void DestroyPages()
{
m_PointPage.Dispose();
m_PointPage = null;
m_BilinearPage.Dispose();
m_BilinearPage = null;
m_Database.Clear();
}
void InitPages()
{
// Sanitize the parameters
int cleanMaxSubTextureSize = Mathf.Max(m_MaxSubTextureSize, 1);
cleanMaxSubTextureSize = Mathf.NextPowerOfTwo(cleanMaxSubTextureSize);
int cleanMaxAtlasSize = Mathf.Max(m_MaxAtlasSize, 1);
cleanMaxAtlasSize = Mathf.NextPowerOfTwo(cleanMaxAtlasSize);
cleanMaxAtlasSize = Mathf.Min(cleanMaxAtlasSize, SystemInfo.maxRenderTextureSize);
int cleanMinAtlasSize = Mathf.Max(m_MinAtlasSize, 1);
cleanMinAtlasSize = Mathf.NextPowerOfTwo(cleanMinAtlasSize);
cleanMinAtlasSize = Mathf.Min(cleanMinAtlasSize, cleanMaxAtlasSize);
var cleanMinSize = new Vector2Int(cleanMinAtlasSize, cleanMinAtlasSize);
var cleanMaxSize = new Vector2Int(cleanMaxAtlasSize, cleanMaxAtlasSize);
m_PointPage = new DynamicAtlasPage(RenderTextureFormat.ARGB32, FilterMode.Point, cleanMinSize, cleanMaxSize);
m_BilinearPage = new DynamicAtlasPage(RenderTextureFormat.ARGB32, FilterMode.Bilinear, cleanMinSize, cleanMaxSize);
}