/// <summary>
/// Adjust the rigOrientation to put the camera within the screen bounds.
/// If deltaTime >= 0 then damping will be applied.
/// Assumes that currentOrientation fwd is such that input rigOrientation's
/// local up is NEVER NEVER NEVER pointing downwards, relative to
/// state.ReferenceUp. If this condition is violated
/// then you will see crazy spinning. That's the symptom.
/// </summary>
private bool RotateToScreenBounds(
ref CameraState state, Rect screenRect,
ref Quaternion rigOrientation, float fov, float fovH, float deltaTime)
{
Vector3 targetDir = TrackedPoint - state.CorrectedPosition;
Vector2 rotToRect = rigOrientation.GetCameraRotationToTarget(targetDir, state.ReferenceUp);
// Bring it to the edge of screenRect, if outside. Leave it alone if inside.
ClampVerticalBounds(ref screenRect, targetDir, state.ReferenceUp, fov);
float min = (screenRect.yMin - 0.5f) * fov;
float max = (screenRect.yMax - 0.5f) * fov;
if (rotToRect.x < min)
{
rotToRect.x -= min;
}
else if (rotToRect.x > max)
{
rotToRect.x -= max;
}
else
{
rotToRect.x = 0;
}
min = (screenRect.xMin - 0.5f) * fovH;
max = (screenRect.xMax - 0.5f) * fovH;
if (rotToRect.y < min)
{
rotToRect.y -= min;
}
else if (rotToRect.y > max)
{
rotToRect.y -= max;
}
else
{
rotToRect.y = 0;
}
// Apply damping
if (deltaTime >= 0)
{
rotToRect.x = Damper.Damp(rotToRect.x, m_VerticalDamping, deltaTime);
rotToRect.y = Damper.Damp(rotToRect.y, m_HorizontalDamping, deltaTime);
}
// Rotate
rigOrientation = rigOrientation.ApplyCameraRotation(rotToRect, state.ReferenceUp);
#if false
// GML this gives false positives when the camera is moving.
// The way to address this would be to grow the hard rect by the amount
// that it would be damped
return(Mathf.Abs(rotToRect.x) > Epsilon || Mathf.Abs(rotToRect.y) > Epsilon);
#else
return(false);
#endif
}
/// <summary>
/// Adjust the rigOrientation to put the camera within the screen bounds.
/// If deltaTime >= 0 then damping will be applied.
/// Assumes that currentOrientation fwd is such that input rigOrientation's
/// local up is NEVER NEVER NEVER pointing downwards, relative to
/// state.ReferenceUp. If this condition is violated
/// then you will see crazy spinning. That's the symptom.
/// </summary>
private Quaternion RotateToScreenBounds(
ref CameraState state, Rect screenRect,
Quaternion rigOrientation, float fov, float fovH, float deltaTime)
{
Vector3 targetDir = state.ReferenceLookAt - state.CorrectedPosition;
Vector2 rotToRect = rigOrientation.GetCameraRotationToTarget(targetDir, state.ReferenceUp);
// Bring it to the edge of screenRect, if outside. Leave it alone if inside.
ClampVerticalBounds(ref screenRect, targetDir, state.ReferenceUp, fov);
float min = (screenRect.yMin - 0.5f) * fov;
float max = (screenRect.yMax - 0.5f) * fov;
if (rotToRect.x < min)
{
rotToRect.x -= min;
}
else if (rotToRect.x > max)
{
rotToRect.x -= max;
}
else
{
rotToRect.x = 0;
}
min = (screenRect.xMin - 0.5f) * fovH;
max = (screenRect.xMax - 0.5f) * fovH;
if (rotToRect.y < min)
{
rotToRect.y -= min;
}
else if (rotToRect.y > max)
{
rotToRect.y -= max;
}
else
{
rotToRect.y = 0;
}
// Apply damping
if (deltaTime > 0)
{
if (Mathf.Abs(rotToRect.x) > UnityVectorExtensions.Epsilon)
{
rotToRect.x *= deltaTime / Mathf.Max(m_VerticalDamping * kDampingScale, deltaTime);
}
if (Mathf.Abs(rotToRect.y) > UnityVectorExtensions.Epsilon)
{
rotToRect.y *= deltaTime / Mathf.Max(m_HorizontalDamping * kDampingScale, deltaTime);
}
}
// Rotate
return(rigOrientation.ApplyCameraRotation(rotToRect, state.ReferenceUp));
}
/// <summary>
/// Adjust the rigOrientation to put the camera within the screen bounds.
