Method for calculating virtual ink diffusion range based on force feedback technology
A force feedback and ink technology, which is applied in the field of virtual drawing, can solve the problems of not considering the influence of the ink diffusion range of force perception factors, reduce the simulation effect of ink diffusion, etc., and achieve the effect of enhancing the simulation effect.
Inactive Publication Date: 2015-01-07
DALIAN UNIV OF TECH
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[0003] Based on the research status at home and abroad, it is found that the influence of force sensory factors on the diffusion range of ink and ink is not considered in the ink diffusion simulation of virtual rendering, which reduces the effect of ink diffusion simulation
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[0049] In this specific embodiment, the drawing of a point in the virtual drawing is taken as an example to illustrate the calculation method of the dark diffusion zone and the light diffusion zone range. The force feedback device used is Phantom Desktop, and the maximum output force is
[0050] F max = 7.9 cattle. The specific process is as follows:
[0051] 1. Establish a rice paper model, set the area of a single paper element N=1, the unit is the side length of the paper element × the side length of the paper element, the absorption degree i=3, the unit is the number of ink particles / paper element, and the diffusion degree d=20%;
[0052] 2. The diameter of the virtual brush used in this example is pen_size=30, the unit is the side length of the paper element, and the ink output of the brush during the point drawing process is M 0 =4000 number of ink particles (this amount is a relative amount and does not affect the simulation effect), ink density = 70%, force applied to the...
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A method for calculating virtual ink diffusion range based on force feedback technology belongs to the technical field of virtual drawing. Virtual force influence coefficient is introduced to divide a diffusion area into a dark diffusion area and a light diffusion area. The methods for calculating the diffusion range of the dark diffusion area and the diffusion range of the light diffusion area are provided. The method includes steps of calculating absorbing amount, calculating particle amount in the dark diffusion area, calculating the diffusion range of the dark diffusion area, calculating particle amount in the light diffusion area, calculating the diffusion range of the light diffusion area and the like. Width 2 of the light diffusion area is calculated so that the diffusion range of the light diffusion area under the influence of the virtual force is obtained. The force feedback technology is introduced into the virtual drawing, force influencing mechanism to ink diffusion during the virtual drawing is disclosed, the methods for calculating the diffusion range of the dark diffusion area and the diffusion range of the light diffusion area are provided respectively, the defect that force factors are not considered in the existing ink diffusion methods is overcome, and simulation effect of ink diffusion in the virtual drawing is improved.
Description
Technical field [0001] The present invention relates to the technical field of virtual rendering, in particular to a method for calculating the diffusion range of ink based on force feedback technology in virtual rendering. Background technique [0002] In order to achieve the real ink diffusion effect in virtual drawing, it is necessary to simulate ink diffusion based on the rice paper model. Ink and wash are made of tiny particles, which use rice paper as a carrier to move in rice paper cells. In the literature "Tosiyasu L. Kunii, GV Nosovskij, T. Hayashi. A Diffusion Model for Computer Animation of Diffuse Ink Painting[J]. Computer Animation, 1995" abroad, Kunii et al. proposed that the diffusion of ink is started by the diffusion of water. The diffusion of particles drives the movement of ink particles between adjacent paper cells, and expounds the principle of the generation of dark and light diffusion areas and diffusion boundaries. The domestic research results are mainl...
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IPC IPC(8): G06F19/00
Inventor 侯增选郭超孙景华
Owner DALIAN UNIV OF TECH