Java Code Examples for javax.microedition.khronos.opengles.GL10#glCullFace()

The following examples show how to use javax.microedition.khronos.opengles.GL10#glCullFace() . 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: SolarSystemRenderer.java From opengl with Apache License 2.0

6 votes

public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    /*
     * By default, OpenGL enables features that improve quality
     * but reduce performance. One might want to tweak that
     * especially on software renderer.
     */
    gl.glDisable(GL10.GL_DITHER);

    /*
     * Some one-time OpenGL initialization can be made here
     * probably based on features of this particular context
     */
     gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT,
             GL10.GL_FASTEST);

     gl.glEnable(GL10.GL_CULL_FACE);
     gl.glCullFace(GL10.GL_BACK);
     gl.glShadeModel(GL10.GL_SMOOTH);
     gl.glEnable(GL10.GL_DEPTH_TEST);
}

Example 2

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

6 votes

public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    /*
     * By default, OpenGL enables features that improve quality
     * but reduce performance. One might want to tweak that
     * especially on software renderer.
     */
    gl.glDisable(GL10.GL_DITHER);

    /*
     * Some one-time OpenGL initialization can be made here
     * probably based on features of this particular context
     */
     gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT,
             GL10.GL_FASTEST);

     gl.glEnable(GL10.GL_CULL_FACE);
     gl.glCullFace(GL10.GL_BACK);
     gl.glShadeModel(GL10.GL_SMOOTH);
     gl.glEnable(GL10.GL_DEPTH_TEST);
}

Example 3

Source File: PLHotspot.java From PanoramaGL with Apache License 2.0

5 votes

/**render methods*/

@Override
protected void internalRender(GL10 gl, PLIRenderer renderer)
{
	this.calculateCoords(gl);
	
	List<PLITexture> textures = this.getTextures();
	int textureId = (textures.size() > 0 ? textures.get(0).getTextureId(gl) : 0);
	if(textureId == 0 || mVertexsBuffer == null || mTextureCoordsBuffer == null)
		return;
	
	gl.glEnable(GL10.GL_TEXTURE_2D);
	
	PLIView view = renderer.getInternalView();
	gl.glColor4f(1.0f, 1.0f, 1.0f, (view != null && view.isValidForTransition()) || this.getTouchStatus() == PLSceneElementTouchStatus.PLSceneElementTouchStatusOut ? this.getAlpha() : mOverAlpha);
	
	gl.glVertexPointer(3, GL10.GL_FLOAT, 0, mVertexsBuffer);
	gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, mTextureCoordsBuffer);
	gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
	gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
	
	gl.glEnable(GL10.GL_CULL_FACE);
	gl.glCullFace(GL10.GL_FRONT);
	gl.glShadeModel(GL10.GL_SMOOTH);
	
	gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);
	
	gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4);
	
	gl.glDisable(GL10.GL_TEXTURE_2D);
	gl.glDisable(GL10.GL_BLEND);
	gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
	gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
}

Example 4

Source File: OpenGLRenderer.java From smartGL with Apache License 2.0

5 votes

private void checkDoubleSided(GL10 gl) {
    if (mDoubleSided != null) {
        if (mDoubleSided.booleanValue()) {
            gl.glDisable(GL10.GL_CULL_FACE);
        } else {
            gl.glEnable(GL10.GL_CULL_FACE);
            gl.glCullFace(GL10.GL_FRONT);
        }
        mDoubleSided = null;    // applied
    }
}

Example 5

Source File: PLHotspot.java From panoramagl with Apache License 2.0

5 votes

/**
 * render methods
 */

@Override
protected void internalRender(GL10 gl, PLIRenderer renderer) {
    this.calculateCoords(gl);

    List<PLITexture> textures = this.getTextures();
    int textureId = (textures.size() > 0 ? textures.get(0).getTextureId(gl) : 0);
    if (textureId == 0 || mVertexsBuffer == null || mTextureCoordsBuffer == null)
        return;

    gl.glEnable(GL10.GL_TEXTURE_2D);

    PLIView view = renderer.getInternalView();
    gl.glColor4f(1.0f, 1.0f, 1.0f, (view != null && view.isValidForTransition()) || this.getTouchStatus() == PLSceneElementTouchStatus.PLSceneElementTouchStatusOut ? this.getAlpha() : mOverAlpha);

    gl.glVertexPointer(3, GL10.GL_FLOAT, 0, mVertexsBuffer);
    gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, mTextureCoordsBuffer);
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);

    gl.glEnable(GL10.GL_CULL_FACE);
    gl.glCullFace(GL10.GL_FRONT);
    gl.glShadeModel(GL10.GL_SMOOTH);

    gl.glBindTexture(GL10.GL_TEXTURE_2D, textureId);

    gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4);

    gl.glDisable(GL10.GL_TEXTURE_2D);
    gl.glDisable(GL10.GL_BLEND);
    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
}