/// If deltaTime >= 0 then damping will be applied.
/// Assumes that currentOrientation fwd is such that input rigOrientation's
/// local up is NEVER NEVER NEVER pointing downwards, relative to
/// state.ReferenceUp. If this condition is violated
/// then you will see crazy spinning. That's the symptom.
/// </summary>
private void RotateToScreenBounds(
ref CameraState state, Rect screenRect, Vector3 trackedPoint,
ref Quaternion rigOrientation, float fov, float fovH, float deltaTime)
{
Vector3 targetDir = trackedPoint - state.CorrectedPosition;
Vector2 rotToRect = rigOrientation.GetCameraRotationToTarget(targetDir, state.ReferenceUp);
// Bring it to the edge of screenRect, if outside. Leave it alone if inside.
ClampVerticalBounds(ref screenRect, targetDir, state.ReferenceUp, fov);
float min = (screenRect.yMin - 0.5f) * fov;
float max = (screenRect.yMax - 0.5f) * fov;
if (rotToRect.x < min)
{
rotToRect.x -= min;
}
else if (rotToRect.x > max)
{
rotToRect.x -= max;
}
else
{
rotToRect.x = 0;
}
min = (screenRect.xMin - 0.5f) * fovH;
max = (screenRect.xMax - 0.5f) * fovH;
if (rotToRect.y < min)
{
rotToRect.y -= min;
}
else if (rotToRect.y > max)
{
rotToRect.y -= max;
}
else
{
rotToRect.y = 0;
}
// Apply damping
if (deltaTime >= 0 && VirtualCamera.PreviousStateIsValid)
{
rotToRect.x = VirtualCamera.DetachedLookAtTargetDamp(
rotToRect.x, m_VerticalDamping, deltaTime);
rotToRect.y = VirtualCamera.DetachedLookAtTargetDamp(
rotToRect.y, m_HorizontalDamping, deltaTime);
}
// Rotate
rigOrientation = rigOrientation.ApplyCameraRotation(rotToRect, state.ReferenceUp);
}
/// <summary>
/// Adjust the rigOrientation to put the camera within the screen bounds.
/// If deltaTime >= 0 then damping will be applied.
/// Assumes that currentOrientation fwd is such that input rigOrientation's
/// local up is NEVER NEVER NEVER pointing downwards, relative to
/// state.ReferenceUp. If this condition is violated
/// then you will see crazy spinning. That's the symptom.
/// </summary>
private Quaternion PlaceWithinScreenBounds(
ref CameraState state, Rect screenRect,
Quaternion rigOrientation, float fovH, float deltaTime)
{
Vector3 targetDir = state.ReferenceLookAt - state.CorrectedPosition;
Vector2 rotToRect = rigOrientation.GetCameraRotationToTarget(targetDir, state.ReferenceUp);
// Bring it to the edge of screenRect, if outside. Leave it alone if inside.
