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Add a "Cyclic" gradient option that closes the ramp into a seamless loop (#4416)

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* Add a Cyclic gradient attribute that wraps the stop list through the 1|0 boundary back to the first stop

* Show the wrap segment's midpoint diamond in the color picker spectrum strip when cyclic

* Keep the wrap midpoint diamond tracking the pointer by a wrapped strip width when dragged past the ends

* Give the Gradient tool's viewport overlay the same cyclic wrap midpoint diamond and drag behavior

* Correct the docs claiming the final stop's midpoint is always ignored now that cyclic uses it

* Move the gradient cyclic toggle onto the Ends row as a Link icon checkbox

* Update labels

* Register GradientHueDirection with the Data panel so its attribute column renders

* Reword wrap segment to wrapped interval and stray segment usages to interval

* Clean up comments

* Fix the color picker write-back losing default position elision and the blend path guessing the cyclic flag
This commit is contained in:
Keavon Chambers
2026-08-06 18:52:00 -07:00
committed by GitHub
parent 461ddbc872
commit 4b01abe36d
25 changed files with 863 additions and 257 deletions
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3
node-graph/nodes/raster/src/gradient_map.rs
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@@ -24,6 +24,7 @@ async fn gradient_map<T: Adjust<Color> + Send>(
let mut image = image;
let gradient_spread = gradient.attribute_cloned_or_default::<vector_types::GradientSpread>(core_types::ATTR_GRADIENT_SPREAD);
let gradient_space = gradient.attribute_cloned_or_default::<vector_types::GradientSpace>(core_types::ATTR_GRADIENT_SPACE);
let gradient_cyclic = gradient.attribute_cloned_or_default::<bool>(core_types::ATTR_GRADIENT_CYCLIC);
let gradient_hue_direction = gradient.attribute_cloned_or_default::<vector_types::GradientHueDirection>(core_types::ATTR_GRADIENT_HUE_DIRECTION);
let gradient = gradient.into_element();
let reverse = reverse.into_element();
@@ -31,7 +32,7 @@ async fn gradient_map<T: Adjust<Color> + Send>(
image.element_mut().adjust(|color| {
let intensity = color.luminance_rec_709();
let intensity = if reverse { 1. - intensity } else { intensity };
gradient.evaluate(intensity as f64, gradient_spread, gradient_space, gradient_hue_direction)
gradient.evaluate(intensity as f64, gradient_spread, gradient_cyclic, gradient_space, gradient_hue_direction)
});
image