Fixed flicker

Author: MCRcortex

src/main/java/me/cortex/voxy/client/core/rendering/AbstractFarWorldRenderer.java

@@ -59,6 +59,8 @@ public abstract class AbstractFarWorldRenderer <T extends Viewport> {
 
     private final List<T> viewports = new ArrayList<>();
 
+    protected IntArrayList updatedSectionIds;
+
     private final ConcurrentLinkedDeque<Mapper.StateEntry> blockStateUpdates = new ConcurrentLinkedDeque<>();
     private final ConcurrentLinkedDeque<Mapper.BiomeEntry> biomeUpdates = new ConcurrentLinkedDeque<>();
     public AbstractFarWorldRenderer(int geometrySize, int maxSections) {
@@ -96,7 +98,7 @@ public void setupRender(Frustum frustum, Camera camera) {
         }
 
         //Upload any new geometry
-        this.geometry.uploadResults();
+        this.updatedSectionIds = this.geometry.uploadResults();
         {
             boolean didHaveBiomeChange = false;
 

src/main/java/me/cortex/voxy/client/core/rendering/Gl46FarWorldRenderer.java

@@ -29,8 +29,8 @@
 import static org.lwjgl.opengl.GL42.GL_FRAMEBUFFER_BARRIER_BIT;
 import static org.lwjgl.opengl.GL43.*;
 import static org.lwjgl.opengl.GL43.GL_SHADER_STORAGE_BUFFER;
-import static org.lwjgl.opengl.GL45C.glBindTextureUnit;
-import static org.lwjgl.opengl.GL45C.glClearNamedBufferData;
+import static org.lwjgl.opengl.GL45.glBindTextureUnit;
+import static org.lwjgl.opengl.GL45.glClearNamedBufferData;
 
 public class Gl46FarWorldRenderer extends AbstractFarWorldRenderer<Gl46Viewport> {
     private final Shader commandGen = Shader.make()
@@ -104,6 +104,13 @@ public void renderFarAwayOpaque(Gl46Viewport viewport) {
             return;
         }
 
+        {//Mark all of the updated sections as being visible from last frame
+            for (int id : this.updatedSectionIds) {
+                long ptr = UploadStream.INSTANCE.upload(viewport.visibilityBuffer, id * 4L, 4);
+                MemoryUtil.memPutInt(ptr, viewport.frameId - 1);//(visible from last frame)
+            }
+        }
+
         glDisable(GL_BLEND);
         glEnable(GL_DEPTH_TEST);