File Formats

N-Paint supports a variety of popular image formats, including TIF, JPG, and SGI's native SGI (RGB) format. You can specify the number of components and bits for most of these formats, ranging from 8-bit to 64 bit.

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Supported File Formats

Table A.1 File formats and descriptions

File Format	Description
RGB	SGI RGB
TIFF	Tagged image file format.
TPX	Format used with N-Render rendering package.
RGBA	Four component SGI format.
SGI	Three component SGI format
TIM	Native Sony Playstation image format.

N-Paint can also read all of the above formats.

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Mapping Components

Table A.1 describes the various mappings that occur when using the Save Canvas Only, Save Matte Only, and Save Both operations in the Library and Script/Canvas Operations sections of N-Paint.

Table A.2 Mapping components

Element being saved	To 4 channels	To 3 channels	To 1 channel
Canvas only	RGB channels saved to RGB. Matte written out as black.	RGB channels saved to RGB. Matte ignored.	RGB channels written out as one channel grayscale (based on luminance). Matte ignored.
Matte only	RGB channels written out as black. Matte saved to alpha channel.	RGB channels ignored. Matte written out as three channel grayscale.	RGB channels ignored. Matte saved to alpha channel.
Canvas & Matte	RGB channels saved to RGB. Matte saved to alpha channel.	RGB channels saved to RGB. Matte ignored.	RGB channels ignored. Matte saved to alpha channel.

Note. The Components value you specify when saving a file remain in effect until changed. So if you save the first in a series of images to a 3 component image, N-Paint saves all subsequent images with 3 components until you change that setting.

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