Abstract
Cloth simulation remains challenging for past two decades. There are several factors that contribute to this challenge such as, internal and external forces, water, oil and other fluid elements. This paper focuses on simulating wet cloth by considering external forces and water element. Initially, the mass spring technique is used to produce cloth sheet that is composed from collection of matrix point that connects to the spring, then external and internal forces are applied into cloth surfaces. The inner strength is represented by stiffness between springs of cloth particles, while outside forces depend on wind pressure and mass of object that rely on gravity. The wet cloth simulation is started by adding the fluid component into the textile elements which will affect the mass of the cloth itself. The cloth will absorb significance quantity of fluid that will distress the tension between spring particles inside cloth. The experiment has been conducted by simulating the cloth while absorbing the fluid which is controlled by particular equation. It has shown that saturation level of cloth is changing as well as the texture turn to be darker compared to dry cloth. The darkest color of cloth reflects the highest saturation level of the cloth. It also means that cloth cannot absorb more fluid since it is already full in term of capacity. The evaluation is conducted by comparing the dry and wet cloth in terms of motion and physical appearance. It is concluded that the proposed method is able to simulate the convincing wet cloth simulation with high Frame per Second (FPS) rate and realistic motion and appearance. The future work can focus on simulating interaction between fluid and cloth elements to see spoil scene, or washing cloth that remain challenging.
Highlights
Cloth is attached into daily human life
Most of the researchers are focusing on studying the fluid effects toward fabric in real time simulation
After applying the wetting model, the Frame per Second (FPS) measurements were affected by the variation of the physical properties which were added through new frames
Summary
Cloth is attached into daily human life. In order to simulate the cloth, the textile types and its element should be considered and taken into account when do simulation. Most of the researchers are focusing on studying the fluid effects toward fabric in real time simulation. While [2] already touch wet cloth simulation by rendering fluid with absorbent textiles. Other researchers tried to focus on geometric technique for producing surface pieces that cover the cloth bending They provide sewing typical in deformation weave design and stitching effect like in real world [3]. Chen et al have made significance progress by simulating cloth with wet effects They are fitted the wet cloth into virtual human to see the behaviour of bending and crumpling [6]. Underwater cloth simulation [6], soaking technique for fabric [2] and absorbent behaviour of fluid when passing through textile were studied as well [7]. The simulation of saturated fabric that blowing up by wind and pulled by gravity is the main contribution of this research
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