Example 6

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

5 votes

/**
 * This function draws our square on screen.
 * @param gl
 */
public void draw(GL10 gl) {
  //set a color other then white, which is blue/purple
  gl.glColor4f(0.5f, 0.5f, 1.0f, 1.0f); // 0x8080FFFF
	// Counter-clockwise winding.
	gl.glFrontFace(GL10.GL_CCW); // OpenGL docs
	// Enable face culling.
	gl.glEnable(GL10.GL_CULL_FACE); // OpenGL docs
	// What faces to remove with the face culling.
	gl.glCullFace(GL10.GL_BACK); // OpenGL docs

	// Enabled the vertices buffer for writing and to be used during
	// rendering.
	gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);// OpenGL docs.
	// Specifies the location and data format of an array of vertex
	// coordinates to use when rendering.
	gl.glVertexPointer(3, GL10.GL_FLOAT, 0, // OpenGL docs
                                vertexBuffer);

	gl.glDrawElements(GL10.GL_TRIANGLES, indices.length,// OpenGL docs
			  GL10.GL_UNSIGNED_SHORT, indexBuffer);

	// Disable the vertices buffer.
	gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); // OpenGL docs
	// Disable face culling.
	gl.glDisable(GL10.GL_CULL_FACE); // OpenGL docs
}

Example 7

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

5 votes

@Override
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    // preparation
    Log.i(LOG_TAG, "onSurfaceCreated()");
    gl.glMatrixMode(GL10.GL_PROJECTION);
    float size = .01f * (float) Math.tan(Math.toRadians(45.0) / 2); 
    float ratio = _width / _height;
    // perspective:
    gl.glFrustumf(-size, size, -size / ratio, size / ratio, 0.01f, 100.0f);
    // orthographic:
    //gl.glOrthof(-1, 1, -1 / ratio, 1 / ratio, 0.01f, 100.0f);
    gl.glViewport(0, 0, (int) _width, (int) _height);
    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glEnable(GL10.GL_DEPTH_TEST);
    
// define the color we want to be displayed as the "clipping wall"
gl.glClearColor(0f, 0f, 0f, 1.0f);

// enable the differentiation of which side may be visible 
gl.glEnable(GL10.GL_CULL_FACE);
// which is the front? the one which is drawn counter clockwise
gl.glFrontFace(GL10.GL_CCW);
// which one should NOT be drawn
gl.glCullFace(GL10.GL_BACK);

gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10.GL_COLOR_ARRAY);

initTriangle();
}

Example 8

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

5 votes

/**
 * This function draws our square on screen.
 * @param gl
 */
public void draw(GL10 gl) {
  //set a color other then white, which is blue/purple
  gl.glColor4f(0.5f, 0.5f, 1.0f, 1.0f); // 0x8080FFFF
	// Counter-clockwise winding.
	gl.glFrontFace(GL10.GL_CCW); // OpenGL docs
	// Enable face culling.
	gl.glEnable(GL10.GL_CULL_FACE); // OpenGL docs
	// What faces to remove with the face culling.
	gl.glCullFace(GL10.GL_BACK); // OpenGL docs

	// Enabled the vertices buffer for writing and to be used during
	// rendering.
	gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);// OpenGL docs.
	// Specifies the location and data format of an array of vertex
	// coordinates to use when rendering.
	gl.glVertexPointer(3, GL10.GL_FLOAT, 0, // OpenGL docs
                                vertexBuffer);

	gl.glDrawElements(GL10.GL_TRIANGLES, indices.length,// OpenGL docs
			  GL10.GL_UNSIGNED_SHORT, indexBuffer);

	// Disable the vertices buffer.
	gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); // OpenGL docs
	// Disable face culling.
	gl.glDisable(GL10.GL_CULL_FACE); // OpenGL docs
}

Example 9

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

5 votes

@Override
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    // preparation
    Log.i(LOG_TAG, "onSurfaceCreated()");
    gl.glMatrixMode(GL10.GL_PROJECTION);
    float size = .01f * (float) Math.tan(Math.toRadians(45.0) / 2); 
    float ratio = _width / _height;
    // perspective:
    gl.glFrustumf(-size, size, -size / ratio, size / ratio, 0.01f, 100.0f);
    // orthographic:
    //gl.glOrthof(-1, 1, -1 / ratio, 1 / ratio, 0.01f, 100.0f);
    gl.glViewport(0, 0, (int) _width, (int) _height);
    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glEnable(GL10.GL_DEPTH_TEST);
    
// define the color we want to be displayed as the "clipping wall"
gl.glClearColor(0f, 0f, 0f, 1.0f);

// enable the differentiation of which side may be visible 
gl.glEnable(GL10.GL_CULL_FACE);
// which is the front? the one which is drawn counter clockwise
gl.glFrontFace(GL10.GL_CCW);
// which one should NOT be drawn
gl.glCullFace(GL10.GL_BACK);

gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10.GL_COLOR_ARRAY);

initTriangle();
}

Example 10

Source File: TGAGLSurfaceView.java From TGAReader with MIT License

5 votes

@Override
public void onDrawFrame(GL10 gl) {
	gl.glClearColor(0.5f, 0.5f, 0.5f, 1);
	gl.glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT);
	
	gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
	gl.glVertexPointer(3, GL10.GL_FLOAT, 0, positionBuffer);

	gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
	gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, texcoordBuffer);
	
	gl.glEnable(GL_CULL_FACE);
	gl.glCullFace(GL_BACK);
	
	gl.glMatrixMode(GL10.GL_MODELVIEW);
	gl.glLoadIdentity();
	GLU.gluLookAt(gl, 3, 3, 3, 0, 0, 0, 0, 1, 0);
	
