2 files changed, 38 insertions, 21 deletions

diff --git a/src/main/java/makamys/lodmod/renderer/LODChunk.java b/src/main/java/makamys/lodmod/renderer/LODChunk.java
index d929306..1e49406 100644
--- a/src/main/java/makamys/lodmod/renderer/LODChunk.java
+++ b/src/main/java/makamys/lodmod/renderer/LODChunk.java
@@ -19,6 +19,8 @@ public class LODChunk {
 	SimpleChunkMesh[] simpleMeshes = new SimpleChunkMesh[2];
 	ChunkMesh[] chunkMeshes = new ChunkMesh[32];
 	
+	public boolean[] hidden = new boolean[16];
+	
 	LODRenderer renderer = LODMod.renderer;
 	
 	public LODChunk(int x, int z) {
@@ -56,7 +58,6 @@ public class LODChunk {
 		    ChunkMesh newChunkMesh = newChunkMeshes.size() > i ? newChunkMeshes.get(i) : null;
 		    if(chunkMeshes[cy * 2 + i] != null) {
 			    if(newChunkMesh != null) {
-			        renderer.setMeshVisible(newChunkMesh, chunkMeshes[cy * 2 + i].visible);
 			        newChunkMesh.pass = i;
 			    }
 			    
@@ -65,6 +66,7 @@ public class LODChunk {
 			}
 		    chunkMeshes[cy * 2 + i] = newChunkMesh;
 		}
+		LODMod.renderer.lodChunkChanged(this);
 	}
 	
 	// nice copypasta
@@ -73,7 +75,6 @@ public class LODChunk {
             SimpleChunkMesh newSimpleMesh = newSimpleMeshes.size() > i ? newSimpleMeshes.get(i) : null;
             if(simpleMeshes[i] != null) {
                 if(newSimpleMesh != null) {
-                    renderer.setMeshVisible(newSimpleMesh, simpleMeshes[i].visible);
                     newSimpleMesh.pass = i;
                 }
                 
@@ -82,6 +83,7 @@ public class LODChunk {
             }
             simpleMeshes[i] = newSimpleMesh;
         }
+	    LODMod.renderer.lodChunkChanged(this);
 	}
 	
 	public boolean hasChunkMeshes() {
@@ -136,4 +138,18 @@ public class LODChunk {
 	    putSimpleMeshes(SimpleChunkMesh.generateSimpleMeshes(chunk));
 	}
 	
+	public boolean isFullyVisible() {
+	    if(!visible) return false;
+	    for(boolean b : hidden) {
+	        if(b) {
+	            return false;
+	        }
+	    }
+	    return true;
+	}
+	
+	public boolean isSubchunkVisible(int y) {
+	    return !hidden[y];
+	}
+	
 }
diff --git a/src/main/java/makamys/lodmod/renderer/LODRenderer.java b/src/main/java/makamys/lodmod/renderer/LODRenderer.java
index 3a0ff9d..de294b3 100644
--- a/src/main/java/makamys/lodmod/renderer/LODRenderer.java
+++ b/src/main/java/makamys/lodmod/renderer/LODRenderer.java
@@ -431,13 +431,11 @@ public class LODRenderer {
         LODChunk lodChunk = getLODChunk(x, z);
         
         if(visible) {
-            setMeshVisible(lodChunk.chunkMeshes[y * 2 + 0], false);
-            setMeshVisible(lodChunk.chunkMeshes[y * 2 + 1], false);
-            setMeshVisible(lodChunk.simpleMeshes[0], false);
-            setMeshVisible(lodChunk.simpleMeshes[1], false);
+            lodChunk.hidden[y] = true;
+            lodChunkChanged(lodChunk);
         } else {
-            setMeshVisible(lodChunk.chunkMeshes[y * 2 + 0], true);
-            setMeshVisible(lodChunk.chunkMeshes[y * 2 + 1], true);
+            lodChunk.hidden[y] = false;
+            lodChunkChanged(lodChunk);
         }
 	}
 	
@@ -518,7 +516,7 @@ public class LODRenderer {
 		int newLOD = (!lodChunk.hasChunkMeshes() && lodChunk.lod == 2) ? 1 : lodChunk.lod;
 		for(SimpleChunkMesh sm : lodChunk.simpleMeshes) {
 		    if(sm != null) {
-		        if(lodChunk.visible && newLOD == 1) {
+		        if(lodChunk.isFullyVisible() && newLOD == 1) {
 	                if(!sm.visible) {
 	                    setMeshVisible(sm, true);
 	                }
@@ -529,18 +527,21 @@ public class LODRenderer {
 	            }
 		    }
 		}
-		for(ChunkMesh cm : lodChunk.chunkMeshes) {
-			if(cm != null) {
-				if(lodChunk.visible && newLOD == 2) {
-					if(!cm.visible) {
-						setMeshVisible(cm, true);
-					}
-				} else {
-					if(cm.visible) {
-						setMeshVisible(cm, false);
-					}
-				}
-			}
+		for(int y = 0; y < 16; y++) {
+		    for(int pass = 0; pass < 2; pass++) {
+		        ChunkMesh cm = lodChunk.chunkMeshes[y * 2 + pass];
+		        if(cm != null) {
+	                if(lodChunk.isSubchunkVisible(y) && newLOD == 2) {
+	                    if(!cm.visible) {
+	                        setMeshVisible(cm, true);
+	                    }
+	                } else {
+	                    if(cm.visible) {
+	                        setMeshVisible(cm, false);
+	                    }
+	                }
+	            }
+		    }
 		}
 	}