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81 行
3.2 KiB

using System;
using System.Diagnostics;
namespace UnityEngine.Experimental.Rendering.HDPipeline
{
// This class is used to associate a unique ID to a sky class.
// This is needed to be able to automatically register sky classes and avoid collisions and refactoring class names causing data compatibility issues.
[AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]
public sealed class SkyUniqueID : Attribute
{
public readonly int uniqueID;
public SkyUniqueID(int uniqueID)
{
this.uniqueID = uniqueID;
}
}
[Serializable, DebuggerDisplay(k_DebuggerDisplay)]
public sealed class EnvUpdateParameter : VolumeParameter<EnvironementUpdateMode>
{
public EnvUpdateParameter(EnvironementUpdateMode value, bool overrideState = false)
: base(value, overrideState) {}
}
public abstract class SkySettings : VolumeComponent
{
[Tooltip("Rotation of the sky.")]
public ClampedFloatParameter rotation = new ClampedFloatParameter(0.0f, 0.0f, 360.0f);
[Tooltip("Exposure of the sky in EV.")]
public FloatParameter exposure = new FloatParameter(0.0f);
[Tooltip("Intensity multiplier for the sky.")]
public MinFloatParameter multiplier = new MinFloatParameter(1.0f, 0.0f);
[Tooltip("Specify how the environment lighting should be updated.")]
public EnvUpdateParameter updateMode = new EnvUpdateParameter(EnvironementUpdateMode.OnChanged);
[Tooltip("If environment update is set to realtime, period in seconds at which it is updated (0.0 means every frame).")]
public MinFloatParameter updatePeriod = new MinFloatParameter(0.0f, 0.0f);
[Tooltip("If set to true, the sun disk will be used in baked lighting (ambient and reflection probes).")]
public BoolParameter includeSunInBaking = new BoolParameter(false);
// Unused for now. In the future we might want to expose this option for very high range skies.
bool m_useMIS = false;
public bool useMIS { get { return m_useMIS; } }
public override int GetHashCode()
{
unchecked
{
int hash = 13;
hash = hash * 23 + rotation.GetHashCode();
hash = hash * 23 + exposure.GetHashCode();
hash = hash * 23 + multiplier.GetHashCode();
// TODO: Fixme once we switch to .Net 4.6+
//>>>
hash = hash * 23 + ((int)updateMode.value).GetHashCode();
//<<<
hash = hash * 23 + updatePeriod.GetHashCode();
hash = hash * 23 + includeSunInBaking.GetHashCode();
return hash;
}
}
public static int GetUniqueID<T>()
{
return GetUniqueID(typeof(T));
}
public static int GetUniqueID(Type type)
{
var uniqueIDs = type.GetCustomAttributes(typeof(SkyUniqueID), false);
if (uniqueIDs.Length == 0)
return -1;
else
return ((SkyUniqueID)uniqueIDs[0]).uniqueID;
}
public abstract SkyRenderer CreateRenderer();
}
}