Add a gradient interpolation space attribute with sRGB Gamma (existing) and sRGB Linear (new) (#4412)

* Build dropdown menu entries from choice type metadata

* Add a gradient interpolation color space attribute, blending stops in linear light by default

* Add a Space interpolation dropdown to the color picker popover

* Stamp legacy gradient ramps with their implicit gamma interpolation during deserialization

* Resolve color-interpolation from SVG style blocks and fix cascade order among repeated declarations
This commit is contained in:
Keavon Chambers
2026-08-05 15:58:25 -07:00
committed by Dennis Kobert
parent ea6f45ddc0
commit f8975b7d94
25 changed files with 817 additions and 120 deletions

View File

@@ -11,7 +11,7 @@ use math_parser::value::{Number, Value};
use rand::{Rng, SeedableRng};
use std::ops::{Add, Mul, Rem, Sub};
use vector_types::Gradient;
use vector_types::markers::{GradientForm as GradientFormAttr, GradientSpread as GradientSpreadAttr};
use vector_types::markers::{GradientForm as GradientFormAttr, GradientInterpolation as GradientInterpolationAttr, GradientSpread as GradientSpreadAttr};
/// The struct that stores the context for the maths parser.
/// This is currently just limited to supplying `a` and `b` until we add better node graph support and UI for variadic inputs.
@@ -1214,12 +1214,18 @@ fn gradient_spread(_: impl Ctx, gradient: Gradient, gradient_spread: vector_type
(gradient, Attr(gradient_spread))
}
/// Sets the color space each gradient in the input list blends between its stops with: linear light or gamma-encoded sRGB.
#[node_macro::node(category("Gradient"))]
fn gradient_interpolation(_: impl Ctx, gradient: Gradient, gradient_interpolation: vector_types::GradientInterpolation) -> (Gradient, Attr<GradientInterpolationAttr>) {
(gradient, Attr(gradient_interpolation))
}
/// Sets the position of each of a gradient's stops, a factor from 0 to 1 along the gradient.
///
/// A list shorter than the stop count repeats its last value, a longer list is truncated, and an empty list sets each stop to its default evenly spaced position.
#[node_macro::node(category("Gradient"))]
fn gradient_positions(_: impl Ctx, mut gradient: Gradient, positions: IList<f64>) -> Gradient {
let positions: Vec<f64> = positions.iter().collect();
fn gradient_positions(_: impl Ctx, mut gradient: Gradient, positions: List<f64>) -> Gradient {
let positions: Vec<f64> = positions.iter_element_values().copied().collect();
gradient.set_positions(&positions);
gradient
}
@@ -1230,8 +1236,8 @@ fn gradient_positions(_: impl Ctx, mut gradient: Gradient, positions: IList<f64>
///
/// A list shorter than the stop count repeats its last value, a longer list is truncated, and an empty list sets each midpoint to its default of 0.5.
#[node_macro::node(category("Gradient"))]
fn gradient_midpoints(_: impl Ctx, mut gradient: Gradient, midpoints: IList<f64>) -> Gradient {
let midpoints: Vec<f64> = midpoints.iter().collect();
fn gradient_midpoints(_: impl Ctx, mut gradient: Gradient, midpoints: List<f64>) -> Gradient {
let midpoints: Vec<f64> = midpoints.iter_element_values().copied().collect();
gradient.set_midpoints(&midpoints);
gradient
}