80 lines
3.2 KiB
C#
80 lines
3.2 KiB
C#
|
using UnityEngine;
|
||
|
|
using UnityEditor;
|
||
|
|
using UnityEngine.Rendering.Universal;
|
||
|
|
|
||
|
|
public partial class FullScreenPassRendererFeature : ISerializationCallbackReceiver
|
||
|
|
{
|
||
|
|
private enum Version
|
||
|
|
{
|
||
|
|
// * Uninitialised is a special last entry that will only ever be set on newly created objects or objects
|
||
|
|
// which were previously serialised with no Version member at all.
|
||
|
|
// * We distinguish between new objects and the unversioned objects based on if we first see this value during
|
||
|
|
// serialization or during deserialization respectively.
|
||
|
|
Uninitialised = -1,
|
||
|
|
|
||
|
|
Initial,
|
||
|
|
AddFetchColorBufferCheckbox,
|
||
|
|
|
||
|
|
// These two entries should remain at the end of the enum and new version should be added before Count
|
||
|
|
Count,
|
||
|
|
Latest = Count - 1,
|
||
|
|
}
|
||
|
|
|
||
|
|
[SerializeField]
|
||
|
|
[HideInInspector]
|
||
|
|
private Version m_Version = Version.Uninitialised;
|
||
|
|
|
||
|
|
private void UpgradeIfNeeded()
|
||
|
|
{
|
||
|
|
// As we rely on serialization/deserialization order to initialize the version as player might have restricions
|
||
|
|
// on when and if serialization is done skipping any upgrading at runtime to avoid accidentally doing the
|
||
|
|
// upgrade on the latest version. Upgrading at runtime does not really have much utility as it would mean
|
||
|
|
// that the asset would need to have been produced in an editor which is an earlier build version than the player
|
||
|
|
#if UNITY_EDITOR
|
||
|
|
if (m_Version == Version.Latest)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if(m_Version == Version.Initial)
|
||
|
|
{
|
||
|
|
// * Previously the ScriptableRenderPassInput.Color requirement was repurposed to mean "copy the active
|
||
|
|
// color target" even though it is typically used to request '_CameraOpaqueTexture' and the copy color pass.
|
||
|
|
// * From now on, the "Fetch Color Buffer" choice will be a separate checkbox to remove the inconsistent
|
||
|
|
// meaning and to allow using the '_CameraOpaqueTexture' if one wants to as well.
|
||
|
|
fetchColorBuffer = requirements.HasFlag(ScriptableRenderPassInput.Color);
|
||
|
|
|
||
|
|
// As the Color flag was being masked out during actual rendering we can safely disable it.
|
||
|
|
requirements &= ~ScriptableRenderPassInput.Color;
|
||
|
|
|
||
|
|
m_Version++;
|
||
|
|
}
|
||
|
|
// Put the next upgrader in an "if" here (not "else if" as they migh all need to run)
|
||
|
|
|
||
|
|
// Making sure SetDirty is called once after deserialization
|
||
|
|
EditorApplication.delayCall += () =>
|
||
|
|
{
|
||
|
|
if (this)
|
||
|
|
EditorUtility.SetDirty(this);
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <inheritdoc/>
|
||
|
|
void ISerializationCallbackReceiver.OnBeforeSerialize()
|
||
|
|
{
|
||
|
|
// This should only ever be true the first time we're serializing a newly created object
|
||
|
|
if (m_Version == Version.Uninitialised)
|
||
|
|
m_Version = Version.Latest;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <inheritdoc/>
|
||
|
|
void ISerializationCallbackReceiver.OnAfterDeserialize()
|
||
|
|
{
|
||
|
|
// The 'Uninitialised' version is expected to only occur during deserialization for objects that were previously
|
||
|
|
// serialized before we added the m_Version field
|
||
|
|
if (m_Version == Version.Uninitialised)
|
||
|
|
m_Version = Version.Initial;
|
||
|
|
|
||
|
|
UpgradeIfNeeded();
|
||
|
|
}
|
||
|
|
}
|