Real-time Rendering of Energy-Wave Expression

Abstract

The expressions that a lump of the energy strongly emits light and transforms shape are used as method of attack or special effects in the creation contents. That expressions are called Energy-Wave. This study suggests a new Energy-Wave expression method, in interactive creation contents such as the 3 dimensional video game. The basic concept of this technique is similar to Ray-Casting which is a kind of the Volume Rendering. We omitted a generation of volume data by prescribing 3 dimensional energy distribution data by a line integral. Furthermore, we succeeded of speed up by calculating at line integral function using GPGPU. From these, we drew strength of the light and shape deformation of the Energy-Wave precisely in real-time.

Real-Time Rendering Technique for Visual Expression of Arbitrary-Shaped Energy Wave

“…In our previous work [2], a distribution function S(P, M) that decays radially from an arbitrary point M is defined as equation (2):…”

“…This research has expanded the authors' previous research[2] and has proposed a method for drawing the new forms of the energy wave. In…”

“…Figure 2 shows an example of the local adjustment. Earlier work [2] theoretically can generate a similar expression by combining spherical and cylindrical distribution functions. However, the earlier work requires evaluation of multiple distribution functions, which yield slower rendering.…”

“…This paper refers this visual effect as Energy-Wave. Our research defines the Energy-wave as a virtual phenomenon of strong light emission from high energy-density locations, which is a similar definition as in [2], and the shape of the light source deforms as the energydistribution changes over time.…”

“…This research is specialized for the energy-wave expression, similar to Abe et al [2], and proposes new dense energy-distribution functions defined over the 3D space, and a real-time rendering technique of such functions. This research proposes two new energy-distribution functions, (i) torus shaped, and (ii) centered along arbitrary quadratic curve, in addition to a pointcentered (spherical) and a line-centered (cylindrical) functions.…”