fix(raw): enable camera white balance multipliers and fallback extraction to fix RAW color cast on Olympus and other bodies

docker/frontend/src/engine/rawDevelop.ts

@@ -72,7 +72,7 @@ const SETTINGS = {
   outputBps: 16,
   outputColor: 0,
   noAutoScale: true,
-  useCameraWb: false,
+  useCameraWb: true,
   noAutoBright: true,
   gamm: [1, 1] as [number, number],
   userQual: 3,
@@ -367,8 +367,13 @@ export async function developRaw(bytes: Uint8Array): Promise<Uint8Array> {
     const effect = Skia.RuntimeEffect.Make(RAW_DEVELOP_SKSL);
     if (!effect) throw new Error('develop shader failed to compile');
 
-    const green = cd.cam_mul[1] || 1;
-    const mul = cd.cam_mul.map((v) => v / green);
+    const rawMul = (cd?.cam_mul && cd.cam_mul.some((v: number) => v > 0 && v !== 1))
+      ? cd.cam_mul
+      : (cd?.pre_mul && cd.pre_mul.some((v: number) => v > 0))
+      ? cd.pre_mul
+      : [1, 1, 1, 1];
+    const green = rawMul[1] || rawMul[3] || 1;
+    const mul = rawMul.map((v: number) => v / green);
     const row = (i: number) => cd.rgb_cam[i].slice(0, 3);
     const [r0, r1, r2] = [row(0), row(1), row(2)];