ClampVerticalBounds(ref screenRect, targetDir, state.ReferenceUp, state.Lens.FieldOfView);
float min = (screenRect.yMin - 0.5f) * state.Lens.FieldOfView;
float max = (screenRect.yMax - 0.5f) * state.Lens.FieldOfView;
if (rotToRect.x < min)
{
rotToRect.x -= min;
}
else if (rotToRect.x > max)
{
rotToRect.x -= max;
}
else
{
rotToRect.x = 0;
}
min = (screenRect.xMin - 0.5f) * fovH;
max = (screenRect.xMax - 0.5f) * fovH;
if (rotToRect.y < min)
{
rotToRect.y -= min;
}
else if (rotToRect.y > max)
{
rotToRect.y -= max;
}
else
{
rotToRect.y = 0;
}
// Apply damping
if (deltaTime > 0)
{
rotToRect.x *= deltaTime / Mathf.Max(VerticalSoftTrackingSpeed, deltaTime);
rotToRect.y *= deltaTime / Mathf.Max(HorizontalSoftTrackingSpeed, deltaTime);
}
// Rotate
return(rigOrientation.ApplyCameraRotation(rotToRect, state.ReferenceUp));
}
private bool RotateToScreenBounds(ref CameraState state, Rect screenRect, ref Quaternion rigOrientation, float fov, float fovH, float deltaTime)
{
Vector3 vector = this.TrackedPoint - state.CorrectedPosition;
Vector2 cameraRotationToTarget = rigOrientation.GetCameraRotationToTarget(vector, state.ReferenceUp);
this.ClampVerticalBounds(ref screenRect, vector, state.ReferenceUp, fov);
float num = (screenRect.yMin - 0.5f) * fov;
float num2 = (screenRect.yMax - 0.5f) * fov;
if (cameraRotationToTarget.x < num)
{
cameraRotationToTarget.x -= num;
}
else if (cameraRotationToTarget.x > num2)
{
cameraRotationToTarget.x -= num2;
}
else
{
cameraRotationToTarget.x = 0f;
}
num = (screenRect.xMin - 0.5f) * fovH;
num2 = (screenRect.xMax - 0.5f) * fovH;
if (cameraRotationToTarget.y < num)
{
cameraRotationToTarget.y -= num;
}
else if (cameraRotationToTarget.y > num2)
{
cameraRotationToTarget.y -= num2;
}
else
{
cameraRotationToTarget.y = 0f;
}
if (deltaTime >= 0f)
{
cameraRotationToTarget.x = Damper.Damp(cameraRotationToTarget.x, this.m_VerticalDamping, deltaTime);
cameraRotationToTarget.y = Damper.Damp(cameraRotationToTarget.y, this.m_HorizontalDamping, deltaTime);
}
rigOrientation = rigOrientation.ApplyCameraRotation(cameraRotationToTarget, state.ReferenceUp);
return(false);
}
/// <summary>Intelligently blend the contents of two states.</summary>
/// <param name="stateA">The first state, corresponding to t=0</param>
/// <param name="stateB">The second state, corresponding to t=1</param>
/// <param name="t">How much to interpolate. Internally clamped to 0..1</param>
/// <returns>Linearly interpolated CameraState</returns>
public static CameraState Lerp(CameraState stateA, CameraState stateB, float t)
{
t = Mathf.Clamp01(t);
float adjustedT = t;
CameraState state = new CameraState();
// Combine the blend hints intelligently
if (((stateA.BlendHint & stateB.BlendHint) & BlendHintValue.NoPosition) != 0)
{
state.BlendHint |= BlendHintValue.NoPosition;
}
if (((stateA.BlendHint & stateB.BlendHint) & BlendHintValue.NoOrientation) != 0)
{
state.BlendHint |= BlendHintValue.NoOrientation;
}
if (((stateA.BlendHint & stateB.BlendHint) & BlendHintValue.NoLens) != 0)
{
state.BlendHint |= BlendHintValue.NoLens;
}
if (((stateA.BlendHint | stateB.BlendHint) & BlendHintValue.SphericalPositionBlend) != 0)
{
state.BlendHint |= BlendHintValue.SphericalPositionBlend;
