From 2829ddb0850d6688ec9d99b5dbd10ede2e4539ed Mon Sep 17 00:00:00 2001
From: mcrcortex <18544518+MCRcortex@users.noreply.github.com>
Date: Fri, 2 May 2025 16:13:30 +1000
Subject: [PATCH] b

---
 .../core/rendering/RenderDistanceTracker.java |  6 --
 .../rendering/util/SharedIndexBuffer.java     | 70 +++++++++++++++++++
 2 files changed, 70 insertions(+), 6 deletions(-)

diff --git a/src/main/java/me/cortex/voxy/client/core/rendering/RenderDistanceTracker.java b/src/main/java/me/cortex/voxy/client/core/rendering/RenderDistanceTracker.java
index 05e37967..a6caeaa2 100644
--- a/src/main/java/me/cortex/voxy/client/core/rendering/RenderDistanceTracker.java
+++ b/src/main/java/me/cortex/voxy/client/core/rendering/RenderDistanceTracker.java
@@ -36,12 +36,6 @@ public class RenderDistanceTracker {
     }
 
     public void setCenterAndProcess(double x, double z) {
-        //Do some very cheeky stuff for MiB
-        if (false) {
-            int sector = (((int)Math.floor(x)>>4)+512)>>10;
-            x -= sector<<14;//10+4
-        }
-
         double dx = this.posX-x;
         double dz = this.posZ-z;
         if (CHECK_DISTANCE_BLOCKS*CHECK_DISTANCE_BLOCKS<dx*dx+dz*dz) {
diff --git a/src/main/java/me/cortex/voxy/client/core/rendering/util/SharedIndexBuffer.java b/src/main/java/me/cortex/voxy/client/core/rendering/util/SharedIndexBuffer.java
index 5192fe50..503e1b09 100644
--- a/src/main/java/me/cortex/voxy/client/core/rendering/util/SharedIndexBuffer.java
+++ b/src/main/java/me/cortex/voxy/client/core/rendering/util/SharedIndexBuffer.java
@@ -10,6 +10,7 @@ public class SharedIndexBuffer {
     public static final int CUBE_INDEX_OFFSET = (1<<16)*6*2;
     public static final SharedIndexBuffer INSTANCE = new SharedIndexBuffer();
     public static final SharedIndexBuffer INSTANCE_BYTE = new SharedIndexBuffer(true);
+    public static final SharedIndexBuffer INSTANCE_BB_BYTE = new SharedIndexBuffer(true, true);
 
     private final GlBuffer indexBuffer;
 
@@ -40,6 +41,15 @@ public class SharedIndexBuffer {
         cubeBuff.free();
     }
 
+    private SharedIndexBuffer(boolean type2, boolean type3) {
+        this.indexBuffer = new GlBuffer(6*2*3*(256/8));
+        var cubeBuff = generateByteCubesIndexBuffer(256/8);
+
+        cubeBuff.cpyTo(UploadStream.INSTANCE.upload(this.indexBuffer, 0, this.indexBuffer.size()));
+        UploadStream.INSTANCE.commit();
+        cubeBuff.free();
+    }
+
     private static MemoryBuffer generateCubeIndexBuffer() {
         var buffer = new MemoryBuffer(6*2*3);
         long ptr = buffer.address;
@@ -96,6 +106,66 @@ public class SharedIndexBuffer {
         return buffer;
     }
 
+    private static MemoryBuffer generateByteCubesIndexBuffer(int cnt) {
+        var buffer = new MemoryBuffer((long) cnt *6*2*3);
+        long ptr = buffer.address;
+        MemoryUtil.memSet(ptr, 0, buffer.size);
+
+        for (int i = 0; i < cnt; i++) {
+            int j = i*8;
+
+            //Bottom face
+            MemoryUtil.memPutByte(ptr++, (byte) (0+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (1+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (2+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (3+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (2+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (1+j));
+
+            //top face
+            MemoryUtil.memPutByte(ptr++, (byte) (6+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (5+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (4+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (5+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (6+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (7+j));
+
+            //north face
+            MemoryUtil.memPutByte(ptr++, (byte) (0+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (4+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (1+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (5+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (1+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (4+j));
+
+            //south face
+            MemoryUtil.memPutByte(ptr++, (byte) (3+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (6+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (2+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (6+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (3+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (7+j));
+
+            //west face
+            MemoryUtil.memPutByte(ptr++, (byte) (2+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (4+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (0+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (4+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (2+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (6+j));
+
+            //east face
+            MemoryUtil.memPutByte(ptr++, (byte) (1+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (5+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (3+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (7+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (3+j));
+            MemoryUtil.memPutByte(ptr++, (byte) (5+j));
+        }
+
+        return buffer;
+    }
+
     public static MemoryBuffer generateQuadIndicesByte(int quadCount) {
         if ((quadCount*4) >= 1<<8) {
             throw new IllegalArgumentException("Quad count to large");