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681b4033f5
* 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)
37 lines
1.2 KiB
Rust
37 lines
1.2 KiB
Rust
//! Not immediately shader compatible due to needing [`Gradient`] as a param, which needs [`Vec`]
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use crate::adjust::Adjust;
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use core_types::list::Item;
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use core_types::{Color, Ctx};
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use raster_types::{CPU, Raster};
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use vector_types::Gradient;
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// Aims for interoperable compatibility with:
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// https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/#:~:text=%27grdm%27%20%3D%20Gradient%20Map
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// https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/#:~:text=Gradient%20settings%20(Photoshop%206.0)
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#[node_macro::node(category("Raster: Adjustment"))]
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async fn gradient_map<T: Adjust<Color> + Send>(
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_: impl Ctx,
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#[implementations(
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Raster<CPU>,
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Color,
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Gradient,
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)]
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image: Item<T>,
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#[default(Color::BLACK, Color::WHITE)] gradient: Item<Gradient>,
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reverse: Item<bool>,
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) -> Item<T> {
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let mut image = image;
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let settings = vector_types::GradientSettings::from(&gradient);
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let evaluator = gradient.into_element().evaluator(settings);
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let reverse = reverse.into_element();
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image.element_mut().adjust(|color| {
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let intensity = color.luminance_rec_709();
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let intensity = if reverse { 1. - intensity } else { intensity };
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evaluator.evaluate(intensity as f64)
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});
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image
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}
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