Since 1970s, the implementation of hair rendering has been a problem that the graphic community has been trying to solve. In the early days, hair rendering took a brute force approach that took hundreds of hours to model and render each hair. This method eventually fails. Because under the existing hardware conditions, it is unrealistic to simulate highly complex scenes such as hair in real time through geometric objects. Today, graphics experts, inspired by the illusion created by painters, have turned to indirect real-time hair rendering through textures and light. We all have such an experience. When we appreciate an oil painting from a distance, we will feel that the details on the painting are rich. But when we look at it very closely, what we see is nothing more than a pile of chaotic color blocks. Real-time hair rendering exploits the illusion of human vision.
I was on a business trip some time ago and couldn't access the internet. I wrote a real-time hair painting in the hotel at night. Program(See). Detailed technology in this regard ArticleIt's not time to write.
