private bool m_MeshChanged; //标记mesh是否需要重构，将Mesh的重新计算延迟到下一帧
void Awake()
{
RecalculateMatrix();
m_Mesh = new DPProjectorMesh();
m_Mesh.RebuildMesh(m_Projector);
}
void Update()
{
if (m_WorldToLocal != transform.worldToLocalMatrix)
{
m_MatrixChanged = true;
}
if (m_MatrixChanged)
{
m_MatrixChanged = false;
RecalculateMatrix();
}
if (m_MeshChanged)
{
m_MeshChanged = false;
m_Mesh.RebuildMesh(m_Projector);
}
m_Mesh.DrawMesh(material, transform.localToWorldMatrix, gameObject.layer);
}
