<-------------left eye------------->| |<-----------right eye-------------->
<------------------------------------screenSizeInMeters.Width----------------------------------->
<------interpupillaryDistanceInMeters------>
<--centerFromLeftInMeters->
^
center of pupil
*
*
* @param screenWidthInMeters
* @param interpupillaryDistanceInMeters
*/
public static float[] getHorizPupilCenterFromLeft(final float screenWidthInMeters, final float interpupillaryDistanceInMeters) {
final float visibleWidthOfOneEye = 0.5f * screenWidthInMeters;
final float leftPupilCenterFromLeftInMeters = ( screenWidthInMeters - interpupillaryDistanceInMeters ) * 0.5f;
final float rightPupilCenterFromMiddleInMeters = leftPupilCenterFromLeftInMeters + interpupillaryDistanceInMeters - visibleWidthOfOneEye;
return new float[] { leftPupilCenterFromLeftInMeters / visibleWidthOfOneEye,
rightPupilCenterFromMiddleInMeters / visibleWidthOfOneEye };
}
/** See {@link StereoDeviceRenderer#getDistortionBits()}. */
public static boolean usesBarrelDistortion(final int distortionBits) { return 0 != ( distortionBits & StereoDeviceRenderer.DISTORTION_BARREL ) ; }
/** See {@link StereoDeviceRenderer#getDistortionBits()}. */
public static boolean usesTimewarpDistortion(final int distortionBits) { return 0 != ( distortionBits & StereoDeviceRenderer.DISTORTION_TIMEWARP ) ; }
/** See {@link StereoDeviceRenderer#getDistortionBits()}. */
public static boolean usesChromaticDistortion(final int distortionBits) { return 0 != ( distortionBits & StereoDeviceRenderer.DISTORTION_CHROMATIC ) ; }
/** See {@link StereoDeviceRenderer#getDistortionBits()}. */
public static boolean usesVignetteDistortion(final int distortionBits) { return 0 != ( distortionBits & StereoDeviceRenderer.DISTORTION_VIGNETTE ) ; }
/** See {@link StereoDeviceRenderer#getDistortionBits()}. */
public static String distortionBitsToString(final int distortionBits) {
boolean appendComma = false;
final StringBuilder sb = new StringBuilder();
if( usesBarrelDistortion(distortionBits) ) {
if( appendComma ) { sb.append(", "); };
sb.append("barrel"); appendComma=true;
}
if( usesVignetteDistortion(distortionBits) ) {
if( appendComma ) { sb.append(", "); };
sb.append("vignette"); appendComma=true;
}
if( usesChromaticDistortion(distortionBits) ) {
if( appendComma ) { sb.append(", "); };
sb.append("chroma"); appendComma=true;
}
if( usesTimewarpDistortion(distortionBits) ) {
if( appendComma ) { sb.append(", "); };
sb.append("timewarp"); appendComma=true;
}
return sb.toString();
}
/** See {@link StereoDevice#getSupportedSensorBits()} and {@link StereoDevice#getEnabledSensorBits()}. */
public static boolean usesOrientationSensor(final int sensorBits) { return 0 != ( sensorBits & StereoDevice.SENSOR_ORIENTATION ) ; }
/** See {@link StereoDevice#getSupportedSensorBits()} and {@link StereoDevice#getEnabledSensorBits()}. */
public static boolean usesYawCorrectionSensor(final int sensorBits) { return 0 != ( sensorBits & StereoDevice.SENSOR_YAW_CORRECTION ) ; }
/** See {@link StereoDevice#getSupportedSensorBits()} and {@link StereoDevice#getEnabledSensorBits()}. */
public static boolean usesPositionSensor(final int sensorBits) { return 0 != ( sensorBits & StereoDevice.SENSOR_POSITION ) ; }
/** See {@link StereoDevice#getSupportedSensorBits()} and {@link StereoDevice#getEnabledSensorBits()}. */
public static String sensorBitsToString(final int sensorBits) {
boolean appendComma = false;
final StringBuilder sb = new StringBuilder();
if( usesOrientationSensor(sensorBits) ) {
if( appendComma ) { sb.append(", "); };
sb.append("orientation"); appendComma=true;
}
if( usesYawCorrectionSensor(sensorBits) ) {
if( appendComma ) { sb.append(", "); };
sb.append("yaw-corr"); appendComma=true;
}
if( usesPositionSensor(sensorBits) ) {
if( appendComma ) { sb.append(", "); };
sb.append("position"); appendComma=true;
}
return sb.toString();
}
/**
* Calculates the Side By Side, SBS, projection- and modelview matrix for one eye.
* * {@link #updateViewerPose(int)} must be called upfront. *
** This method merely exist as an example implementation to compute the matrices, * which shall be adopted by the * {@link CustomGLEventListener#reshape(com.jogamp.opengl.GLAutoDrawable, int, int, int, int, EyeParameter, ViewerPose) upstream client code}. *
* @param viewerPose * @param eye * @param zNear frustum near value * @param zFar frustum far value * @param mat4Projection float[16] projection matrix result * @param mat4Modelview float[16] modelview matrix result */ public static void getSBSUpstreamPMV(final ViewerPose viewerPose, final Eye eye, final float zNear, final float zFar, final float[] mat4Projection, final float[] mat4Modelview) { final float[] mat4Tmp1 = new float[16]; final float[] mat4Tmp2 = new float[16]; final float[] vec3Tmp1 = new float[3]; final float[] vec3Tmp2 = new float[3]; final float[] vec3Tmp3 = new float[3]; final EyeParameter eyeParam = eye.getEyeParameter(); // // Projection // FloatUtil.makePerspective(mat4Projection, 0, true, eyeParam.fovhv, zNear, zFar); // // Modelview // final Quaternion rollPitchYaw = new Quaternion(); // private final float eyeYaw = FloatUtil.PI; // 180 degrees in radians // rollPitchYaw.rotateByAngleY(eyeYaw); final float[] shiftedEyePos = rollPitchYaw.rotateVector(vec3Tmp1, 0, viewerPose.position, 0); VectorUtil.addVec3(shiftedEyePos, shiftedEyePos, eyeParam.positionOffset); rollPitchYaw.mult(viewerPose.orientation); final float[] up = rollPitchYaw.rotateVector(vec3Tmp2, 0, VectorUtil.VEC3_UNIT_Y, 0); final float[] forward = rollPitchYaw.rotateVector(vec3Tmp3, 0, VectorUtil.VEC3_UNIT_Z_NEG, 0); final float[] center = VectorUtil.addVec3(forward, shiftedEyePos, forward); final float[] mLookAt = FloatUtil.makeLookAt(mat4Tmp2, 0, shiftedEyePos, 0, center, 0, up, 0, mat4Tmp1); final float[] mViewAdjust = FloatUtil.makeTranslation(mat4Modelview, true, eyeParam.distNoseToPupilX, eyeParam.distMiddleToPupilY, eyeParam.eyeReliefZ); /* mat4Modelview = */ FloatUtil.multMatrix(mViewAdjust, mLookAt); } }