/
ARRenderer.java
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/
ARRenderer.java
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/*
* ARRenderer.java
* ARToolKit5
*
* This file is part of ARToolKit.
*
* ARToolKit is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* ARToolKit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with ARToolKit. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders of this library give you
* permission to link this library with independent modules to produce an
* executable, regardless of the license terms of these independent modules, and to
* copy and distribute the resulting executable under terms of your choice,
* provided that you also meet, for each linked independent module, the terms and
* conditions of the license of that module. An independent module is a module
* which is neither derived from nor based on this library. If you modify this
* library, you may extend this exception to your version of the library, but you
* are not obligated to do so. If you do not wish to do so, delete this exception
* statement from your version.
*
* Copyright 2015 Daqri, LLC.
* Copyright 2011-2015 ARToolworks, Inc.
*
* Author(s): Julian Looser, Philip Lamb
*
*/
package org.artoolkit.ar.base.rendering;
import javax.microedition.khronos.opengles.GL10;
import javax.microedition.khronos.egl.EGLConfig;
import org.artoolkit.ar.base.ARToolKit;
import android.opengl.GLES10;
import android.opengl.GLSurfaceView;
/**
* Base renderer which should be subclassed in the main application and provided
* to the ARActivity using its {@link supplyRenderer} method.
*
* Subclasses should override {@link configureARScene}, which will be called by
* the Activity when AR initialisation is complete. The Renderer can use this method
* to add markers to the scene, and perform other scene initialisation.
*
* The {@link draw} method should also be override to perfom actual rendering. This is
* in preference to directly overriding {@link onDrawFrame}, because ARRenderer will check
* that the ARToolKit is running before calling draw.
*
*/
public class ARRenderer implements GLSurfaceView.Renderer {
/**
* Allows subclasses to load markers and prepare the scene. This is called after
* initialisation is complete.
*/
public boolean configureARScene() {
return true;
}
public void onSurfaceCreated(GL10 unused, EGLConfig config) {
// Transparent background
GLES10.glClearColor(0.0f, 0.0f, 0.0f, 0.f);
}
public void onSurfaceChanged(GL10 unused, int w, int h) {
GLES10.glViewport(0, 0, w, h);
}
public void onDrawFrame(GL10 gl) {
if (ARToolKit.getInstance().isRunning()) {
draw(gl);
}
}
/**
* Should be overridden in subclasses and used to perform rendering.
*/
public void draw(GL10 gl) {
GLES10.glClear(GLES10.GL_COLOR_BUFFER_BIT | GLES10.GL_DEPTH_BUFFER_BIT);
}
}