コード例 #1
0
 /**
  * Sets the up axis for this {@link ATransformable3D} object. If this is part of a scene graph,
  * the graph will be notified of the change.
  *
  * @param x double The x component of the new up axis.
  * @param y double The y component of the new up axis.
  * @param z double The z component of the new up axis.
  * @return A reference to this {@link ATransformable3D} to facilitate chaining.
  */
 public ATransformable3D setUpAxis(double x, double y, double z) {
   mUpAxis.setAll(x, y, z);
   if (mLookAtEnabled && mLookAtValid) {
     mOrientation.lookAt(mLookAt, mUpAxis);
     markModelMatrixDirty();
   }
   return this;
 }
コード例 #2
0
 /**
  * Resets the up axis for this {@link ATransformable3D} object to the +Y axis. If this is part of
  * a scene graph, the graph will be notified of the change.
  *
  * @return A reference to this {@link ATransformable3D} to facilitate chaining.
  */
 public ATransformable3D resetUpAxis() {
   mUpAxis.setAll(Vector3.getAxisVector(Vector3.Axis.Y));
   if (mLookAtEnabled && mLookAtValid) {
     mOrientation.lookAt(mLookAt, mUpAxis);
     markModelMatrixDirty();
   }
   return this;
 }
コード例 #3
0
 /**
  * Resets the orientation of this {@link ATransformable3D} object to look at its look at target
  * and use the specified {@link Vector3} as up. If this is part of a scene graph, the graph will
  * be notified of the change.
  *
  * @param upAxis {@link Vector3} The direction to use as the up axis.
  * @return A reference to this {@link ATransformable3D} to facilitate chaining.
  */
 public ATransformable3D resetToLookAt(Vector3 upAxis) {
   mTempVec.subtractAndSet(mLookAt, mPosition);
   // In OpenGL, Cameras are defined such that their forward axis is -Z, not +Z like we have
   // defined objects.
   if (mIsCamera) mTempVec.inverse();
   mOrientation.lookAt(mTempVec, upAxis);
   mLookAtValid = true;
   markModelMatrixDirty();
   return this;
 }