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Add mix node

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This commit is contained in:
mtvare6
2025-06-05 06:28:22 +05:30
parent 76ecdc8f1b
commit 208f8e4d84
2 changed files with 31 additions and 1 deletions
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2
node-graph/gcore/src/raster/adjustments.rs
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@@ -646,7 +646,7 @@ async fn threshold<T: Adjust<Color>>(
image
}
trait Blend<P: Pixel> {
pub trait Blend<P: Pixel> {
fn blend(&self, under: &Self, blend_fn: impl Fn(P, P) -> P) -> Self;
}
impl Blend<Color> for Color {

30
node-graph/gstd/src/raster.rs
View File

@@ -6,6 +6,7 @@ use graphene_core::raster::image::{Image, ImageFrameTable};
use graphene_core::raster::{
Alpha, AlphaMut, Bitmap, BitmapMut, CellularDistanceFunction, CellularReturnType, DomainWarpType, FractalType, LinearChannel, Luminance, NoiseType, Pixel, RGBMut, Sample,
};
use graphene_core::raster::{BlendMode, blend_colors};
use graphene_core::transform::{Transform, TransformMut};
use graphene_core::{AlphaBlending, Color, Ctx, ExtractFootprint, GraphicElement, Node};
use rand::prelude::*;
@@ -191,6 +192,35 @@ where
image
}
#[node_macro::node(category("Raster"))]
async fn mix(ctx: impl Ctx + Clone, modified_image: ImageFrameTable<Color>, original_image: ImageFrameTable<Color>, mask: ImageFrameTable<Color>) -> ImageFrameTable<Color> {
let mut inverted_mask_table = mask.clone();
for instance_wrapper in inverted_mask_table.instance_mut_iter() {
for pixel_color in instance_wrapper.instance.data.iter_mut() {
let color = pixel_color.to_gamma_srgb();
let color = color.map_rgb(|c| color.a() - c);
*pixel_color = color.to_linear_srgb();
}
}
let background_layer_table = crate::raster::mask(ctx.clone(), original_image, inverted_mask_table);
let foreground_layer_table = crate::raster::mask(ctx.clone(), modified_image, mask);
let mut final_blended_table = foreground_layer_table.clone();
for (over_instance_wrapper, under_instance_wrapper) in final_blended_table.instance_mut_iter().zip(background_layer_table.instance_ref_iter()) {
let over_image_data = &mut over_instance_wrapper.instance.data;
let under_image_data = &under_instance_wrapper.instance.data;
if over_image_data.len() == under_image_data.len() {
for (over_pixel, under_pixel) in over_image_data.iter_mut().zip(under_image_data.iter()) {
*over_pixel = blend_colors(*over_pixel, *under_pixel, BlendMode::Normal, 1.);
}
}
}
final_blended_table
}
// #[derive(Debug, Clone, Copy)]
// pub struct BlendImageTupleNode<P, Fg, MapFn> {
// map_fn: MapFn,