In today's film and television industry, muscle simulation technology which can be applied to human or vertebrate animals has been widely used to make the performance of created characters more vivid.

Invertebrate which have a significantly different body structure from humans, share many similarities in terms of muscle characteristics. Therefore, there is an opportunity to apply muscle simulation technology to transform visual appearance.

Caterpillar is kind of invertebrate animal, has been chosen as an example in this research and been simulated with 3D computer graphics. Through this method, we are able to demonstrate the limb movements and behavioral performances of butterfly larva, gaining a deeper understanding of the locomotion characteristics of this species.

So, I create a short animation to simulate body dynamics of butterfly larva in nature environment to support the research of the thesis.

result of this research presents not only new insights and approaches for the application of muscle systems of invertebrate animals in animation, but also provides valuable references and recommendations for the field of animation production and visual effects.