}
if (((stateA.BlendHint | stateB.BlendHint) & BlendHintValue.CylindricalPositionBlend) != 0)
{
state.BlendHint |= BlendHintValue.CylindricalPositionBlend;
}
if (((stateA.BlendHint | stateB.BlendHint) & BlendHintValue.NoLens) == 0)
{
state.Lens = LensSettings.Lerp(stateA.Lens, stateB.Lens, t);
}
else if (((stateA.BlendHint & stateB.BlendHint) & BlendHintValue.NoLens) == 0)
{
if ((stateA.BlendHint & BlendHintValue.NoLens) != 0)
{
state.Lens = stateB.Lens;
}
else
{
state.Lens = stateA.Lens;
}
}
state.ReferenceUp = Vector3.Slerp(stateA.ReferenceUp, stateB.ReferenceUp, t);
state.ShotQuality = Mathf.Lerp(stateA.ShotQuality, stateB.ShotQuality, t);
state.PositionCorrection = ApplyPosBlendHint(
stateA.PositionCorrection, stateA.BlendHint,
stateB.PositionCorrection, stateB.BlendHint,
state.PositionCorrection,
Vector3.Lerp(stateA.PositionCorrection, stateB.PositionCorrection, t));
state.OrientationCorrection = ApplyRotBlendHint(
stateA.OrientationCorrection, stateA.BlendHint,
stateB.OrientationCorrection, stateB.BlendHint,
state.OrientationCorrection,
Quaternion.Slerp(stateA.OrientationCorrection, stateB.OrientationCorrection, t));
// LookAt target
if (!stateA.HasLookAt || !stateB.HasLookAt)
{
state.ReferenceLookAt = kNoPoint;
}
else
{
// Re-interpolate FOV to preserve target composition, if possible
float fovA = stateA.Lens.FieldOfView;
float fovB = stateB.Lens.FieldOfView;
if (((stateA.BlendHint | stateB.BlendHint) & BlendHintValue.NoLens) == 0 &&
!state.Lens.Orthographic && !Mathf.Approximately(fovA, fovB))
{
LensSettings lens = state.Lens;
lens.FieldOfView = InterpolateFOV(
fovA, fovB,
Mathf.Max((stateA.ReferenceLookAt - stateA.CorrectedPosition).magnitude, stateA.Lens.NearClipPlane),
Mathf.Max((stateB.ReferenceLookAt - stateB.CorrectedPosition).magnitude, stateB.Lens.NearClipPlane), t);
state.Lens = lens;
// Make sure we preserve the screen composition through FOV changes
adjustedT = Mathf.Abs((lens.FieldOfView - fovA) / (fovB - fovA));
}
// Linear interpolation of lookAt target point
state.ReferenceLookAt = Vector3.Lerp(
stateA.ReferenceLookAt, stateB.ReferenceLookAt, adjustedT);
}
// Raw position
state.RawPosition = ApplyPosBlendHint(
stateA.RawPosition, stateA.BlendHint,
stateB.RawPosition, stateB.BlendHint,
state.RawPosition, state.InterpolatePosition(
stateA.RawPosition, stateA.ReferenceLookAt,
stateB.RawPosition, stateB.ReferenceLookAt,
t));
// Interpolate the LookAt in Screen Space if requested
if (state.HasLookAt &&
((stateA.BlendHint | stateB.BlendHint) & BlendHintValue.RadialAimBlend) != 0)
{
state.ReferenceLookAt = state.RawPosition + Vector3.Slerp(
stateA.ReferenceLookAt - state.RawPosition,
stateB.ReferenceLookAt - state.RawPosition, adjustedT);
}
// Clever orientation interpolation
Quaternion newOrient = state.RawOrientation;
if (((stateA.BlendHint | stateB.BlendHint) & BlendHintValue.NoOrientation) == 0)
{
Vector3 dirTarget = Vector3.zero;
if (state.HasLookAt)//&& ((stateA.BlendHint | stateB.BlendHint) & BlendHintValue.RadialAimBlend) == 0)
{
// If orientations are different, use LookAt to blend them
float angle = Quaternion.Angle(stateA.RawOrientation, stateB.RawOrientation);
if (angle > UnityVectorExtensions.Epsilon)
{
