SAI also includes linework layers, which can be used instead of manually drawing linework. Users may use another program for more complex editing, but when the image is brought back to SAI, its properties may be changed. SAI format.īecause the program does not focus on image editing, the only adjustments present are Brightness/ Contrast and Hue/ Saturation, and therefore no support of level editing, channel extraction, etc.

There is also no printing functionality, but documents can be exported in a range of popular formats, such as. SAI displays white and transparency in the same way, which may cause significant display differences when exporting to another program, such as Adobe Photoshop. Some common features that exist in similar software, such as text layers, gradients, and shape tools, are not implemented, as SAI focuses on drawing and painting, while the final composition is often done using another application. Any series of transforms can be set up and then applied at once to a specific selection minimizing the softening of the image. SAI comes with a full set of transformation tools that can work on selections, including move, resize, rotate, and a free (perspective) transform. There is also a selection brush tool, which can be customized like the drawing brush.

Selection tools include the simple square selection, the lasso, and magic wand, which can be configured for anti-aliasing. There is also a pen movement and pressure smoothing feature which can be manually configured as to how much effect it has. This allows one to add shading and highlights to an area without creating new masks for the additional layers. In addition to this, layers can be masked by clipping them to a lower layer. Work can be done on separate layers, which can be grouped and have opacity masks. There is also a set of vector drawing tools intended for inking, which, like the raster tools, can be configured to be pen pressure-sensitive. Various raster drawing tools are implemented, such as the Airbrush, Watercolor, Pen, and Marker, which can all be easily customized, and stored in slots in the user interface of the application. Colors can be stored in the swatches panel. An application-wide scratchpad (which can be used as a color mixing panel) is provided, which is saved between sessions. It is also possible to open multiple viewports to the same document. The toolbar on the top part of the screen also includes a button to mirror the drawing view without mirroring the actual drawing. The drawing canvas can be both zoomed and rotated using the sliders on the navigator or the hotkeys configured on the keyboard. The user interface allows multiple documents to be opened at the same time. SAI is a lightweight painting application.

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