dont overcomplicate things

src/main/java/me/cortex/voxy/client/core/rendering/util/HiZBuffer.java

@@ -128,6 +128,6 @@ public class HiZBuffer {
     }
 
     public int getPackedLevels() {
-        return ((Integer.numberOfTrailingZeros(this.width))<<16)|(Integer.numberOfTrailingZeros(this.height));//+1
+        return (this.width<<16)|this.height;//+1
     }
 }

src/main/resources/assets/voxy/shaders/lod/hierarchical/screenspace.glsl

@@ -128,7 +128,7 @@ bool outsideFrustum() {
 }
 
 bool isCulledByHiz() {
-    ivec2 ssize = ivec2(1)<<ivec2((packedHizSize>>16)&0xFFFF,packedHizSize&0xFFFF);
+    ivec2 ssize = ivec2(packedHizSize>>16,packedHizSize&0xFFFF);
     vec2 size = (maxBB.xy-minBB.xy)*ssize;
     float miplevel = log2(max(max(size.x, size.y),1));
 

src/main/resources/assets/voxy/shaders/lod/hierarchical/traversal_dev.comp

@@ -10,7 +10,7 @@ layout(local_size_x=LOCAL_SIZE) in;//, local_size_y=1
 layout(binding = SCENE_UNIFORM_BINDING, std140) uniform SceneUniform {
     mat4 VP;
     ivec3 camSecPos;
-    int packedHizSize;
+    uint packedHizSize;
     vec3 camSubSecPos;
     float minSSS;
     Frustum frustum;