dirTarget = state.ReferenceLookAt - state.CorrectedPosition;
}
}
if (dirTarget.AlmostZero() ||
((stateA.BlendHint | stateB.BlendHint) & BlendHintValue.IgnoreLookAtTarget) != 0)
{
// Don't know what we're looking at - can only slerp
newOrient = UnityQuaternionExtensions.SlerpWithReferenceUp(
stateA.RawOrientation, stateB.RawOrientation, t, state.ReferenceUp);
}
else
{
// Rotate while preserving our lookAt target
dirTarget = dirTarget.normalized;
if ((dirTarget - state.ReferenceUp).AlmostZero() ||
(dirTarget + state.ReferenceUp).AlmostZero())
{
// Looking up or down at the pole
newOrient = UnityQuaternionExtensions.SlerpWithReferenceUp(
stateA.RawOrientation, stateB.RawOrientation, t, state.ReferenceUp);
}
else
{
// Put the target in the center
newOrient = Quaternion.LookRotation(dirTarget, state.ReferenceUp);
// Blend the desired offsets from center
Vector2 deltaA = -stateA.RawOrientation.GetCameraRotationToTarget(
stateA.ReferenceLookAt - stateA.CorrectedPosition, stateA.ReferenceUp);
Vector2 deltaB = -stateB.RawOrientation.GetCameraRotationToTarget(
stateB.ReferenceLookAt - stateB.CorrectedPosition, stateB.ReferenceUp);
newOrient = newOrient.ApplyCameraRotation(
Vector2.Lerp(deltaA, deltaB, adjustedT), state.ReferenceUp);
}
}
}
state.RawOrientation = ApplyRotBlendHint(
stateA.RawOrientation, stateA.BlendHint,
stateB.RawOrientation, stateB.BlendHint,
state.RawOrientation, newOrient);
// Accumulate the custom blendables and apply the weights
for (int i = 0; i < stateA.NumCustomBlendables; ++i)
{
CustomBlendable b = stateA.GetCustomBlendable(i);
b.m_Weight *= (1 - t);
if (b.m_Weight > UnityVectorExtensions.Epsilon)
{
state.AddCustomBlendable(b);
}
}
for (int i = 0; i < stateB.NumCustomBlendables; ++i)
{
CustomBlendable b = stateB.GetCustomBlendable(i);
b.m_Weight *= t;
if (b.m_Weight > UnityVectorExtensions.Epsilon)
{
state.AddCustomBlendable(b);
}
}
return(state);
}
/// <summary>Applies the composer rules and orients the camera accordingly</summary>
/// <param name="curState">The current camera state</param>
/// <param name="deltaTime">Used for calculating damping. If less than
/// zero, then target will snap to the center of the dead zone.</param>
public override void MutateCameraState(ref CameraState curState, float deltaTime)
{
if (!IsValid || !curState.HasLookAt)
{
return;
}
// Correct the tracked point in the event that it's behind the camera
// while the real target is in front
if (!(TrackedPoint - curState.ReferenceLookAt).AlmostZero())
{
Vector3 mid = Vector3.Lerp(curState.CorrectedPosition, curState.ReferenceLookAt, 0.5f);
Vector3 toLookAt = curState.ReferenceLookAt - mid;
Vector3 toTracked = TrackedPoint - mid;
if (Vector3.Dot(toLookAt, toTracked) < 0)
{
float t = Vector3.Distance(curState.ReferenceLookAt, mid)
/ Vector3.Distance(curState.ReferenceLookAt, TrackedPoint);
TrackedPoint = Vector3.Lerp(curState.ReferenceLookAt, TrackedPoint, t);
}
}
float targetDistance = (TrackedPoint - curState.CorrectedPosition).magnitude;
if (targetDistance < Epsilon)
{
if (deltaTime >= 0 && VirtualCamera.PreviousStateIsValid)
{
curState.RawOrientation = m_CameraOrientationPrevFrame;
}
return; // navel-gazing, get outa here
}
// Expensive FOV calculations
