Research And Application Of Half-dry Stroke Effect In Chinese Ink-wash Drawing Based On Writing Momentum

As a unique form of Oriental Art,ink painting has a long history and culture.It is the treasure of cultural creation.Nowadays,the computer technology and non-photorealistic rendering(Non-Photorealistic Rending,NPR)are becoming more and more mature.It will be the inevitable result that computer technology should be applied to Chinese traditional painting and calligraphy art.By means of the application of high-tech to inherit and carry forward the Chinese traditional culture value,deepen practical value and theoretical research of ink painting culture technology.Among them,Chinese painting in a special form of art ink non-inking effect has a unique artistic charm and beauty.It comes a sharp contrast and rhythm in Chinese ink-wash drawing,which adds a lot of details for the ink beauty.As a result,the non-inking effect texture rich and change constantly has become a difficulty in ink painting and calligraphy and computer simulation,simulation method of non-inking effect has more realistic significance.In this paper,first of all,to realize the computer simulation of brush calligraphy stroke trajectories,the author puts forward the research on the non-photorealistic rendering of writing momentum in the field of ink and wash.After the Chinese calligraphy pen movement analysis,based on the brush holder view the semantic writing momentum center of writing into the brush,the side of writing brush and the back of three writing brush.Based on the construction of brush model rendering algorithm based on dynamic output writing momentum,according to the direction of the strokes,position and normalized according to monitoring parameters such as pressure,footprint direction,calculate the role of the shape,size and head bending parameters determine the dynamic stroke trajectories drawing trend,even automatic generation forecasting stroke trajectories shape.In order to achieve a more delicate brush calligraphy,calligraphy to achieve the requirements of the arts,and enhance the user's operating results,the realization of the pen calligraphy painting is relatively common in writing the unique pen effect.Greatly improve the simulation of the brush calligraphy,so that the lack of ordinary users can also easily painted with the charm of the font.Then using fractal theory,this paper presents an improved Iterated FunctionSystem based on writing momentum to achieve the simulation of the effect of non-inking effect.In this paper,the use of Iterated Function System as a modeling tool,through the analysis of the impact of writing effect non-inking texture,at the physical level and then to improve the Iterated Function System.The sampling point set as input,on the basis of brush liquid content,hardness,brush and paper,the friction between the brush pressure and other parameters of the iteration function of weight mixing,calculation of IFS attractors to form the non-inking effect texture.This method can be used according to the user's way of writing to show ink drawing pen stem caused by random white effect,not only can show the characteristics of the user to write,can exhibit rich random non-inking effect.It solves the problem of the lack of the non-inking effect texture and the details in the previous research.