92 lines
3.4 KiB
C#
92 lines
3.4 KiB
C#
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using System;
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using System.Collections.Generic;
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namespace UnityEngine.Rendering
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{
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/// <summary>
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/// Holds the state of a Volume blending update. A global stack is
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/// available by default in <see cref="VolumeManager"/> but you can also create your own using
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/// <see cref="VolumeManager.CreateStack"/> if you need to update the manager with specific
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/// settings and store the results for later use.
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/// </summary>
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public sealed class VolumeStack : IDisposable
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{
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// Holds the state of _all_ component types you can possibly add on volumes
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internal readonly Dictionary<Type, VolumeComponent> components = new();
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// Holds the default value for every volume parameter for faster per-frame stack reset.
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internal (VolumeParameter parameter, VolumeParameter defaultValue)[] defaultParameters;
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internal bool requiresReset = true;
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internal VolumeStack()
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{
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}
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internal void Reload(List<VolumeComponent> componentDefaultStates)
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{
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components.Clear();
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requiresReset = true;
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List<(VolumeParameter parameter, VolumeParameter defaultValue)> defaultParametersList = new();
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foreach (var defaultVolumeComponent in componentDefaultStates)
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{
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var type = defaultVolumeComponent.GetType();
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var component = (VolumeComponent)ScriptableObject.CreateInstance(type);
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components.Add(type, component);
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int count = component.parameters.Count;
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for (int i = 0; i < count; i++)
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{
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defaultParametersList.Add(new()
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{
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parameter = component.parameters[i],
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defaultValue = defaultVolumeComponent.parameters[i]
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});
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}
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}
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defaultParameters = defaultParametersList.ToArray();
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}
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/// <summary>
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/// Gets the current state of the <see cref="VolumeComponent"/> of type <typeparamref name="T"/>
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/// in the stack.
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/// </summary>
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/// <typeparam name="T">A type of <see cref="VolumeComponent"/>.</typeparam>
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/// <returns>The current state of the <see cref="VolumeComponent"/> of type <typeparamref name="T"/>
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/// in the stack.</returns>
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public T GetComponent<T>()
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where T : VolumeComponent
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{
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var comp = GetComponent(typeof(T));
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return (T)comp;
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}
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/// <summary>
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/// Gets the current state of the <see cref="VolumeComponent"/> of the specified type in the
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/// stack.
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/// </summary>
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/// <param name="type">The type of <see cref="VolumeComponent"/> to look for.</param>
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/// <returns>The current state of the <see cref="VolumeComponent"/> of the specified type,
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/// or <c>null</c> if the type is invalid.</returns>
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public VolumeComponent GetComponent(Type type)
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{
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components.TryGetValue(type, out var comp);
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return comp;
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}
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/// <summary>
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/// Cleans up the content of this stack. Once a <c>VolumeStack</c> is disposed, it souldn't
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/// be used anymore.
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/// </summary>
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public void Dispose()
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{
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foreach (var component in components)
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CoreUtils.Destroy(component.Value);
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components.Clear();
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}
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}
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}
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