mCache.UpdateCache(curState.Lens, SoftGuideRect, HardGuideRect, targetDistance);
Quaternion rigOrientation = curState.RawOrientation;
if (deltaTime < 0 || !VirtualCamera.PreviousStateIsValid)
{
// No damping, just snap to central bounds, skipping the soft zone
rigOrientation = Quaternion.LookRotation(
rigOrientation * Vector3.forward, curState.ReferenceUp);
Rect rect = mCache.mFovSoftGuideRect;
if (m_CenterOnActivate)
{
rect = new Rect(rect.center, Vector2.zero); // Force to center
}
RotateToScreenBounds(
ref curState, rect, curState.ReferenceLookAt,
ref rigOrientation, mCache.mFov, mCache.mFovH, -1);
}
else
{
// Start with previous frame's orientation (but with current up)
Vector3 dir = m_LookAtPrevFrame - m_CameraPosPrevFrame;
if (dir.AlmostZero())
{
rigOrientation = Quaternion.LookRotation(
m_CameraOrientationPrevFrame * Vector3.forward, curState.ReferenceUp);
}
else
{
dir = Quaternion.Euler(curState.PositionDampingBypass) * dir;
rigOrientation = Quaternion.LookRotation(dir, curState.ReferenceUp);
rigOrientation = rigOrientation.ApplyCameraRotation(
-m_ScreenOffsetPrevFrame, curState.ReferenceUp);
}
// Move target through the soft zone, with damping
RotateToScreenBounds(
ref curState, mCache.mFovSoftGuideRect, TrackedPoint,
ref rigOrientation, mCache.mFov, mCache.mFovH, deltaTime);
// Force the actual target (not the lookahead one) into the hard bounds, no damping
if (deltaTime < 0 || VirtualCamera.LookAtTargetAttachment > 1 - Epsilon)
{
RotateToScreenBounds(
ref curState, mCache.mFovHardGuideRect, curState.ReferenceLookAt,
ref rigOrientation, mCache.mFov, mCache.mFovH, -1);
}
}
m_CameraPosPrevFrame = curState.CorrectedPosition;
m_LookAtPrevFrame = TrackedPoint;
m_CameraOrientationPrevFrame = UnityQuaternionExtensions.Normalized(rigOrientation);
m_ScreenOffsetPrevFrame = m_CameraOrientationPrevFrame.GetCameraRotationToTarget(
m_LookAtPrevFrame - curState.CorrectedPosition, curState.ReferenceUp);
curState.RawOrientation = m_CameraOrientationPrevFrame;
}
/// <summary>Applies the composer rules and orients the camera accordingly</summary>
/// <param name="curState">The current camera state</param>
/// <param name="deltaTime">Used for calculating damping. If less than
/// zero, then target will snap to the center of the dead zone.</param>
public override void MutateCameraState(ref CameraState curState, float deltaTime)
{
// Initialize the state for previous frame if appropriate
if (deltaTime < 0)
{
m_Predictor.Reset();
}
if (!IsValid || !curState.HasLookAt)
{
return;
}
float targetDistance = (TrackedPoint - curState.CorrectedPosition).magnitude;
if (targetDistance < Epsilon)
{
if (deltaTime >= 0)
{
curState.RawOrientation = m_CameraOrientationPrevFrame;
}
return; // navel-gazing, get outa here
}
float fov, fovH;
if (curState.Lens.Orthographic)
{
// Calculate effective fov - fake it for ortho based on target distance
fov = Mathf.Rad2Deg * 2 * Mathf.Atan(curState.Lens.OrthographicSize / targetDistance);
fovH = Mathf.Rad2Deg * 2 * Mathf.Atan(
curState.Lens.Aspect * curState.Lens.OrthographicSize / targetDistance);
}
else
{
fov = curState.Lens.FieldOfView;
double radHFOV = 2 * Math.Atan(Math.Tan(fov * Mathf.Deg2Rad / 2) * curState.Lens.Aspect);
