Android Open Source - gdx-vr Type Transformer

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Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUC...

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Java Source Code

/*******************************************************************************
 * Copyright 2011 See AUTHORS file.//from w ww  . ja  v  a  2s  .com
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package com.badlogic.gdx.vr;

import com.badlogic.gdx.graphics.PerspectiveCamera;
import com.badlogic.gdx.math.MathUtils;
import com.badlogic.gdx.utils.viewport.Viewport;
import com.google.vrtoolkit.cardboard.EyeParams;

/**
 * @author Daniel Holderbaum
 */
public abstract class TypeTransformer {

  public static EyeParams transform(Viewport viewport) {
    int eye = viewport == VirtualReality.head.getLeftEye() ? 0 : 1;
    EyeParams eyeParams = new EyeParams(eye);

    eyeParams.getViewport().setViewport(viewport.getScreenX(), viewport.getScreenY(), MathUtils.nextPowerOfTwo(viewport.getScreenWidth()),
        MathUtils.nextPowerOfTwo(viewport.getScreenHeight()));

    float fov = ((PerspectiveCamera) viewport.getCamera()).fieldOfView;
    eyeParams.getFov().setLeft(fov);
    eyeParams.getFov().setRight(fov);
    eyeParams.getFov().setTop(fov);
    eyeParams.getFov().setBottom(fov);

    for (int i = 0; i < 16; i++) {
      eyeParams.getTransform().getEyeView()[i] = viewport.getCamera().view.val[i];
    }

    for (int i = 0; i < 16; i++) {
      eyeParams.getTransform().getPerspective()[i] = viewport.getCamera().projection.val[i];
    }

    return eyeParams;
  }

}

Java Source Code List