public Material GetModifiedMaterial(Material baseMaterial)
{
var targetMat = baseMaterial;
if (m_ShouldRecalculateStencil)
{
var rootCanvas = NewMaskUtil.FindRootSortOverrideCanvas(transform);
m_StencilValue = maskable ? NewMaskUtil.GetStencilDepth(transform, rootCanvas) : 0;
m_ShouldRecalculateStencil = false;
}
var mask = this.GetComponent <NewMask>();
if (m_StencilValue > 0 && (mask == null || !mask.IsActive()))
{
var maskMat = NewStencilMaterial.Add(baseMaterial,
(1 << m_StencilValue) - 1,
StencilOp.Keep,
CompareFunction.Equal, ColorWriteMask.All,
(1 << m_StencilValue) - 1,
0);
NewStencilMaterial.Remove(m_MaskMaterial);
targetMat = maskMat;
m_MaskMaterial = maskMat;
}
return(targetMat);
}
protected override void OnDisable()
{
base.OnDisable();
m_ShouldRecalculateStencil = true;
SetMaterialDirty();
NewStencilMaterial.Remove(m_MaskMaterial);
m_MaskMaterial = null;
}
public Material GetModifiedMaterial(Material baseMaterial)
{
if (!MaskEnabled())
{
return(baseMaterial);
}
var rootSortCanvas = NewMaskUtil.FindRootSortOverrideCanvas(transform);
var stencilDepth = NewMaskUtil.GetStencilDepth(transform, rootSortCanvas);
if (stencilDepth >= 8)
{
Debug.LogError("Attempting to use a stencil mask with depth > 8", gameObject);
return(baseMaterial);
}
int desiredStencilBit = 1 << stencilDepth;
if (desiredStencilBit == 1)
{
var maskMaterial = NewStencilMaterial.Add(baseMaterial, 1, StencilOp.Replace, CompareFunction.Always,
m_ShowMaskGraphic ? ColorWriteMask.All : 0);
NewStencilMaterial.Remove(m_MaskMaterial);
m_MaskMaterial = maskMaterial;
var unmaskMaterial = NewStencilMaterial.Add(baseMaterial, 1, StencilOp.Zero, CompareFunction.Always, 0);
NewStencilMaterial.Remove(m_UnmaskMaterial);
m_UnmaskMaterial = unmaskMaterial;
graphic.canvasRenderer.popMaterialCount = 1;
graphic.canvasRenderer.SetPopMaterial(m_UnmaskMaterial, 0);
return(m_MaskMaterial);
}
var maskMaterial2 = NewStencilMaterial.Add(baseMaterial, desiredStencilBit | (desiredStencilBit - 1),
StencilOp.Replace, CompareFunction.Equal, m_ShowMaskGraphic ? ColorWriteMask.All : 0,
desiredStencilBit - 1, desiredStencilBit | (desiredStencilBit - 1));
NewStencilMaterial.Remove(m_MaskMaterial);
m_MaskMaterial = maskMaterial2;
graphic.canvasRenderer.hasPopInstruction = true;
var unmaskMaterial2 = NewStencilMaterial.Add(baseMaterial, desiredStencilBit - 1, StencilOp.Replace,
CompareFunction.Equal, 0, desiredStencilBit - 1, desiredStencilBit | (desiredStencilBit - 1));
NewStencilMaterial.Remove(m_UnmaskMaterial);
m_UnmaskMaterial = unmaskMaterial2;
graphic.canvasRenderer.popMaterialCount = 1;
graphic.canvasRenderer.SetPopMaterial(m_UnmaskMaterial, 0);
return(m_MaskMaterial);
}
protected override void OnDisable()
{
base.OnDisable();
if (graphic != null)
{
graphic.SetMaterialDirty();
graphic.canvasRenderer.hasPopInstruction = false;
graphic.canvasRenderer.popMaterialCount = 0;
}
NewStencilMaterial.Remove(m_MaskMaterial);
m_MaskMaterial = null;
NewStencilMaterial.Remove(m_UnmaskMaterial);
m_UnmaskMaterial = null;
NewMaskUtil.NotifyStencilStateChanged(this);
}