Fix #499

Author: kappa-maintainer

patches/minecraft/net/minecraft/client/renderer/BufferBuilder.java.patch

@@ -20,6 +20,28 @@
          this.rawIntBuffer.put(vertexData);
          this.vertexCount = this.vertexCount + vertexData.length / this.vertexFormat.getIntegerSize();
      }
+@@ -515,15 +517,15 @@
+                 break;
+             case USHORT:
+             case SHORT:
+-                this.byteBuffer.putShort(i, (short)((int)x * 32767 & 65535));
+-                this.byteBuffer.putShort(i + 2, (short)((int)y * 32767 & 65535));
+-                this.byteBuffer.putShort(i + 4, (short)((int)z * 32767 & 65535));
++                this.byteBuffer.putShort(i, (short)((int)(x * 32767) & 65535));
++                this.byteBuffer.putShort(i + 2, (short)((int)(y * 32767) & 65535));
++                this.byteBuffer.putShort(i + 4, (short)((int)(z * 32767) & 65535));
+                 break;
+             case UBYTE:
+             case BYTE:
+-                this.byteBuffer.put(i, (byte)((int)x * 127 & 0xFF));
+-                this.byteBuffer.put(i + 1, (byte)((int)y * 127 & 0xFF));
+-                this.byteBuffer.put(i + 2, (byte)((int)z * 127 & 0xFF));
++                this.byteBuffer.put(i, (byte)((int)(x * 127) & 0xFF));
++                this.byteBuffer.put(i + 1, (byte)((int)(y * 127) & 0xFF));
++                this.byteBuffer.put(i + 2, (byte)((int)(z * 127) & 0xFF));
+         }
+ 
+         this.nextVertexFormatIndex();
 @@ -613,5 +615,28 @@
          {
              return this.stateVertexFormat;