	// draw front and back
	draw(gl, tgaTextures[0]);
	
	// draw left and right
	gl.glPushMatrix();
	gl.glRotatef(90, 0, 1, 0);
	draw(gl, tgaTextures[1]);
	gl.glPopMatrix();
	
	// draw top and bottom
	gl.glPushMatrix();
	gl.glRotatef(-90, 1, 0, 0);
	draw(gl, tgaTextures[2]);
	gl.glPopMatrix();
}

Example 11

Source File: PLCubicPanorama.java From PanoramaGL with Apache License 2.0

4 votes

/**render methods*/

@Override
protected void internalRender(GL10 gl, PLIRenderer renderer)
{
	gl.glEnable(GL10.GL_TEXTURE_2D);
	
	gl.glEnable(GL10.GL_CULL_FACE);
	gl.glCullFace(GL10.GL_FRONT);
	gl.glShadeModel(GL10.GL_SMOOTH);
	
	gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
	gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
	gl.glVertexPointer(3, GL10.GL_FLOAT, 0, sCubeBuffer);
	gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, sTextureCoordsBuffer);
	
	// Front Face
	if(this.bindTextureByIndex(gl, PLConstants.kCubeFrontFaceIndex))
	{
		gl.glNormal3f(0.0f, 0.0f, 1.0f);
		gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4);
	}
	
	// Back Face
	if(this.bindTextureByIndex(gl, PLConstants.kCubeBackFaceIndex))
	{
		gl.glNormal3f(0.0f, 0.0f, -1.0f);
		gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 4, 4);
	}
	
	// Left Face
	if(this.bindTextureByIndex(gl, PLConstants.kCubeLeftFaceIndex))
	{
		gl.glNormal3f(1.0f, 0.0f, 0.0f);
		gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 8, 4);
	}
	
	// Right Face
	if(this.bindTextureByIndex(gl, PLConstants.kCubeRightFaceIndex))
	{
		gl.glNormal3f(-1.0f, 0.0f, 0.0f);
		gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 12, 4);
	}
	
	// Up Face
	if(this.bindTextureByIndex(gl, PLConstants.kCubeUpFaceIndex))
	{
		gl.glNormal3f(0.0f, 1.0f, 0.0f);
		gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 16, 4);
	}
	
	// Down Face
	if(this.bindTextureByIndex(gl, PLConstants.kCubeDownFaceIndex))
	{
		gl.glNormal3f(0.0f, -1.0f, 0.0f);
		gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 20, 4);
	}
	
	gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
	gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);	
	gl.glDisable(GL10.GL_CULL_FACE);
	gl.glDisable(GL10.GL_TEXTURE_2D);
}

Example 12

Source File: PLCubicPanorama.java From panoramagl with Apache License 2.0

4 votes

/**
 * render methods
 */

@Override
protected void internalRender(GL10 gl, PLIRenderer renderer) {
    gl.glEnable(GL10.GL_TEXTURE_2D);

    gl.glEnable(GL10.GL_CULL_FACE);
    gl.glCullFace(GL10.GL_FRONT);
    gl.glShadeModel(GL10.GL_SMOOTH);

    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
    gl.glVertexPointer(3, GL10.GL_FLOAT, 0, sCubeBuffer);
    gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, sTextureCoordsBuffer);

    // Front Face
    if (this.bindTextureByIndex(gl, PLConstants.kCubeFrontFaceIndex)) {
        gl.glNormal3f(0.0f, 0.0f, 1.0f);
        gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4);
    }

    // Back Face
    if (this.bindTextureByIndex(gl, PLConstants.kCubeBackFaceIndex)) {
        gl.glNormal3f(0.0f, 0.0f, -1.0f);
        gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 4, 4);
    }

    // Left Face
    if (this.bindTextureByIndex(gl, PLConstants.kCubeLeftFaceIndex)) {
        gl.glNormal3f(1.0f, 0.0f, 0.0f);
        gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 8, 4);
    }

    // Right Face
    if (this.bindTextureByIndex(gl, PLConstants.kCubeRightFaceIndex)) {
        gl.glNormal3f(-1.0f, 0.0f, 0.0f);
        gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 12, 4);
    }

    // Up Face
    if (this.bindTextureByIndex(gl, PLConstants.kCubeUpFaceIndex)) {
        gl.glNormal3f(0.0f, 1.0f, 0.0f);
        gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 16, 4);
    }

    // Down Face
    if (this.bindTextureByIndex(gl, PLConstants.kCubeDownFaceIndex)) {
        gl.glNormal3f(0.0f, -1.0f, 0.0f);
        gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 20, 4);
    }

    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
    gl.glDisable(GL10.GL_CULL_FACE);
    gl.glDisable(GL10.GL_TEXTURE_2D);
}