[C4D] A small Tag plugin that will output the most important dirty checksums for the object it's attached to into the console. Quite handy to check if an object keeps refreshing or rebuilding its cache. Simply attach the "Show Dirty Checksums" tag to an object and watch the Python console output.

c4d-tag-show-dirty-checksums.pyp

import c4d

ID_SHOWDIRTYCHECKSUMSTAG = 1052821


class ShowDirtySumsTag(c4d.plugins.TagData):

    def Init(self, node):
        priorityData = node[c4d.EXPRESSION_PRIORITY]
        if priorityData is not None:
            priorityData.SetPriorityValue(
                c4d.PRIORITYVALUE_CAMERADEPENDENT, True)
            priorityData.SetPriorityValue(
                c4d.PRIORITYVALUE_MODE, c4d.CYCLE_GENERATORS)
            node[c4d.EXPRESSION_PRIORITY] = priorityData

        return True

    def Execute(self, tag, doc, op, bt, priority, flags):
        if op is None:
            return c4d.EXECUTIONRESULT_OK

        # Get dirty checksums
        dirtyMatrix = op.GetDirty(c4d.DIRTYFLAGS_MATRIX)
        dirtyData = op.GetDirty(c4d.DIRTYFLAGS_DATA)
        dirtySelect = op.GetDirty(c4d.DIRTYFLAGS_SELECT)
        dirtyCache = op.GetDirty(c4d.DIRTYFLAGS_CACHE)
        dirtyChildren = op.GetDirty(c4d.DIRTYFLAGS_CHILDREN)
        dirtyDescription = op.GetDirty(c4d.DIRTYFLAGS_DESCRIPTION)

        print('[' + str(c4d.GeGetTimer()) + ']' +
              ' Dirty checksums for object "' + op.GetName() + '":')
        print('DIRTYFLAGS_MATRIX: ' + str(dirtyMatrix))
        print('DIRTYFLAGS_DATA: ' + str(dirtyData))
        print('DIRTYFLAGS_SELECT: ' + str(dirtySelect))
        print('DIRTYFLAGS_CACHE: ' + str(dirtyCache))
        print('DIRTYFLAGS_CHILDREN: ' + str(dirtyChildren))
        print('DIRTYFLAGS_DESCRIPTION: ' + str(dirtyDescription))
        print('')

        return c4d.EXECUTIONRESULT_OK


if __name__ == "__main__":
    c4d.plugins.RegisterTagPlugin(id=ID_SHOWDIRTYCHECKSUMSTAG, str="Show Dirty Checksums",
                                  info=c4d.TAG_EXPRESSION | c4d.TAG_VISIBLE, g=ShowDirtySumsTag, description='tshowdirtychecksums', icon=None)