/// <summary>
/// Gets the rotation matrix for this object.
/// </summary>
public Matrix4x4 GetRotationMatrix()
{
switch (m_transformationType)
{
case SpacialTransformationType.ScalingTranslationEulerAngles:
case SpacialTransformationType.TranslationEulerAngles:
return(Matrix4x4.CreateFromYawPitchRoll(m_rotation.Y, m_rotation.X, m_rotation.Z));
case SpacialTransformationType.ScalingTranslationQuaternion:
case SpacialTransformationType.TranslationQuaternion:
return(Matrix4x4.CreateFromQuaternion(m_rotationQuaternion));
case SpacialTransformationType.ScalingTranslationDirection:
case SpacialTransformationType.TranslationDirection:
return(Matrix4x4Ex.CreateRotationDirection(m_rotationUp, m_rotationForward));
case SpacialTransformationType.Translation:
case SpacialTransformationType.None:
case SpacialTransformationType.CustomTransform:
return(Matrix4x4.Identity);
case SpacialTransformationType.TakeFromOtherObject:
if (m_transformSourceObject != null)
{
return(m_transformSourceObject.GetRotationMatrix());
}
else
{
return(Matrix4x4.Identity);
}
default:
throw new SeeingSharpGraphicsException("Unknown transformation type: " + m_transformationType);
}
}
/// <summary>
/// Updates the object.
/// </summary>
/// <param name="updateState">Current update state.</param>
protected override void UpdateInternal(SceneRelatedUpdateState updateState)
{
//Calculates local transform matrix (transforms local space to world space)
bool doRecreateShaderParameters = false;
base.TransormationChanged =
m_transformParamsChanged || updateState.ForceTransformUpdatesOnChilds;
// Update local transform matrix if transform values have changed
if (m_transformParamsChanged || updateState.ForceTransformUpdatesOnChilds)
{
m_transformParamsChanged = false;
m_forceTransformUpdateOnChilds = this.HasChilds;
doRecreateShaderParameters = true;
// Calculate new transformation matrix
switch (m_transformationType)
{
case SpacialTransformationType.ScalingTranslationEulerAngles:
m_transform =
Matrix4x4.CreateScale(m_scaling) *
Matrix4x4.CreateFromYawPitchRoll(m_rotation.Y, m_rotation.X, m_rotation.Z) *
Matrix4x4.CreateTranslation(m_position) *
updateState.World.Top;
break;
case SpacialTransformationType.ScalingTranslationQuaternion:
m_transform =
Matrix4x4.CreateScale(m_scaling) *
Matrix4x4.CreateFromQuaternion(m_rotationQuaternion) *
Matrix4x4.CreateTranslation(m_position) *
updateState.World.Top;
break;
case SpacialTransformationType.ScalingTranslationDirection:
m_transform =
Matrix4x4.CreateScale(m_scaling) *
Matrix4x4Ex.CreateRotationDirection(m_rotationUp, m_rotationForward) *
Matrix4x4.CreateTranslation(m_position) *
updateState.World.Top;
break;
case SpacialTransformationType.ScalingTranslation:
m_transform =
Matrix4x4.CreateScale(m_scaling) *
Matrix4x4.CreateTranslation(m_position) *
updateState.World.Top;
break;
case SpacialTransformationType.TranslationEulerAngles:
m_transform =
Matrix4x4.CreateFromYawPitchRoll(m_rotation.Y, m_rotation.X, m_rotation.Z) *
Matrix4x4.CreateTranslation(m_position) *
updateState.World.Top;
break;
case SpacialTransformationType.TranslationQuaternion:
m_transform =
Matrix4x4.CreateFromQuaternion(m_rotationQuaternion) *
Matrix4x4.CreateTranslation(m_position) *
updateState.World.Top;
break;
case SpacialTransformationType.TranslationDirection:
m_transform =
Matrix4x4Ex.CreateRotationDirection(m_rotationUp, m_rotationForward) *
Matrix4x4.CreateTranslation(m_position) *
updateState.World.Top;
break;
case SpacialTransformationType.Translation:
m_transform =
Matrix4x4.CreateTranslation(m_position) *
updateState.World.Top;
break;
case SpacialTransformationType.CustomTransform:
m_transform =
m_customTransform *
updateState.World.Top;
break;
case SpacialTransformationType.TakeFromOtherObject:
if (m_transformSourceObject != null)
{
m_transform = m_transformSourceObject.m_transform;
}
else
{
m_transform = updateState.World.Top;
}
break;
case SpacialTransformationType.None:
m_transform = updateState.World.Top;
break;
}
}
// Trigger recreation of shader parameters
if (doRecreateShaderParameters)
{
TriggerRecreateOfParameters();
}
}