Files
Graphite/node-graph/nodes/blending/src/lib.rs
2026-08-22 14:32:15 +00:00

66 lines
2.8 KiB
Rust

use core_types::attribute::{Attr, BlendMode as BlendModeAttr, ClippingMask, Opacity, OpacityFill};
use core_types::registry::types::Percentage;
use core_types::{BlendMode, Ctx};
/// Applies the blend mode to the input graphics. Setting this allows for customizing how overlapping content is composited together.
#[node_macro::node(category("Blending"))]
fn blend_mode<T>(
_: impl Ctx,
/// The layer stack that will be composited when rendering.
(element, _content_blend_mode): (T, Attr<BlendModeAttr>),
/// The choice of equation that controls how brightness and color blends between overlapping pixels.
blend_mode: BlendMode,
) -> (T, Attr<BlendModeAttr>) {
(element, Attr(blend_mode))
}
/// Modifies the opacity and/or fill of the input graphics by multiplying the existing values by these percentages.
/// Opacity affects the transparency of the content (together with anything above which is clipped to it).
/// Fill affects the transparency of the content itself, independent of any content clipped to it.
#[node_macro::node(category("Blending"))]
fn opacity<T>(
_: impl Ctx,
/// The layer stack that will be composited when rendering.
(element, content_opacity, content_fill): (T, Attr<Opacity>, Attr<OpacityFill>),
/// Whether the *Opacity* property is enabled, multiplying the existing opacity by the chosen percentage.
#[widget(ParsedWidgetOverride::Hidden)]
#[default(true)]
has_opacity: bool,
/// How visible the content should be, including any content clipped to it.
/// Ranges from the default of 100% (fully opaque) to 0% (fully transparent).
#[widget(ParsedWidgetOverride::Custom = "optional_percentage")]
#[default(100.)]
opacity: Percentage,
/// Whether the *Fill* property is enabled, multiplying the existing fill by the chosen percentage.
#[widget(ParsedWidgetOverride::Hidden)]
has_fill: bool,
/// How visible the content should be, independent of any content clipped to it.
/// Ranges from 0% (fully transparent) to the default of 100% (fully opaque).
#[widget(ParsedWidgetOverride::Custom = "optional_percentage")]
#[default(100.)]
fill: Percentage,
) -> (T, Attr<Opacity>, Attr<OpacityFill>) {
let opacity = match has_opacity {
true => *content_opacity * (opacity / 100.),
false => *content_opacity,
};
let fill = match has_fill {
true => *content_fill * (fill / 100.),
false => *content_fill,
};
(element, Attr(opacity), Attr(fill))
}
/// Sets whether the input graphics inherit the alpha of the content beneath them, "clipping" them to that content.
#[node_macro::node(category("Blending"))]
fn clipping_mask<T>(
_: impl Ctx,
/// The layer stack that will be composited when rendering.
(element, _content_clip): (T, Attr<ClippingMask>),
/// Whether the content inherits the alpha of the content beneath it.
clip: bool,
) -> (T, Attr<ClippingMask>) {
(element, Attr(clip))
}