getWidth();
    int height = sv.getHeight();
    mGL.glViewport(0, 0, width, height);
    mGL.glMatrixMode(GL10.GL_PROJECTION);
    mGL.glLoadIdentity();
    float aspect = (float) width/height;
    GLU.gluPerspective(mGL, 45.0f, aspect, 1.0f, 30.0f);
     mGL.glClearColor(0.5f,0.5f,0.5f,1);
     
     // the only way to draw primitives with OpenGL ES
     mGL.glEnableClientState(GL10.GL_VERTEX_ARRAY);
     
     // some rendering options
     mGL.glShadeModel(GL10.GL_SMOOTH);
     mGL.glEnable(GL10.GL_DEPTH_TEST);
     //mGL.glEnable(GL10.GL_CULL_FACE);

    Log.i("GL", "GL initialized");
}

Example #10

Source File: SimpleLitGLCube.java From opengl with Apache License 2.0

6 votes

public void run() {
    initEGL();
    initGL();
    
    CubeSmallGLUT cube = new CubeSmallGLUT(3);        
    mGL.glMatrixMode(GL10.GL_MODELVIEW);
    mGL.glLoadIdentity();
    GLU.gluLookAt(mGL, 0, 0, 8f, 0, 0, 0, 0, 1, 0f);
    while (!mDone) {
        mGL.glClear(GL10.GL_COLOR_BUFFER_BIT| GL10.GL_DEPTH_BUFFER_BIT);
        mGL.glRotatef(1f, 1f, 1f, 1f);
        mGL.glColor4f(1f, 0f, 0f, 1f);
        
        cube.draw(mGL);

        mGL.glFlush();
        mEGL.eglSwapBuffers(mGLDisplay, mGLSurface);
    }
}

Example #11

Source File: BobRenderer.java From BobEngine with GNU Lesser General Public License v2.1

6 votes

/**
 * Handle changes such as orientation changes. This also happens when the
 * surface is created. <br />
 * <br />
 * This method will set the background color, set the viewport, remove
 * perspective.
 */
@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
	if (height == 0) {                        // Prevent A Divide By Zero By
		height = 1;                           // Making Height Equal One
	}

	camWidth = width;
	camHeight = height;

	//myOwner.getGraphicsHelper().loadAllGraphics(gl);

	gl.glViewport(0, 0, width, height);
	gl.glMatrixMode(GL10.GL_PROJECTION);      // Select The Projection Matrix
	gl.glLoadIdentity();                      // Reset The Projection Matrix
	GLU.gluOrtho2D(gl, 0, width, 0, height);  // Use orthogonic view. No perspective.

	gl.glMatrixMode(GL10.GL_MODELVIEW);       // Select The Modelview Matrix
	gl.glLoadIdentity();
}

Example #12

Source File: BasicGL.java From opengl with Apache License 2.0

6 votes

public void run() {
    initEGL();
    initGL();
    
    TriangleSmallGLUT triangle = new TriangleSmallGLUT(3);
    mGL.glMatrixMode(GL10.GL_MODELVIEW);
    mGL.glLoadIdentity();
    GLU.gluLookAt(mGL, 0, 0, 10f, 0, 0, 0, 0, 1, 0f);
    mGL.glColor4f(1f, 0f, 0f, 1f);
    while (!mDone) {
        mGL.glClear(GL10.GL_COLOR_BUFFER_BIT| GL10.GL_DEPTH_BUFFER_BIT);
        mGL.glRotatef(1f, 0, 0, 1f);
        
        triangle.drawColorful(mGL);
        //triangle.draw(mGL);
                        
        mEGL.eglSwapBuffers(mGLDisplay, mGLSurface);
    }
}

Example #13

Source File: Renderer.java From augmentedreality with Apache License 2.0

6 votes

public void onDrawFrame(GL10 gl) {
	if(ModelViewer.DEBUG) {
		frame++;
		time=System.currentTimeMillis();
		if (time - timebase > 1000) {
			Log.d("fps: ", String.valueOf(frame*1000.0f/(time-timebase)));
		 	timebase = time;		
			frame = 0;
		}
	}
	gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
	gl.glLoadIdentity();
	GLU.gluLookAt(gl, cameraPosition.x, cameraPosition.y, cameraPosition.z,
			0, 0, 0, 0, 1, 0);
	for (Iterator<Model3D> iterator = models.iterator(); iterator.hasNext();) {
		Model3D model = iterator.next();
		model.draw(gl);
	}
}

