Transferring vertex colors between objects in Blender is a technique used to copy color information from one mesh to another, preserving detail and allowing for complex texturing workflows. This process can be used for baking lighting information, transferring hand-painted details, or generating unique textures. For example, an artist might sculpt high-resolution details and bake the vertex colors from that sculpt onto a lower-resolution game-ready model.
This method offers several advantages. It provides a non-destructive workflow, allowing modifications to the source mesh without directly impacting the target. It is also memory efficient, as vertex color data is generally less resource-intensive than high-resolution textures. Historically, this process has become integral to game development and animation pipelines, enabling artists to create visually rich assets while optimizing performance. Efficient color transfer is critical for maintaining visual fidelity and consistency across different levels of detail.