This PDF tutorial covers the basics of using the CryptoMatte node in Blender's compositor to extract object masks. It specifically addresses challenges encountered when rendering with motion blur.

The guide compares CryptoMatte to the traditional ID Mask workflow, explaining why ID Mask struggles with camera effects like depth of field and motion blur. It also details how CryptoMatte offers a more efficient solution for isolating multiple elements in complex scenes without the need to manually assign Object or Material Indices.