Cycles GPU out-of-memory allocation failure: measuring texture vs. geometry VRAM pressure before optimization
Error context Cycles GPU rendering aborts with a CUDA, OptiX, HIP, Metal, or oneAPI allocation failure when scene data exceeds available VRAM. The failure originates in the Cycles device memory allocation path, not Blender's core. Goal and uncertainty The objective is to determine whether a specific scene's memory pressure is dominated by texture memory or b