public void UpdateTextureTransform(TextureUnitState texUnit, float pageX, float pageZ)
{
//Axiom.Core.LogManager.Instance.Write("Decal: {0}, {1} page:{2}, {3}", posX, posZ, pageX, pageZ);
float pageSize = TerrainManager.Instance.PageSize * TerrainManager.oneMeter;
float scaleX = sizeX / pageSize;
float scaleZ = sizeZ / pageSize;
texUnit.SetTextureScale(scaleX, scaleZ);
float centerX = pageX + pageSize / 2f;
float centerZ = pageZ + pageSize / 2f;
texUnit.SetTextureScroll((centerX - posX) / (pageSize * scaleX), (centerZ - posZ) / (pageSize * scaleZ));
texUnit.SetTextureRotate(rot);
}