javax.microedition.khronos.opengles.GL10#glActiveTexture

Source File: KubeRenderer.java From codeexamples-android with Eclipse Public License 1.0

6 votes

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

    /*
     * Set our projection matrix. This doesn't have to be done
     * each time we draw, but usually a new projection needs to be set
     * when the viewport is resized.
     */

    float ratio = (float)width / height;
    gl.glMatrixMode(GL10.GL_PROJECTION);
    gl.glLoadIdentity();
    gl.glFrustumf(-ratio, ratio, -1, 1, 2, 12);

    /*
     * 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);
    gl.glActiveTexture(GL10.GL_TEXTURE0);
}

Source File: TGAGLSurfaceView.java From TGAReader with MIT License

5 votes

private void draw(GL10 gl, int texture) {
	
	gl.glEnable(GL_TEXTURE_2D);
	gl.glActiveTexture(GL_TEXTURE0);
	gl.glBindTexture(GL_TEXTURE_2D, texture);
	
	// front
	gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 0, 4);
	// back
	gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP, 4, 4);
	
	gl.glDisable(GL_TEXTURE_2D);
}

Source File: FrameBufferObjectActivity.java From codeexamples-android with Eclipse Public License 1.0

5 votes

private void drawOnscreen(GL10 gl, int width, int height) {
    gl.glViewport(0, 0, width, height);
    float ratio = (float) width / height;
    gl.glMatrixMode(GL10.GL_PROJECTION);
    gl.glLoadIdentity();
    gl.glFrustumf(-ratio, ratio, -1, 1, 3, 7);

    gl.glClearColor(0,0,1,0);
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
    gl.glBindTexture(GL10.GL_TEXTURE_2D, mTargetTexture);

    gl.glTexEnvf(GL10.GL_TEXTURE_ENV, GL10.GL_TEXTURE_ENV_MODE,
            GL10.GL_REPLACE);

    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);
    gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);

    gl.glActiveTexture(GL10.GL_TEXTURE0);

    long time = SystemClock.uptimeMillis() % 4000L;
    float angle = 0.090f * ((int) time);

    gl.glRotatef(angle, 0, 0, 1.0f);

    mTriangle.draw(gl);

    // Restore default state so the other renderer is not affected.

    gl.glBindTexture(GL10.GL_TEXTURE_2D, 0);
    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
}

Source File: MatrixPaletteRenderer.java From codeexamples-android with Eclipse Public License 1.0

4 votes

public void onDrawFrame(GL10 gl) {
    /*
     * 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);

    gl.glTexEnvx(GL10.GL_TEXTURE_ENV, GL10.GL_TEXTURE_ENV_MODE,
            GL10.GL_MODULATE);

    /*
     * Usually, the first thing one might want to do is to clear
     * the screen. The most efficient way of doing this is to use
     * glClear().
     */

    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);

    gl.glEnable(GL10.GL_DEPTH_TEST);

    gl.glEnable(GL10.GL_CULL_FACE);

    /*
     * Now we're ready to draw some 3D objects
     */

    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);
    gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);

    gl.glActiveTexture(GL10.GL_TEXTURE0);
    gl.glBindTexture(GL10.GL_TEXTURE_2D, mTextureID);
    gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S,
            GL10.GL_REPEAT);
    gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T,
            GL10.GL_REPEAT);

    long time = SystemClock.uptimeMillis() % 4000L;

    // Rock back and forth
    double animationUnit = ((double) time) / 4000;
    float unitAngle = (float) Math.cos(animationUnit * 2 * Math.PI);
    float angle = unitAngle * 135f;

    gl.glEnable(GL11Ext.GL_MATRIX_PALETTE_OES);
    gl.glMatrixMode(GL11Ext.GL_MATRIX_PALETTE_OES);

    GL11Ext gl11Ext = (GL11Ext) gl;

    // matrix 0: no transformation
    gl11Ext.glCurrentPaletteMatrixOES(0);
    gl11Ext.glLoadPaletteFromModelViewMatrixOES();


    // matrix 1: rotate by "angle"
    gl.glRotatef(angle, 0, 0, 1.0f);

    gl11Ext.glCurrentPaletteMatrixOES(1);
    gl11Ext.glLoadPaletteFromModelViewMatrixOES();

    mGrid.draw(gl);

    gl.glDisable(GL11Ext.GL_MATRIX_PALETTE_OES);
}

Source File: CubeMapActivity.java From codeexamples-android with Eclipse Public License 1.0

4 votes

public void onDrawFrame(GL10 gl) {
    checkGLError(gl);
    if (mContextSupportsCubeMap) {
        gl.glClearColor(0,0,1,0);
    } else {
        // Current context doesn't support cube maps.
        // Indicate this by drawing a red background.
        gl.glClearColor(1,0,0,0);
    }
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
    gl.glEnable(GL10.GL_DEPTH_TEST);
    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glLoadIdentity();

    GLU.gluLookAt(gl, 0, 0, -5, 0f, 0f, 0f, 0f, 1.0f, 0.0f);
    gl.glRotatef(mAngle,        0, 1, 0);
    gl.glRotatef(mAngle*0.25f,  1, 0, 0);

    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);

    checkGLError(gl);

    if (mContextSupportsCubeMap) {
        gl.glActiveTexture(GL10.GL_TEXTURE0);
        checkGLError(gl);
        gl.glEnable(GL11ExtensionPack.GL_TEXTURE_CUBE_MAP);
        checkGLError(gl);
        gl.glBindTexture(GL11ExtensionPack.GL_TEXTURE_CUBE_MAP, mCubeMapTextureID);
        checkGLError(gl);
        GL11ExtensionPack gl11ep = (GL11ExtensionPack) gl;
        gl11ep.glTexGeni(GL11ExtensionPack.GL_TEXTURE_GEN_STR,
                GL11ExtensionPack.GL_TEXTURE_GEN_MODE,
                GL11ExtensionPack.GL_REFLECTION_MAP);
        checkGLError(gl);
        gl.glEnable(GL11ExtensionPack.GL_TEXTURE_GEN_STR);
        checkGLError(gl);
        gl.glTexEnvx(GL10.GL_TEXTURE_ENV, GL10.GL_TEXTURE_ENV_MODE, GL10.GL_DECAL);
    }

    checkGLError(gl);
    mGrid.draw(gl);

    if (mContextSupportsCubeMap) {
        gl.glDisable(GL11ExtensionPack.GL_TEXTURE_GEN_STR);
    }
    checkGLError(gl);

    mAngle += 1.2f;
}

Source File: TriangleRenderer.java From codeexamples-android with Eclipse Public License 1.0

4 votes

public void onDrawFrame(GL10 gl) {
    /*
     * 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);

    gl.glTexEnvx(GL10.GL_TEXTURE_ENV, GL10.GL_TEXTURE_ENV_MODE,
            GL10.GL_MODULATE);

    /*
     * Usually, the first thing one might want to do is to clear
     * the screen. The most efficient way of doing this is to use
     * glClear().
     */

    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);

    /*
     * Now we're ready to draw some 3D objects
     */

    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);
    gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);

    gl.glActiveTexture(GL10.GL_TEXTURE0);
    gl.glBindTexture(GL10.GL_TEXTURE_2D, mTextureID);
    gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S,
            GL10.GL_REPEAT);
    gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T,
            GL10.GL_REPEAT);

    long time = SystemClock.uptimeMillis() % 4000L;
    float angle = 0.090f * ((int) time);

    gl.glRotatef(angle, 0, 0, 1.0f);

    mTriangle.draw(gl);
}

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