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# RLA : BitmapIO

The RLA BitmapIO class provides a function published interface for RLA I/O that gives access to the settings of the image format to be saved.

As with all FP interfaces, you can access the interface properties directly without explicitly supplying the interface name, for example rla.colorDepth is the same but shorter than rla.iRLAio.colorDepth

## Interfaces:

    Interface: iRLAio

Properties:

    .colorDepth : integer : Read|Write

Get/Set the color depth in bits per channel. Possible values are 8, 16 and 32.

    .alpha : boolean : Read|Write

Enable/Disable the saving of alpha channel.

    .premultAlpha : boolean : Read|Write

Enable/Disable premultiplied alpha.

    .description : string : Read|Write

Get/Set the file description string.

    .author : string : Read|Write

Get/Set the author string.

    .zChannel : boolean : Read|Write

Get/Set Z-buffer channel saving.

    .mtlIDChannel : boolean : Read|Write

Enable/Disable material ID channel saving.

    .nodeIDChannel : boolean : Read|Write

Enable/Disable node ID channel saving.

    .uvChannel : boolean : Read|Write

Enable/Disable texture coordinates channel saving.

    .normalChannel : boolean : Read|Write

Enable/Disable normal vector channel saving.

    .realpixChannel : boolean : Read|Write

Enable/Disable non-clamped color channel saving.

    .coverageChannel : boolean : Read|Write

Enable/Disable coverage channel saving.

EXAMPLE
    x = rla.colorDepth--color depth value of 8, 16, or 32
    rla.colorDepth = 16--set color depth to 16 bpp
    rla.description ="First Revision"--set the file description string
    rla.author ="Bobo"--set the author name string
    rla.zChannel = true--enable Z-Buffer saving

#### See Also

- BitmapIO Classes

- BMP : BitmapIO

- JPEG : BitmapIO

- Portable_Network_Graphics : BitmapIO

- Targa : BitmapIO

- RPF : BitmapIO