public void PerformClipping()
{
if (m_ShouldRecalculateClipRects)
{
MaskUtilities.GetRectMaskForClip(this, m_Clippers);
m_ShouldRecalculateClipRects = false;
}
bool validRect = true;
Rect clipRect = Clipping.FindCullAndClipWorldRect(m_Clippers, out validRect);
bool clipRectChanged = clipRect != m_LastClipRectCanvasSpace;
if (clipRectChanged || m_ForceClip)
{
foreach (var clipTarget in m_ClipTargets)
{
clipTarget.SetClipRect(clipRect, validRect);
}
m_LastClipRectCanvasSpace = clipRect;
m_LastValidClipRect = validRect;
}
foreach (var clipTarget in m_ClipTargets)
{
var maskable = clipTarget as MaskableGraphic;
if (maskable != null && !maskable.canvasRenderer.hasMoved && !clipRectChanged)
{
continue;
}
clipTarget.Cull(m_LastClipRectCanvasSpace, m_LastValidClipRect);
}
}