From 4a5f92fc3b322bcd10387b400f2a99d5cb84c316 Mon Sep 17 00:00:00 2001
From: Lucas Garron <code@garron.net>
Date: Sat, 30 Dec 2023 01:39:32 -0800
Subject: [PATCH] Hardcode the renderer color space to linear SRGB for now.

This is probably not "correct", but it fixes https://github.com/cubing/cubing.js/issues/307 until we can implement https://github.com/cubing/cubing.js/issues/308
---
 src/cubing/twisty/views/3D/RendererPool.ts   |  8 +++++++-
 src/cubing/twisty/views/3D/puzzles/Cube3D.ts | 17 ++++++++++-------
 2 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/src/cubing/twisty/views/3D/RendererPool.ts b/src/cubing/twisty/views/3D/RendererPool.ts
index 563bfdfb6..1d42702cf 100644
--- a/src/cubing/twisty/views/3D/RendererPool.ts
+++ b/src/cubing/twisty/views/3D/RendererPool.ts
@@ -12,7 +12,12 @@
 // const sharedRenderer: WebGLRenderer | null = null;
 
 import { THREEJS } from "../../heavy-code-imports/3d";
-import type { Camera, Scene, WebGLRenderer } from "three";
+import {
+  type Camera,
+  type Scene,
+  type WebGLRenderer,
+  LinearSRGBColorSpace,
+} from "three";
 import { pixelRatio } from "../canvas";
 
 const renderers: Promise<WebGLRenderer>[] = [];
@@ -66,6 +71,7 @@ export async function newRenderer(): Promise<WebGLRenderer> {
     antialias: true,
     alpha: true,
   });
+  renderer.outputColorSpace = LinearSRGBColorSpace; // TODO(https://github.com/cubing/cubing.js/issues/308): remove this
   renderer.setPixelRatio(pixelRatio());
   return renderer;
 }
diff --git a/src/cubing/twisty/views/3D/puzzles/Cube3D.ts b/src/cubing/twisty/views/3D/puzzles/Cube3D.ts
index ac286988e..156ae82b5 100644
--- a/src/cubing/twisty/views/3D/puzzles/Cube3D.ts
+++ b/src/cubing/twisty/views/3D/puzzles/Cube3D.ts
@@ -3,6 +3,7 @@ import {
   BoxGeometry,
   BufferAttribute,
   BufferGeometry,
+  Color,
   DoubleSide,
   Euler,
   FrontSide,
@@ -97,14 +98,16 @@ class AxisInfo {
     public hintOpacityScale: number, // TODO: make this work better across bright *and* dark backgrounds. Maybe tweak sticker compositing settings?
     options?: { hintColor?: number; hintDimColor?: number },
   ) {
+    const colorLinearSRGB = new Color(color).convertLinearToSRGB();
+    const dimColorLinearSRGB = new Color(dimColor).convertLinearToSRGB();
     // TODO: Make sticker material single-sided when cubie foundation is opaque?
     this.stickerMaterial = {
       regular: new MeshBasicMaterial({
-        color,
+        color: colorLinearSRGB,
         side: FrontSide, // TODO: set to `DoubleSide` when hint facelets are disabled.
       }),
       dim: new MeshBasicMaterial({
-        color: dimColor,
+        color: dimColorLinearSRGB,
         side: FrontSide, // TODO: set to `DoubleSide` when hint facelets are disabled.
       }),
       oriented: orientedMaterial,
@@ -144,10 +147,10 @@ const axesInfo: AxisInfo[] = [
   new AxisInfo(
     new Vector3(-1, 0, 0),
     new Euler(0, -TAU / 4, 0),
-    0xff8800,
-    0x884400,
+    0xff9900,
+    0x885500,
     1,
-    { hintDimColor: 0x996600 },
+    { hintDimColor: 0xcc8800 },
   ),
   new AxisInfo(
     new Vector3(0, 0, 1),
@@ -163,7 +166,7 @@ const axesInfo: AxisInfo[] = [
     0xff0000,
     0x660000,
     1,
-    { hintDimColor: 0x990000 },
+    { hintDimColor: 0xdd0000 },
   ),
   new AxisInfo(
     new Vector3(0, 0, -1),
@@ -179,7 +182,7 @@ const axesInfo: AxisInfo[] = [
     0xffff00,
     0x888800,
     1.25,
-    { hintDimColor: 0xbbbb00 },
+    { hintDimColor: 0xdddd00 },
   ),
 ];