From e1b4e1ea6a92c22ac17a2c0be7cff76d78c08c20 Mon Sep 17 00:00:00 2001
From: mcrcortex <18544518+MCRcortex@users.noreply.github.com>
Date: Sun, 22 Jun 2025 21:51:07 +1000
Subject: [PATCH] micro optimizations

---
 .../assets/voxy/shaders/lod/gl46/quads2.vert  | 20 ++++---------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/src/main/resources/assets/voxy/shaders/lod/gl46/quads2.vert b/src/main/resources/assets/voxy/shaders/lod/gl46/quads2.vert
index f2c072b8..e4bff7e1 100644
--- a/src/main/resources/assets/voxy/shaders/lod/gl46/quads2.vert
+++ b/src/main/resources/assets/voxy/shaders/lod/gl46/quads2.vert
@@ -52,29 +52,17 @@ vec4 getFaceSize(uint faceData) {
 
     vec4 faceOffsetsSizes = extractFaceSizes(faceData);
 
+    //Expand the quads by a very small amount (because of the subtraction after this also becomes an implicit add)
+    faceOffsetsSizes.xz -= vec2(EPSILON);
+
     //Make the end relative to the start
     faceOffsetsSizes.yw -= faceOffsetsSizes.xz;
 
-    //Expand the quads by a very small amount
-    faceOffsetsSizes.xz -= vec2(EPSILON);
-    faceOffsetsSizes.yw += vec2(EPSILON);
-
     return faceOffsetsSizes;
 }
 
-//TODO: make branchless by using ternaries i think
 vec3 swizzelDataAxis(uint axis, vec3 data) {
-    if (axis == 0) { //Up/down
-        data = data.xzy;
-    }
-    //Not needed, here for readability
-    //if (axis == 1) {//north/south
-    //    offset = offset.xyz;
-    //}
-    if (axis == 2) { //west/east
-        data = data.zxy;
-    }
-    return data;
+    return mix(mix(data.zxy,data.xzy,axis==0),data,axis==1);
 }
 
 uint extractDetail(uvec2 encPos) {