Adapt to recent changes in tilecallback class
Adapt to recent changes in tilecallback class

est77/appleseed-maya,est77/appleseed-maya,appleseedhq/appleseed-maya,luisbarrancos/appleseed-maya2,appleseedhq/appleseed-maya,luisbarrancos/appleseed-maya2,appleseedhq/appleseed-maya,est77/appleseed-maya,luisbarrancos/appleseed-maya2