Particles may not be displayed in the Trapcode Particular designer in After Effects for a few reasons. One common reason is that the emitter may not be properly set up or activated. Another reason could be that the particle settings, such as size or opacity, are set to zero or very low values, making the particles difficult to see. Additionally, the composition may be set to a very small resolution, causing the particles to be too small to be visible. Checking these settings and adjusting them accordingly should help display the particles in the Trapcode Particular designer. **

The transition from traditional agricultural to modern industrial society in the 19th century was characterized by several key changes. Firstly, there was a shift from rural, agrarian-based economies to urban, industrialized ones, as people moved from the countryside to cities in search of work in factories. This led to significant changes in the organization of labor and the structure of society, as people began to work in large-scale industrial enterprises rather than small-scale agricultural production. Additionally, there were advancements in technology and the development of new machinery, which revolutionized production processes and increased efficiency. Finally, there was a shift in social and economic power, as industrialists and factory owners became increasingly influential, leading to the rise of capitalism and the emergence of new social classes. **