Example #14

Source File: MyGLRenderer.java From TikTok with Apache License 2.0

6 votes

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
    if (height == 0) { // Prevent A Divide By Zero By
        height = 1; // Making Height Equal One
    }
    this.width = width;
    this.height = height;
    gl.glViewport(0, 0, width, height); // Reset The
    // Current
    // Viewport
    gl.glMatrixMode(GL10.GL_PROJECTION); // Select The Projection Matrix
    gl.glLoadIdentity(); // Reset The Projection Matrix

    // Calculate The Aspect Ratio Of The Window
    GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f,
            100.0f);

    gl.glMatrixMode(GL10.GL_MODELVIEW); // Select The Modelview Matrix
    gl.glLoadIdentity();
}

Example #15

Source File: CurlRenderer.java From Android-Example with Apache License 2.0

6 votes

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
	gl.glViewport(0, 0, width, height);
	mViewportWidth = width;
	mViewportHeight = height;

	float ratio = (float) width / height;
	mViewRect.top = 1.0f;
	mViewRect.bottom = -1.0f;
	mViewRect.left = -ratio;
	mViewRect.right = ratio;
	updatePageRects();

	gl.glMatrixMode(GL10.GL_PROJECTION);
	gl.glLoadIdentity();
	if (USE_PERSPECTIVE_PROJECTION) {
		GLU.gluPerspective(gl, 20f, (float) width / height, .1f, 100f);
	} else {
		GLU.gluOrtho2D(gl, mViewRect.left, mViewRect.right,
				mViewRect.bottom, mViewRect.top);
	}

	gl.glMatrixMode(GL10.GL_MODELVIEW);
	gl.glLoadIdentity();
}

Example #16

Source File: PageRenderer.java From PlayLikeCurl with MIT License

6 votes

public void onSurfaceChanged(GL10 gl, int width, int height) {
		if(height == 0) { 						
			height = 1;
		}


		gl.glViewport(0, 0, width, height);
		gl.glMatrixMode(GL10.GL_PROJECTION);
		gl.glLoadIdentity();
if(height>width)
	GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 100.0f);
		else
	GLU.gluPerspective(gl, 45.0f, (float) height / (float) width, 0.1f, 100.0f);

		gl.glMatrixMode(GL10.GL_MODELVIEW); 	
		gl.glLoadIdentity(); 					
	}

Example #17

Source File: TouchSurfaceView.java From retrobreaker with MIT License

5 votes

@Override
public boolean onTouchEvent(MotionEvent e) {
	switch (e.getAction()) {
	case MotionEvent.ACTION_MOVE:
		final float screenX = e.getX();
		final float screenY = mScreenHeight - e.getY();

		final int[] viewport = {
				0, 0, mScreenWidth, mScreenHeight
		};

		float[] resultWorldPos = {
				0.0f, 0.0f, 0.0f, 0.0f
		};

		GLU.gluUnProject(screenX, screenY, 0, mUnprojectViewMatrix, 0, mUnprojectProjMatrix, 0,
				viewport, 0, resultWorldPos, 0);
		resultWorldPos[0] /= resultWorldPos[3];
		resultWorldPos[1] /= resultWorldPos[3];
		resultWorldPos[2] /= resultWorldPos[3];
		resultWorldPos[3] = 1.0f;

		mRenderer.updatePaddlePosition(resultWorldPos[0]);
		break;
	
	case MotionEvent.ACTION_DOWN:
		// Only start the game when the user clicks on the screen
		State.setGamePaused(false);
		break;
	}
	return true;
}

