Niels Voskens, a Technical Artist from Cradle BUas, Breda University of Applied Sciences' R&D Lab, has recently shared a series of demos showcasing an awesome WIP modular system the team has in the works.
Dubbed Crying System, the framework utilizes Niagara's Skeletal Mesh Traversal component and allows the user to make Unreal Engine's MetaHumans cry simulated tears that can move in a realistic manner and are affected by gravity. Designed to seamlessly integrate with any MetaHuman model, the tears' positions are recorded to a render target, which is then integrated into the MH skin shader. According to Niels, the system supports Wet Maps for realistic tear trails and makeup smudging for added realism.