Hydrodynamics-based Real-time Motion Effects in Character Animation
Enhua Wu · Jisuanji fangzhen · 2012
In fast character animations,motion-blur techniques are always employed for fantastic motion effects,thus expressing the desired atmosphere.During longtime work,it is popular to use hardware or software methods to achieve motion-blur effects through simply image blending.To supply high-standard effects,geometric methods based on global illumination were engaged.However,it could be such a burden of computation for real-time rendering.In this work,a new geometric method was proposed aiming to solve the computational efforts.Nevertheless,some special effects along the motion track were generated though the combination of the hydrodynamics.In order to avoid repeated computation at each frame,as well as break the limitation of trajectory generation,the trajectory was decomposed and a multi-pass geometric rendering technique was enforced to realize instancing for resource reuse.In the rendering pipeline,trajectory tracing and fluid solution were separated to match different fluid effects flexibly.Since the algorithm is based on the environment of parallel geometric shading on GPU,finally,with the rendering quality of cinematic-level achieved,a reasonable cost is maintained to archive real time rendering including the motion blur effect.