Add Optifine compatibility to rendering by disabling their separate chunk loading queue

Add compatibility to shaders that utilize the Shadow Map by manually setting displayListEntitiesDirty to false
Call Shaders.beginRender in an Event Handler to avoid calling all of EntityRenderer#renderWorld

src/main/java/com/replaymod/compat/shaders/mixin/MixinShaderRenderChunk.java

@@ -0,0 +1,28 @@
+package com.replaymod.compat.shaders.mixin;
+
+import com.replaymod.render.hooks.EntityRendererHandler;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.chunk.RenderChunk;
+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.CallbackInfoReturnable;
+
+@Mixin(RenderChunk.class)
+public abstract class MixinShaderRenderChunk {
+
+    private final Minecraft mc = Minecraft.getMinecraft();
+
+    /**
+     *  Changes the RenderChunk#isPlayerUpdate method that Optifine adds
+     *  to always return true while rendering so no chunks are being added
+     *  to a separate rendering queue
+     */
+    @Inject(method = "isPlayerUpdate", at = @At("HEAD"), cancellable = true)
+    private void replayModCompat_disableIsPlayerUpdate(CallbackInfoReturnable<Boolean> ci) {
+        if (((EntityRendererHandler.IEntityRenderer) mc.entityRenderer).replayModRender_getHandler() == null) return;
+        ci.setReturnValue(true);
+    }
+
+
+}