Real-time rendering of skin changes caused by emotions

In this paper a framework for dynamically parameterizing emotional skin changes like blushing and pallor is outlined. The parameterization is based on physiological and psychological knowledge. Furthermore, an on-surface droplet flow simulation was integrated for simulating a weeping character. The skin color changes and the droplet flow simulation can operate in real-time and thus provide an animation, which is consistent with the facial expression of the virtual character