Module transforms 

Transforms: the user-facing descriptions of color operations (port of OpenColorTransforms.h).

Every transform is a plain struct with public fields plus convenience accessors. The Transform enum wraps all of them. Transforms are turned into ops by build::build_ops.

Re-exports

pub use build::BuildOps;

pub use build::Validate;

Modules

build

Conversion of transforms into ops.

grading

Grading value types used by the grading transforms (GradingPrimary, GradingTone, GradingRgbCurve, GradingHueCurve, B-spline curves).

Structs

AllocationTransform

Allocation (uniform / lg2) transform, used by legacy GPU paths and allocation in colorspaces.

BuiltinTransform

A transform from the builtin registry, identified by its style name (for instance "ACEScct_to_ACES2065-1").

CdlTransform

ASC CDL (slope / offset / power / saturation).

ColorSpaceTransform

Conversion between two color spaces of the config.

DisplayViewTransform

Conversion from a color space to a (display, view) pair.

ExponentTransform

Power function out = in ^ value per channel (RGBA).

ExponentWithLinearTransform

Power function with a linear segment near zero (sRGB / Rec.709 style “moncurve”).

ExposureContrastTransform

Exposure / contrast / gamma adjustment.

FileTransform

Transform loaded from an external file (LUT, CDL, CLF, …).

FixedFunctionTransform

Hard-coded color math (ACES red modifier, glow, HSV, PQ, ACES 2 …).

GradingHueCurveTransform

Hue curve grading.

GradingPrimaryTransform

Primary grading (lift/gamma/gain, contrast, offset, exposure, saturation).

GradingRgbCurveTransform

RGB curve grading.

GradingToneTransform

Tonal grading (blacks, shadows, midtones, highlights, whites).

GroupTransform

Ordered list of transforms.

LogAffineTransform

out = logSlope * log(linSlope * in + linOffset, base) + logOffset.

LogCameraTransform

Camera log curve: log affine with a linear segment below lin_side_break.

LogTransform

out = log(in, base).

LookTransform

Apply looks (and color space conversions) from src to dst.

Lut1DTransform

1D LUT. values holds length * 3 interleaved RGB values.

Lut3DTransform

3D LUT. values holds grid_size^3 * 3 RGB values with the blue index changing fastest: index = ((r * n + g) * n + b) * 3.

MatrixTransform

4x4 matrix (row major) plus offset: out = M * in + offset.

RangeTransform

Affine remap of [min_in, max_in] to [min_out, max_out] with optional clamping. Each bound is optional.

Enums

Transform

Any transform.

Constants

DEFAULT_LUMA_COEFS

Default luma coefficients (Rec.709) used by CDL saturation.

IDENTITY_MATRIX44

The 4x4 identity matrix.

METADATA_INPUT_DESCRIPTION

Element name of the input description child.

METADATA_SAT_DESCRIPTION

Element name of the SAT description child.

METADATA_SOP_DESCRIPTION

Element name of the SOP description child.

METADATA_VIEWING_DESCRIPTION

Element name of the viewing description child.