  Optical tactile sensors are extensively utilized in intelligent robot
manipulation due to their ability to acquire high-resolution tactile
information at a lower cost. However, achieving adequate reality and
versatility in simulating optical tactile sensors is challenging. In this
paper, we propose a simulation method and validate its effectiveness through
experiments. We utilize path tracing for image rendering, achieving higher
similarity to real data than the baseline method in simulating pressing
scenarios. Additionally, we apply the improved Material Point Method(IMPM)
algorithm to simulate the relative rest between the object and the elastomer
surface when the object is in motion, enabling more accurate simulation of
complex manipulations such as slip and rotation.
