Update options

src/main/java/com/jozufozu/flywheel/backend/engine/uniform/Uniforms.java

@@ -29,6 +29,7 @@ public class Uniforms {
 	private static @Nullable UniformBuffer<OptionsUniforms> options;
 	private static @Nullable UniformBuffer<PlayerUniforms> player;
 	private static @Nullable UniformBuffer<LevelUniforms> level;
+	private static boolean optionsRequiresUpdate = false;
 
 	public static UniformBuffer<FrameUniforms> frame() {
 		if (frame == null) {
@@ -109,12 +110,20 @@ public class Uniforms {
 		}
 	}
 
+	public static void onOptionsUpdate() {
+		// this is sometimes called too early to do an actual update
+		optionsRequiresUpdate = true;
+	}
+
 	public static void updateContext(RenderContext ctx) {
 		var ubo = frame();
 		ubo.provider.setContext(ctx);
 		ubo.update();
 
-		options();
+		if (optionsRequiresUpdate) {
+			options().update();
+			optionsRequiresUpdate = false;
+		}
 
 		var player = player();
 		player.provider.setContext(ctx);

src/main/java/com/jozufozu/flywheel/backend/mixin/OptionsMixin.java

@@ -0,0 +1,23 @@
+package com.jozufozu.flywheel.backend.mixin;
+
+import com.jozufozu.flywheel.backend.engine.uniform.Uniforms;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import net.minecraft.client.Options;
+
+@Mixin(Options.class)
+public class OptionsMixin {
+	@Inject(method = "load()V", at = @At("RETURN"))
+	private void onLoad(CallbackInfo ci) {
+		Uniforms.onOptionsUpdate();
+	}
+
+	@Inject(method = "save", at = @At("HEAD"))
+	private void onSave(CallbackInfo ci) {
+		Uniforms.onOptionsUpdate();
+	}
+}

src/main/resources/flywheel.backend.mixins.json

@@ -9,6 +9,7 @@
     "GameRendererAccessor",
     "GlStateManagerMixin",
     "LightTextureAccessor",
+    "OptionsMixin",
     "OverlayTextureAccessor",
     "RenderSystemMixin"
   ],