3 files changed, 45 insertions, 1 deletions
diff --git a/src/main/java/cc/polyfrost/oneconfig/internal/OneConfig.java b/src/main/java/cc/polyfrost/oneconfig/internal/OneConfig.java
index 13e34ff..479192d 100644
--- a/src/main/java/cc/polyfrost/oneconfig/internal/OneConfig.java
+++ b/src/main/java/cc/polyfrost/oneconfig/internal/OneConfig.java
@@ -36,7 +36,7 @@ public class OneConfig {
     public static void preLaunch() {
         if (preLaunched) return;
         try {
-            OneConfig.class.getResourceAsStream("net/minecraft/world/World");
+            Class.forName("net.minecraft.world.World");
             LOGGER.warn("OneConfig is NOT obfuscated!");
             isObfuscated = false;
         } catch (Exception ignored) {
diff --git a/src/main/java/cc/polyfrost/oneconfig/internal/mixin/OptifineConfigMixin.java b/src/main/java/cc/polyfrost/oneconfig/internal/mixin/OptifineConfigMixin.java
new file mode 100644
index 0000000..bc1d400
--- /dev/null
+++ b/src/main/java/cc/polyfrost/oneconfig/internal/mixin/OptifineConfigMixin.java
@@ -0,0 +1,21 @@
+package cc.polyfrost.oneconfig.internal.mixin;
+
+import cc.polyfrost.oneconfig.internal.plugin.OptifineConfigHook;
+import org.spongepowered.asm.mixin.Dynamic;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Pseudo;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Pseudo
+@Mixin(targets = "Config", remap = false)
+public class OptifineConfigMixin {
+    @Dynamic("OptiFine")
+    @Inject(method = "isFastRender", at = @At("HEAD"), cancellable = true)
+    private static void cancelFastRender(CallbackInfoReturnable<Boolean> cir) {
+        if (OptifineConfigHook.shouldNotApplyFastRender()) {
+            cir.setReturnValue(false);
+        }
+    }
+}
diff --git a/src/main/java/cc/polyfrost/oneconfig/internal/plugin/OptifineConfigHook.java b/src/main/java/cc/polyfrost/oneconfig/internal/plugin/OptifineConfigHook.java
new file mode 100644
index 0000000..69d1f2e
--- /dev/null
+++ b/src/main/java/cc/polyfrost/oneconfig/internal/plugin/OptifineConfigHook.java
@@ -0,0 +1,23 @@
+package cc.polyfrost.oneconfig.internal.plugin;
+
+import cc.polyfrost.oneconfig.gui.OneConfigGui;
+import cc.polyfrost.oneconfig.libs.universal.UScreen;
+import cc.polyfrost.oneconfig.utils.gui.GuiUtils;
+import net.minecraft.client.gui.GuiScreen;
+
+import java.util.Optional;
+
+public class OptifineConfigHook {
+
+    public static boolean shouldNotApplyFastRender() {
+        if (UScreen.getCurrentScreen() instanceof OneConfigGui) {
+            return true;
+        }
+        for (Optional<GuiScreen> screen : GuiUtils.getScreenQueue()) {
+            if (screen.isPresent() && screen.get() instanceof OneConfigGui) {
+                return true;
+            }
+        }
+        return false;
+    }
+}