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Add a gradient interpolation attribute with Stepped, Linear (existing), and Smooth modes (#4418)

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* Delete dead code function

* Add a Gradient Interpolation axis with Stepped, Linear, and Smooth paths through the stops

* Keep the gradient interpolation attached when dragging stops in the picker

* Give the gradient popover's dropdowns the same tooltips as their row labels

* Order the gradient popover with Intrp. above Space

* Hold gradient stops in place when the cyclic flag is toggled

* Fix wrong Smooth gradient colors around stops sitting on the ramp boundaries

* Consolidate gradient settings plumbing and fix bugs

* Bundle whole-ramp gradient settings into GradientSettings across the editor plumbing

* Name the Smooth gradient interpolation's spline type in its tooltip

* Linearize the gamma hex stop colors recovered from imported Graphite SVGs

* Code review

* Aim the Smooth bake's seam subdivision at the copied boundary color

* Add GradientEvaluator to build gradient sampling state once per loop instead of per sample

* Correct the gradient evaluator's documented setup cost to O(n log n)
This commit is contained in:
Keavon Chambers
2026-09-14 12:58:43 +02:00
committed by Dennis Kobert
parent 244a7e0f78
commit 6e32e97ba1
24 changed files with 1552 additions and 750 deletions
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node-graph/nodes/raster/src/blending_nodes.rs
+3 -3
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@@ -44,10 +44,10 @@ mod blend_std {
let mut combined_stops = self.positions(false).into_iter().chain(under.positions(false)).collect::<Vec<_>>();
combined_stops.sort_by(|a, b| a.partial_cmp(b).unwrap_or(Ordering::Equal));
combined_stops.dedup_by(|a, b| (*a - *b).abs() < 1e-6);
let over_evaluator = self.evaluator(Default::default());
let under_evaluator = under.evaluator(Default::default());
let stops = combined_stops.into_iter().map(|position| {
let over_color = self.evaluate(position, Default::default(), false, Default::default(), Default::default());
let under_color = under.evaluate(position, Default::default(), false, Default::default(), Default::default());
let color = blend_fn(over_color, under_color);
let color = blend_fn(over_evaluator.evaluate(position), under_evaluator.evaluate(position));
GradientStop { position, midpoint: 0.5, color }
});