Toggle Hypershade Thumbnail Update

Here’s a simple MEL script to toggle hypershade thumbnail updates. cheers!

global proc rf_renderThumbnailUpdate() {
    if (`renderThumbnailUpdate -q` == 0) {
        renderThumbnailUpdate 1;
        print "Render Thumbnail Update Turned ON! \n";
    }
    else {
        renderThumbnailUpdate 0;
        print "Render Thumbnail Update Turned OFF \n";
    }
}
rf_renderThumbnailUpdate();