He applied it to a solid layer. A single red 'X' appeared in the center of his composition.
: Smoke, fire, rain, falling snow, and dust motes. Red Giant Trapcode Particular v2.0 AE plugin
The v2.0 release focused on deep integration with the After Effects 3D environment and improved physical simulations. He applied it to a solid layer
: It supports the After Effects camera's depth of field settings, naturally blurring particles based on their distance from the lens. Red Giant Trapcode Particular v2.0 AE plugin