32 lines
1.2 KiB
C#
32 lines
1.2 KiB
C#
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using UnityEngine;
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using UnityEngine.Rendering;
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using UnityEngine.UI;
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public class HoleImage : Image
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{
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public override Material GetModifiedMaterial(Material baseMaterial)
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{
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var toUse = baseMaterial;
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if (m_ShouldRecalculateStencil)
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{
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var rootCanvas = MaskUtilities.FindRootSortOverrideCanvas(transform);
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m_StencilValue = maskable ? MaskUtilities.GetStencilDepth(transform, rootCanvas) : 0;
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m_ShouldRecalculateStencil = false;
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}
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// if we have a enabled Mask component then it will
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// generate the mask material. This is an optimisation
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// it adds some coupling between components though :(
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Mask maskComponent = GetComponent<Mask>();
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if (m_StencilValue > 0 && (maskComponent == null || !maskComponent.IsActive()))
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{
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var maskMat = StencilMaterial.Add(toUse, (1 << m_StencilValue) - 1, StencilOp.Keep, CompareFunction.NotEqual, ColorWriteMask.All, (1 << m_StencilValue) - 1, 0);
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StencilMaterial.Remove(m_MaskMaterial);
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m_MaskMaterial = maskMat;
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toUse = m_MaskMaterial;
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}
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return toUse;
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}
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}
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