Example #18

Source File: FlipRenderer.java From UltimateAndroid with Apache License 2.0

5 votes

public static void checkError(GL10 gl) {
  if (AphidLog.ENABLE_DEBUG) {
    int error = gl.glGetError();
    if (error != 0) {
      throw new RuntimeException(GLU.gluErrorString(error));
    }
  }
}

Example #19

Source File: FlipRenderer.java From UltimateAndroid with Apache License 2.0

5 votes

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  gl.glViewport(0, 0, width, height);

  gl.glMatrixMode(GL_PROJECTION);
  gl.glLoadIdentity();

  float fovy = 20f;
  float eyeZ = height / 2f / (float) Math.tan(TextureUtils.d2r(fovy / 2));

  GLU.gluPerspective(gl, fovy, (float) width / (float) height, 0.5f,
                     eyeZ + height / 2); //set zFar be larger than eyeZ to fix issue #5

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

  GLU.gluLookAt(gl,
                width / 2f, height / 2f, eyeZ,
                width / 2f, height / 2f, 0.0f,
                0.0f, 1.0f, 0.0f
  );

  gl.glEnable(GL_LIGHTING);
  gl.glEnable(GL_LIGHT0);

  float lightAmbient[] = new float[]{3.5f, 3.5f, 3.5f, 1f};
  gl.glLightfv(GL_LIGHT0, GL_AMBIENT, lightAmbient, 0);

  light0Position = new float[]{0, 0, eyeZ, 0f};
  gl.glLightfv(GL_LIGHT0, GL_POSITION, light0Position, 0);

  if (AphidLog.ENABLE_DEBUG) {
    AphidLog.d("onSurfaceChanged: %d, %d", width, height);
  }
}

Example #20

Source File: AndroidOpenGL.java From opengl with Apache License 2.0

5 votes

public void onSurfaceChanged(GL10 gl, int width, int height) {
    gl.glViewport(0, 0, width, height);

    // configure projection to screen
    gl.glMatrixMode(GL10.GL_PROJECTION);
    gl.glLoadIdentity();
    gl.glClearColor(0.5f, 0.5f, 0.5f, 1);
    float aspect = (float) width / height;
    GLU.gluPerspective(gl, 45.0f, aspect, 1.0f, 30.0f);
}

Example #21

Source File: AndroidOpenGL.java From opengl with Apache License 2.0

5 votes

public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);

    // configure model space
    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glLoadIdentity();
    GLU.gluLookAt(gl, 0, 0, 10f, 0, 0, 0, 0, 1, 0f);
    gl.glColor4f(1f, 0f, 0f, 1f);
}

Example #22

Source File: FlipRenderer.java From UltimateAndroid with Apache License 2.0

5 votes

public static void checkError(GL10 gl) {
  if (AphidLog.ENABLE_DEBUG) {
    int error = gl.glGetError();
    if (error != 0) {
      throw new RuntimeException(GLU.gluErrorString(error));
    }
  }
}

Example #23

Source File: FlipRenderer.java From UltimateAndroid with Apache License 2.0

5 votes

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
  gl.glViewport(0, 0, width, height);

  gl.glMatrixMode(GL_PROJECTION);
  gl.glLoadIdentity();

  float fovy = 20f;
  float eyeZ = height / 2f / (float) Math.tan(TextureUtils.d2r(fovy / 2));

  GLU.gluPerspective(gl, fovy, (float) width / (float) height, 0.5f,
                     eyeZ + height / 2); //set zFar be larger than eyeZ to fix issue #5

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

  GLU.gluLookAt(gl,
                width / 2f, height / 2f, eyeZ,
                width / 2f, height / 2f, 0.0f,
                0.0f, 1.0f, 0.0f
  );

  gl.glEnable(GL_LIGHTING);
  gl.glEnable(GL_LIGHT0);

  float lightAmbient[] = new float[]{3.5f, 3.5f, 3.5f, 1f};
  gl.glLightfv(GL_LIGHT0, GL_AMBIENT, lightAmbient, 0);

  light0Position = new float[]{0, 0, eyeZ, 0f};
  gl.glLightfv(GL_LIGHT0, GL_POSITION, light0Position, 0);

  if (AphidLog.ENABLE_DEBUG) {
    AphidLog.d("onSurfaceChanged: %d, %d", width, height);
  }
}

