Example usage for android.opengl Matrix setLookAtM

Introduction

In this page you can find the example usage for android.opengl Matrix setLookAtM.

Prototype

public static void setLookAtM(float[] rm, int rmOffset, float eyeX, float eyeY, float eyeZ, float centerX,
        float centerY, float centerZ, float upX, float upY, float upZ) 

Source Link

Document

Defines a viewing transformation in terms of an eye point, a center of view, and an up vector.

Usage

From source file:Main.java

public static float[] initViewMatrix() {
    float[] matrix = new float[16];
    Matrix.setLookAtM(matrix, 0, 0f, 0f, 200f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
    return matrix;
}

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From source file:com.dmitrybrant.android.cardboardmpo.MainActivity.java

@Override
public void onNewFrame(HeadTransform headTransform) {
    Matrix.setLookAtM(camera, 0, 0.0f, 0.0f, CAMERA_Z, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);
    headTransform.getHeadView(headView, 0);
}

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From source file:com.kentdisplays.synccardboarddemo.MainActivity.java

/**
 * Prepares OpenGL ES before we draw a frame.
 * @param headTransform The head transformation in the new frame.
 *///www .  j a  v a  2 s  . c o m
@Override
public void onNewFrame(HeadTransform headTransform) {
    GLES20.glUseProgram(mGlProgram);
    GLES20.glClearColor(0f, 0f, 0f, 1.0f); // Dark background so text shows up well

    mModelViewProjectionParam = GLES20.glGetUniformLocation(mGlProgram, "u_MVP");
    mLightPosParam = GLES20.glGetUniformLocation(mGlProgram, "u_LightPos");
    mModelViewParam = GLES20.glGetUniformLocation(mGlProgram, "u_MVMatrix");
    mModelParam = GLES20.glGetUniformLocation(mGlProgram, "u_Model");
    mIsFloorParam = GLES20.glGetUniformLocation(mGlProgram, "u_IsFloor");

    // Build the camera matrix and apply it to the ModelView.
    Matrix.setLookAtM(mCamera, 0, 0.0f, 0.0f, CAMERA_Z, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);

    headTransform.getHeadView(mHeadView, 0);

    checkGLError("onReadyToDraw");
}

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From source file:com.google.vrtoolkit.cardboard.samples.treasurehunt.MainActivity.java

/**
 * Prepares OpenGL ES before we draw a frame.
 *
 * @param headTransform The head transformation in the new frame.
 *//*from w w w . ja  va2  s  .  c  o m*/
@Override
public void onNewFrame(HeadTransform headTransform) {
    // Build the Model part of the ModelView matrix.
    //Matrix.rotateM(modelCube, 0, TIME_DELTA, 0.5f, 0.5f, 1.0f);

    // Build the camera matrix and apply it to the ModelView.
    Matrix.setLookAtM(camera, 0, 0.0f, 0.0f, CAMERA_Z, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);

    headTransform.getHeadView(headView, 0);

    // Update the 3d audio engine with the most recent head rotation.
    headTransform.getQuaternion(headRotation, 0);
    cardboardAudioEngine.setHeadRotation(headRotation[0], headRotation[1], headRotation[2], headRotation[3]);

    checkGLError("onReadyToDraw");

    //float[] headAngles = new float[3];
    //headTransform.getEulerAngles(headAngles, 0)

    //float[] quat = new float[4];
    //headTransform.getQuaternion(quat, 0);
    updateMiniCubePosition(headRotation[0], headRotation[1], headRotation[2], headRotation[3]);
}

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From source file:com.tumblr.cardboard.Tumblr3DActivity.java

/**
 * Prepares OpenGL ES before we draw a frame.
 *
 * @param headTransform The head transformation in the new frame.
 *///from  w ww . j  a  v a2 s .  c  o m
@Override
public void onNewFrame(HeadTransform headTransform) {
    GLES20.glUseProgram(mGlProgram);

    mModelViewProjectionParam = GLES20.glGetUniformLocation(mGlProgram, "u_MVP");
    mLightPosParam = GLES20.glGetUniformLocation(mGlProgram, "u_LightPos");
    mModelViewParam = GLES20.glGetUniformLocation(mGlProgram, "u_MVMatrix");
    mModelParam = GLES20.glGetUniformLocation(mGlProgram, "u_Model");
    mIsFloorParam = GLES20.glGetUniformLocation(mGlProgram, "u_IsFloor");
    mRectTextureUniformParam = GLES20.glGetUniformLocation(mGlProgram, "u_Texture");

    // load gif updates into OpenGL
    synchronized (mUpdatingPhotoTextures) {
        while (!mUpdatingPhotoTextures.isEmpty()) {
            PhotoTexture texture = mUpdatingPhotoTextures.remove();
            updateTexture(texture.texIndex, texture.bitmap);
        }
    }

    // load new photos into OpenGL
    synchronized (mWaitingPhotoTextures) {
        // load downloaded photos into OpenGL
        while (!mWaitingPhotoTextures.isEmpty()) {
            PhotoTexture texture = mWaitingPhotoTextures.remove();
            loadTextureInternal(texture.texIndex, texture.bitmap, texture.recycle);

            if (texture.texIndex >= NUM_IMAGES_STATIC) {
                // First image that loads shows up in the "theater!"
                if (mSelectedTexIndex < 0) {
                    mSelectedTexIndex = texture.texIndex;
                    selectPhoto(texture.texIndex - NUM_IMAGES_STATIC);
                } else {
                    // Put image in the right spot
                    unselectPhoto(texture.texIndex - NUM_IMAGES_STATIC);
                }
            } else if (texture.texIndex == STATIC_TEXTURE_ID_REFRESH) {
                placePhoto(mModelRect, mImageRect, texture.texIndex, 1, 180, 30, SPHERE_RADIUS / 2);
            } else if (texture.texIndex == STATIC_TEXTURE_ID_PLAY) {
                placePhoto(mModelRect, mImageRect, texture.texIndex, 1, 210, 30, SPHERE_RADIUS / 2);
            } else if (texture.texIndex == STATIC_TEXTURE_ID_PAUSE) {
                placePhoto(mModelRect, mImageRect, texture.texIndex, 1, 150, 30, SPHERE_RADIUS / 2);
            }
        }
    }

    // Build the camera matrix and apply it to the ModelView.
    Matrix.setLookAtM(mCamera, 0, 0.0f, 0.0f, CAMERA_Z, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f);

    headTransform.getHeadView(mHeadView, 0);

    checkGLError("onReadyToDraw");
}

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