fovH = (float)(Mathf.Rad2Deg * radHFOV);
}
Quaternion rigOrientation = curState.RawOrientation;
Rect softGuideFOV = ScreenToFOV(SoftGuideRect, fov, fovH, curState.Lens.Aspect);
if (deltaTime < 0)
{
// No damping, just snap to central bounds, skipping the soft zone
Rect rect = new Rect(softGuideFOV.center, Vector2.zero); // Force to center
RotateToScreenBounds(ref curState, rect, ref rigOrientation, fov, fovH, -1);
}
else
{
// Start with previous frame's orientation (but with current up)
Vector3 dir = m_LookAtPrevFrame - (m_CameraPosPrevFrame + curState.PositionDampingBypass);
if (dir.AlmostZero())
{
rigOrientation = Quaternion.LookRotation(
m_CameraOrientationPrevFrame * Vector3.forward, curState.ReferenceUp);
}
else
{
rigOrientation = Quaternion.LookRotation(dir, curState.ReferenceUp);
rigOrientation = rigOrientation.ApplyCameraRotation(
-m_ScreenOffsetPrevFrame, curState.ReferenceUp);
}
// First force the previous rotation into the hard bounds, no damping,
// then Now move it through the soft zone, with damping
Rect hardGuideFOV = ScreenToFOV(HardGuideRect, fov, fovH, curState.Lens.Aspect);
if (!RotateToScreenBounds(ref curState, hardGuideFOV, ref rigOrientation, fov, fovH, -1))
{
RotateToScreenBounds(ref curState, softGuideFOV, ref rigOrientation, fov, fovH, deltaTime);
}
}
m_CameraPosPrevFrame = curState.CorrectedPosition;
m_LookAtPrevFrame = TrackedPoint;
m_CameraOrientationPrevFrame = UnityQuaternionExtensions.Normalized(rigOrientation);
m_ScreenOffsetPrevFrame = m_CameraOrientationPrevFrame.GetCameraRotationToTarget(
m_LookAtPrevFrame - curState.CorrectedPosition, curState.ReferenceUp);
curState.RawOrientation = m_CameraOrientationPrevFrame;
}
public override void MutateCameraState(ref CameraState curState, float deltaTime)
{
if (deltaTime < 0f)
{
this.m_Predictor.Reset();
}
if (!this.IsValid || !curState.HasLookAt)
{
return;
}
float magnitude = (this.TrackedPoint - curState.CorrectedPosition).magnitude;
if (magnitude < 0.0001f)
{
if (deltaTime >= 0f)
{
curState.RawOrientation = this.m_CameraOrientationPrevFrame;
}
return;
}
float num;
float fovH;
if (curState.Lens.Orthographic)
{
num = 114.59156f * Mathf.Atan(curState.Lens.OrthographicSize / magnitude);
fovH = 114.59156f * Mathf.Atan(curState.Lens.Aspect * curState.Lens.OrthographicSize / magnitude);
}
else
{
num = curState.Lens.FieldOfView;
double num2 = 2.0 * Math.Atan(Math.Tan((double)(num * 0.0174532924f / 2f)) * (double)curState.Lens.Aspect);
fovH = (float)(57.295780181884766 * num2);
}
Quaternion quaternion = curState.RawOrientation;
Rect screenRect = this.ScreenToFOV(this.SoftGuideRect, num, fovH, curState.Lens.Aspect);
if (deltaTime < 0f)
{
Rect screenRect2 = new Rect(screenRect.center, Vector2.zero);
this.RotateToScreenBounds(ref curState, screenRect2, ref quaternion, num, fovH, -1f);
}
else
{
Vector3 vector = this.m_LookAtPrevFrame - (this.m_CameraPosPrevFrame + curState.PositionDampingBypass);
if (vector.AlmostZero())
{
quaternion = Quaternion.LookRotation(this.m_CameraOrientationPrevFrame * Vector3.forward, curState.ReferenceUp);
}
else
{
quaternion = Quaternion.LookRotation(vector, curState.ReferenceUp);