Example #24

Source File: TGAGLSurfaceView.java From TGAReader with MIT License

5 votes

@Override
public void onSurfaceChanged(GL10 gl, int width, int height) {
	gl.glViewport(0, 0, width, height);
	
	gl.glMatrixMode(GL_PROJECTION);
	gl.glLoadIdentity();
	GLU.gluPerspective(gl, 45, (float)width/height, 1, 10);
}

Example #25

Source File: ARObject.java From geoar-app with Apache License 2.0

5 votes

private final void updateScreenCoordinates() {
	float[] screenPos = new float[3];
	// TODO FIXME XXX i think newPosition[2] has to be negative
	int result = GLU.gluProject(-newPosition[0], newPosition[1],
			newPosition[2], modelMatrix, 0, GLESCamera.projectionMatrix, 0,
			GLESCamera.viewportMatrix, 0, screenPos, 0);

	if (result == GL10.GL_TRUE) {
		screenCoordinates[0] = screenPos[0];
		screenCoordinates[1] = GLESCamera.viewportMatrix[3] - screenPos[1];
	}
}

Example #26

Source File: GLException.java From 30-android-libraries-in-30-days with Apache License 2.0

5 votes

private static String getErrorString(final int pError) {
	String errorString = GLU.gluErrorString(pError);
	if(errorString == null) {
		errorString = "Unknown error '0x" + Integer.toHexString(pError) + "'.";
	}
	return errorString;
}

Example #27

Source File: RenderFeature2.java From geoar-app with Apache License 2.0

5 votes

public float[] onScreenCoordsUpdate() {
	if (modelMatrix == null || GLESCamera.projectionMatrix == null
			|| GLESCamera.viewportMatrix == null) {
		return null;
	}
	float[] output = new float[3];
	int res = GLU.gluProject(position[0], position[1], position[2],
			modelMatrix, 0, GLESCamera.projectionMatrix, 0,
			GLESCamera.viewportMatrix, 0, output, 0);

	if (res == GL10.GL_FALSE)
		return null;
	return output;
}

Example #28

Source File: RendererUtil.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License

5 votes

/**
 * Checks for an OpenGL error and throws a {@link RendererException} if
 * there is one. Ignores the value of
 * {@link RendererUtil#ENABLE_ERROR_CHECKING}.
 */
public static void checkGLErrorForced() {
    int error = GLES20.glGetError();
    if (error != 0) {
        String message = GLU.gluErrorString(error);
        if (message == null) {
            throw new RendererException("An unknown OpenGL error has occurred.");
        } else {
            throw new RendererException("An OpenGL error has occurred: " + message);
        }
    }
}

Example #29

Source File: RendererUtil.java From jmonkeyengine with BSD 3-Clause "New" or "Revised" License

5 votes

/**
 * Checks for an OpenGL error and throws a {@link RendererException} if
 * there is one. Does nothing if {@link RendererUtil#ENABLE_ERROR_CHECKING}
 * is set to
 * <code>false</code>.
 */
public static void checkGLError() {
    if (!ENABLE_ERROR_CHECKING) {
        return;
    }
    int error = GLES20.glGetError();
    if (error != 0) {
        String message = GLU.gluErrorString(error);
        if (message == null) {
            throw new RendererException("An unknown OpenGL error has occurred.");
        } else {
            throw new RendererException("An OpenGL error has occurred: " + message);
        }
    }
}

Example #30

Source File: DemoHeartRateSensorActivity.java From BLE-Heart-rate-variability-demo with MIT License

5 votes

public void onDrawFrame(GL10 gl) {
	gl.glDisable(GL10.GL_DITHER);
	gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
	gl.glMatrixMode(GL10.GL_MODELVIEW);
	gl.glLoadIdentity();
	GLU.gluLookAt(gl, 0, 0, -5, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
	gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
	draw(gl);
}