Rasterizing a layer in Krita converts vector or text-based content into a pixel-based format. This process essentially transforms the layer’s data from mathematical descriptions of shapes and text to a grid of individual colored pixels. An example would be converting a vector-based illustration with smooth, scalable lines into a bitmap image where the lines are defined by the color of the individual pixels that make them up. Once a layer is rasterized, it can be edited like any other raster image, allowing for pixel-level manipulation.
The action of rasterizing provides significant benefits. It allows the application of pixel-based filters and effects to layers that were previously incompatible. Rasterization ensures consistent appearance across different devices and software, as the image is no longer reliant on vector rendering capabilities. Historically, rasterization has been a critical step in preparing vector graphics for print and display on devices with limited vector support. Furthermore, rasterizing can optimize performance, particularly in complex compositions with numerous vector objects, by reducing the computational load on the system.
