Start working on a transform editor

crates/flare-shader/src/lib.rs

@@ -158,15 +158,24 @@ impl ThreadState {
 #[derive(Copy, Clone, Debug, bytemuck::Pod, bytemuck::Zeroable)]
 #[repr(C)]
 pub struct Coefs {
-    a: f32,
-    b: f32,
-    c: f32,
-    d: f32,
-    e: f32,
-    f: f32,
+    pub a: f32,
+    pub b: f32,
+    pub c: f32,
+    pub d: f32,
+    pub e: f32,
+    pub f: f32,
 }
 
 impl Coefs {
+    pub const IDENTITY: Coefs = Coefs {
+        a: 1.0,
+        b: 0.0,
+        c: 0.0,
+        d: 0.0,
+        e: 1.0,
+        f: 0.0
+    };
+
     pub fn new(a: f32, b: f32, c: f32, d: f32, e: f32, f: f32) -> Self {
         Self { a, b, c, d, e, f }
     }