quaternion = quaternion.ApplyCameraRotation(-this.m_ScreenOffsetPrevFrame, curState.ReferenceUp);
}
Rect screenRect3 = this.ScreenToFOV(this.HardGuideRect, num, fovH, curState.Lens.Aspect);
if (!this.RotateToScreenBounds(ref curState, screenRect3, ref quaternion, num, fovH, -1f))
{
this.RotateToScreenBounds(ref curState, screenRect, ref quaternion, num, fovH, deltaTime);
}
}
this.m_CameraPosPrevFrame = curState.CorrectedPosition;
this.m_LookAtPrevFrame = this.TrackedPoint;
this.m_CameraOrientationPrevFrame = quaternion.Normalized();
this.m_ScreenOffsetPrevFrame = this.m_CameraOrientationPrevFrame.GetCameraRotationToTarget(this.m_LookAtPrevFrame - curState.CorrectedPosition, curState.ReferenceUp);
curState.RawOrientation = this.m_CameraOrientationPrevFrame;
}
/// <summary>Applies the composer rules and orients the camera accordingly</summary>
/// <param name="curState">The current camera state</param>
/// <param name="deltaTime">Used for calculating damping. If less than
/// zero, then target will snap to the center of the dead zone.</param>
public override void MutateCameraState(ref CameraState curState, float deltaTime)
{
// Initialize the state for previous frame if appropriate
if (deltaTime < 0)
{
m_Predictor.Reset();
}
if (!IsValid || !curState.HasLookAt)
{
return;
}
float targetDistance = (TrackedPoint - curState.CorrectedPosition).magnitude;
if (targetDistance < Epsilon)
{
if (deltaTime >= 0)
{
curState.RawOrientation = m_CameraOrientationPrevFrame;
}
return; // navel-gazing, get outa here
}
// Expensive FOV calculations
mCache.UpdateCache(curState.Lens, SoftGuideRect, HardGuideRect, targetDistance);
Quaternion rigOrientation = curState.RawOrientation;
if (deltaTime < 0)
{
// No damping, just snap to central bounds, skipping the soft zone
Rect rect = mCache.mFovSoftGuideRect;
if (m_CenterOnActivate)
{
rect = new Rect(rect.center, Vector2.zero); // Force to center
}
RotateToScreenBounds(ref curState, rect, ref rigOrientation, mCache.mFov, mCache.mFovH, -1);
}
else
{
// Start with previous frame's orientation (but with current up)
Vector3 dir = m_LookAtPrevFrame - (m_CameraPosPrevFrame + curState.PositionDampingBypass);
if (dir.AlmostZero())
{
rigOrientation = Quaternion.LookRotation(
m_CameraOrientationPrevFrame * Vector3.forward, curState.ReferenceUp);
}
else
{
rigOrientation = Quaternion.LookRotation(dir, curState.ReferenceUp);
rigOrientation = rigOrientation.ApplyCameraRotation(
-m_ScreenOffsetPrevFrame, curState.ReferenceUp);
}
// First force the previous rotation into the hard bounds, no damping,
// then Now move it through the soft zone, with damping
if (!RotateToScreenBounds(ref curState, mCache.mFovHardGuideRect, ref rigOrientation, mCache.mFov, mCache.mFovH, -1))
{
RotateToScreenBounds(ref curState, mCache.mFovSoftGuideRect, ref rigOrientation, mCache.mFov, mCache.mFovH, deltaTime);
}
}
m_CameraPosPrevFrame = curState.CorrectedPosition;
m_LookAtPrevFrame = TrackedPoint;
m_CameraOrientationPrevFrame = UnityQuaternionExtensions.Normalized(rigOrientation);
m_ScreenOffsetPrevFrame = m_CameraOrientationPrevFrame.GetCameraRotationToTarget(
m_LookAtPrevFrame - curState.CorrectedPosition, curState.ReferenceUp);
curState.RawOrientation = m_CameraOrientationPrevFrame;
}
