32 lines
1.2 KiB
C#
32 lines
1.2 KiB
C#
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using UnityEngine;
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namespace LeTai.Asset.TranslucentImage
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{
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public readonly struct ActiveRegion
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{
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public static readonly ActiveRegion INACTIVE = new ActiveRegion(Rect.zero,
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Matrix4x4.zero,
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VPMatrixCache.Index.INVALID);
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public readonly Rect rect;
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public readonly Matrix4x4 localToWorld;
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public readonly VPMatrixCache.Index vpMatrixCacheIndex;
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public bool IsWorldSpace => vpMatrixCacheIndex.IsValid();
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/// <param name="vpMatrixCacheIndex">Use VPMatrixCache.Index.INVALID For Screen Space - Overlay Canvas. Otherwise, see <see cref="VPMatrixCache"/></param>
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public ActiveRegion(Rect rect, Matrix4x4 localToWorld, VPMatrixCache.Index vpMatrixCacheIndex)
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{
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this.rect = rect;
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this.localToWorld = localToWorld;
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this.vpMatrixCacheIndex = vpMatrixCacheIndex;
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}
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}
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public interface IActiveRegionProvider
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{
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bool HaveActiveRegion();
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// out params to avoid double allocation of the fat struct
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void GetActiveRegion(VPMatrixCache vpMatrixCache, out ActiveRegion activeRegion);
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}
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}
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