Module attribute

Expand description

Contains all meta data attributes. Each layer can have any number of [Attribute]s, including custom attributes.

Re-exports§

block_type_strings: The string literals used to represent a BlockType in a file.
type_names: Contains string literals identifying the type of an attribute.

ChannelDescription: A single channel in an layer. Does not contain the actual pixel data, but instead merely describes it.
ChannelList: A List of channels. Channels must be sorted alphabetically.
Chromaticities: The color space of the pixels.
FloatRect: A rectangular section anywhere in 2D float space.
IntegerBounds: A rectangular section anywhere in 2D integer space. Valid from minimum coordinate (including) -1,073,741,822 to maximum coordinate (including) 1,073,741,822, the value of (i32::MAX/2 -1).
KeyCode: Uniquely identifies a motion picture film frame.
Preview: A small rgba image of i8 values that approximates the real exr image.
Text: A byte array with each byte being a char. This is not UTF an must be constructed from a standard string.
TileDescription: Describes how the layer is divided into tiles. Specifies the size of each tile in the image and whether this image contains multiple resolution levels.
TimeCode: Contains time information for this frame within a sequence. Also defined methods to compile this information into a TV60, TV50 or Film24 bit sequence, packed into u32.

AttributeValue: Contains one of all possible attributes. Includes a variant for custom attributes.
BlockType: layer type, specifies block type and deepness.
EnvironmentMap: If this attribute is present, it describes how this texture should be projected onto an environment.
LevelMode: Whether to also store increasingly smaller versions of the original image.
LineOrder: In what order the Blocks of pixel data appear in a file.
SampleType: The type of samples in this channel.

byte_size: Number of bytes this attribute would consume in an exr file.
invalid_type 🔒
read: Read the attribute without validating. The result may be Ok even if this single attribute is invalid.
u8_from_decimal32 🔒
u8_to_decimal32 🔒
validate: Validate this attribute.
write: Without validation, write this attribute to the byte stream.

DataWindow: The integer rectangle describing where an layer is placed on the infinite 2D global space.
DisplayWindow: The integer rectangle limiting which part of the infinite 2D global space should be displayed.
Matrix3x3: A float matrix with three rows and three columns.
Matrix4x4: A float matrix with four rows and four columns.
Rational: An integer dividend and divisor, together forming a ratio.
TextBytes: The raw bytes that make up a string in an exr file. Each u8 is a single char.
TextSlice: A byte slice, interpreted as text