Why is cycles render 3D model crashing when animate?

Cycles render often crashes during animation due to insufficient system resources (RAM/GPU VRAM) or scene complexity exceeding hardware limits. Animation adds load by rendering each frame individually—high-res textures, unoptimized geometry, or active simulations (cloth/fluid) can overwhelm your setup. To fix, reduce texture sizes, simplify models, or disable non-critical simulations—focus on the most resource-heavy elements first.