Real-time physically plausible simulation of forest

•A lookup table method to simulate a physically plausible tree animation.•Extend the look-up table algorithm to large-scale forest simulation through voxel sampling method.•An algorithm for searching approximate physical information is proposed. [Display omitted] In this paper, we propose a lookup table method to simulate a physically plausible large-scale forest animation. Our method is rooted in the FEM simulator to simulate plant deformation, and establish a table through pre-computed dynamic equation data. Based on this table, an efficient physical state similarity algorithm for traversing the table is proposed. Real-time search for the vertices displacement of the model from the table, and constantly update the current gesture of the model. The forest can react to the environment at an interactive rate by calculating the effects of random wind. Experiments show that our method can simulate a single tree with high efficiency, and can simulate a physically plausible forest with 500 trees at a frame rate of 34(fps).