Use libblur for faster post processing

Cargo.lock

@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "ab_glyph"
@@ -1119,6 +1119,18 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b6a852b24ab71dffc585bcb46eaf7959d175cb865a7152e35b348d1b2960422"
 
+[[package]]
+name = "colorutils-rs"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c06bb7c7479a238be740a3312b5693d76e234eb49b73b3e61ae768132c79d06a"
+dependencies = [
+ "erydanos",
+ "half",
+ "num-traits",
+ "rayon",
+]
+
 [[package]]
 name = "com"
 version = "0.6.0"
@@ -1747,6 +1759,15 @@ version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a0474425d51df81997e2f90a21591180b38eccf27292d755f3e30750225c175b"
 
+[[package]]
+name = "erydanos"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a47baa8d6403c503aada20928019931ed367ed226ec0916f27c6a0d3af86c559"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "event-listener"
 version = "2.5.3"
@@ -2249,6 +2270,7 @@ checksum = "6dd08c532ae367adf81c312a4580bc67f1d0fe8bc9c460520283f4c0ff277888"
 dependencies = [
  "cfg-if",
  "crunchy",
+ "num-traits",
 ]
 
 [[package]]
@@ -2630,10 +2652,23 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "03087c2bad5e1034e8cace5926dec053fb3790248370865f5117a7d0213354c8"
 
 [[package]]
-name = "libc"
-version = "0.2.155"
+name = "libblur"
+version = "0.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
+checksum = "ad0f76a47545e28b618fb7acff7d0c5b0850fe6374e2de43cfa65ac32948c0ed"
+dependencies = [
+ "colorutils-rs",
+ "half",
+ "libc",
+ "num-traits",
+ "rayon",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.169"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
 
 [[package]]
 name = "libfuzzer-sys"
@@ -2892,6 +2927,7 @@ dependencies = [
  "image 0.25.1",
  "imageproc",
  "itertools 0.13.0",
+ "libblur",
  "nalgebra 0.32.6",
  "notify-rust",
  "open",

Cargo.toml

@@ -16,14 +16,15 @@ criterion = "0.5.1"
 dirs = "5.0.1"
 eframe = { version = "0.27.2", features = ["wgpu", "serde"] }
 egui = "0.27.2"
-egui_dock = "0.12.0"
-egui_tracing = "0.2.2"
 egui-phosphor = { git = "https://github.com/connorslade/egui-phosphor" }
 egui-wgpu = "0.27.2"
+egui_dock = "0.12.0"
+egui_tracing = "0.2.2"
 encase = { version = "0.8.0", features = ["nalgebra"] }
 image = "0.25.1"
 imageproc = "0.25.0"
 itertools = "0.13.0"
+libblur = "0.15.1"
 md5 = "0.7.0"
 nalgebra = { version = "0.32.6", features = ["serde-serialize"] }
 notify-rust = "4.11.0"

TODO.md

@@ -89,6 +89,6 @@
 - [ ] Make post processing async
 - [ ] Instance meshes in save files / rendering
 - [x] Allow recalculating normals
-- [ ] Cleanup self intersection resolution
+- [x] Cleanup self intersection resolution
 - [ ] Dont fail to load an stl without normals
-- [ ] Dont clone all verts and faces to recompute normals. Just add another Arc?
+- [ ] GPU accalration for post processing effect?

mslicer/Cargo.toml

@@ -12,15 +12,16 @@ clone-macro.workspace = true
 const_format.workspace = true
 dirs.workspace = true
 eframe.workspace = true
-egui_dock.workspace = true
-egui_tracing.workspace = true
 egui-phosphor.workspace = true
 egui-wgpu.workspace = true
 egui.workspace = true
+egui_dock.workspace = true
+egui_tracing.workspace = true
 encase.workspace = true
 image.workspace = true
 imageproc.workspace = true
 itertools.workspace = true
+libblur.workspace = true
 nalgebra.workspace = true
 notify-rust.workspace = true
 open.workspace = true
@@ -29,8 +30,8 @@ plexus.workspace = true
 rand.workspace = true
 rayon.workspace = true
 rfd.workspace = true
-serde_json.workspace = true
 serde.workspace = true
+serde_json.workspace = true
 toml.workspace = true
 tracing-subscriber.workspace = true
 tracing.workspace = true

mslicer/src/plugins/anti_alias.rs

@@ -1,4 +1,5 @@
 use egui::{Context, Ui};
+use libblur::{EdgeMode, FastBlurChannels, ThreadingPolicy};
 use rayon::iter::{ParallelBridge, ParallelIterator};
 use slicer::format::FormatSliceFile;
 
@@ -32,7 +33,17 @@ impl Plugin for AntiAliasPlugin {
         }
 
         file.iter_mut_layers().par_bridge().for_each(|mut layer| {
-            *layer = imageproc::filter::gaussian_blur_f32(&layer, self.radius);
+            let (width, height) = (layer.width(), layer.height());
+            libblur::fast_gaussian_next(
+                &mut layer,
+                width,
+                width,
+                height,
+                self.radius as u32,
+                FastBlurChannels::Plane,
+                ThreadingPolicy::Adaptive,
+                EdgeMode::Clamp,
+            );
         });
     }
 }