|
public CompileOutputOperation ( |
||
| finalState | ||
| return | void | |
///<summary>
/// Recursively collect target states (except for final Pass).
///</summary>
///<param name="compiledState">This vector will contain a list of TargetOperation objects</param>
public void CompileTargetOperations(List <CompositorTargetOperation> compiledState)
{
/// Collect targets of previous state
if (previousInstance != null)
{
previousInstance.CompileTargetOperations(compiledState);
}
/// Texture targets
foreach (CompositionTargetPass target in technique.TargetPasses)
{
CompositorTargetOperation ts = new CompositorTargetOperation(GetTargetForTex(target.OutputName));
/// Set "only initial" flag, visibilityMask and lodBias according to CompositionTargetPass.
ts.OnlyInitial = target.OnlyInitial;
ts.VisibilityMask = target.VisibilityMask;
ts.LodBias = target.LodBias;
/// Check for input mode previous
if (target.InputMode == CompositorInputMode.Previous)
{
/// Collect target state for previous compositor
/// The TargetOperation for the final target is collected seperately as it is merged
/// with later operations
previousInstance.CompileOutputOperation(ts);
}
/// Collect passes of our own target
CollectPasses(ts, target);
compiledState.Add(ts);
}
}
///<summary>
/// Compile this Composition chain into a series of RenderTarget operations.
///</summary>
protected void Compile()
{
ClearCompiledState();
bool compositorsEnabled = false;
/// Set previous CompositorInstance for each compositor in the list
CompositorInstance lastComposition = originalScene;
originalScene.PreviousInstance = null;
CompositionPass pass = originalScene.Technique.OutputTarget.GetPass(0);
pass.ClearBuffers = viewport.ClearBuffers;
pass.ClearColor = viewport.BackgroundColor;
foreach (CompositorInstance instance in instances)
{
if (instance.Enabled)
{
compositorsEnabled = true;
instance.PreviousInstance = lastComposition;
lastComposition = instance;
}
}
/// Compile misc targets
lastComposition.CompileTargetOperations(compiledState);
/// Final target viewport (0)
outputOperation.RenderSystemOperations.Clear();
lastComposition.CompileOutputOperation(outputOperation);
// Deal with viewport settings
if (compositorsEnabled != anyCompositorsEnabled)
{
anyCompositorsEnabled = compositorsEnabled;
if (anyCompositorsEnabled)
{
// Save old viewport clearing options
oldClearEveryFrameBuffers = viewport.ClearBuffers;
// Don't clear anything every frame since we have our own clear ops
viewport.SetClearEveryFrame(false);
}
else
{
// Reset clearing options
viewport.SetClearEveryFrame(oldClearEveryFrameBuffers > 0,
oldClearEveryFrameBuffers);
}
}
dirty = false;
}
