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Brush blend modes and erase/restore (#1261)

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* Made blit node numerically stable.

* Added blend mode parameter to brush strokes.

* Fixed difference blend mode.

* Added erase/restore blend modes.

* Added blend mode and draw mode widgets.

* Added comment explaining the ImageFrame.transform.

* Initial blit/blend version.

* Working version of erase/restore.

* Improved inlining for blend functions.

* Dsiable the blend mode selector in erase/draw mode.

* Fixed incorrect bounds calculation.

* Use factor instead of percentage for opacity

* Rearrange options bar widgets

* Tidy up blend modes

* Code review

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>
This commit is contained in:
Orson Peters
2023-06-02 21:59:55 +02:00
committed by Keavon Chambers
co-authored by Keavon Chambers
parent 4e1bfddcd8
commit 5558deba5e
13 changed files with 397 additions and 153 deletions
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node-graph/gcore/src/raster/bbox.rs
+9
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@@ -65,6 +65,15 @@ impl Bbox {
}
}
pub fn from_transform(transform: DAffine2) -> Self {
Self {
top_left: transform.transform_point2(DVec2::new(0., 1.)),
top_right: transform.transform_point2(DVec2::new(1., 1.)),
bottom_left: transform.transform_point2(DVec2::new(0., 0.)),
bottom_right: transform.transform_point2(DVec2::new(1., 0.)),
}
}
pub fn affine_transform(self, transform: DAffine2) -> Self {
Self {
top_left: transform.transform_point2(self.top_left),