Layersinto

Layersinto is a term used in digital image processing and graphics software to describe the operation of combining multiple source layers into a single destination layer. The concept covers both scripting interfaces and interactive workflows, and is similar in intent to flattening or merging layers but specifies the destination for the result and how each input layer contributes.

In a typical implementation, layersinto processes the input layers in a defined order, applying each layer's blend mode and opacity to the destination. The operation yields a composited image where the resulting pixels reflect the cumulative effects of source layers, masks, and clipping. Some implementations support per-layer blend modes, adjustment layers, and non-destructive edits by preserving the original layers.

Algorithmic considerations include handling of alpha channels, color spaces, and edge conditions such as translucent edges or fully transparent layers. Commonly, the operation uses standard alpha compositing equations and may optionally pre-multiply alpha to improve precision. Performance can be improved by processing in tiles or leveraging GPU acceleration.

Applications include batch processing of graphic assets, map and GIS compositing, game asset pipelines, and data visualization where multiple datasets are layered into a single render. It is related to, but distinct from, merging or flattening, since layersinto can preserve the source layers and metadata for further edits depending on the software.

See also: layer compositing, alpha blending, image flattening, merge layers. Note: The term is not standardized across all software, and implementations vary in syntax and capabilities.