sodium extra culling

build.gradle

@@ -124,6 +124,8 @@ dependencies {
 
     //modCompileOnly("maven.modrinth:immersiveportals:v5.1.7-mc1.20.4")
 
+    modCompileOnly("maven.modrinth:sodium-extra:mc1.21.10-0.7.1+fabric")
+    modRuntimeOnlyMsk("maven.modrinth:sodium-extra:mc1.21.10-0.7.1+fabric")
 
     modCompileOnly("maven.modrinth:chunky:1.4.40-fabric")
     //modRuntimeOnlyMsk("maven.modrinth:chunky:1.4.40-fabric")

src/main/java/me/cortex/voxy/client/compat/SodiumExtra.java

@@ -0,0 +1,18 @@
+package me.cortex.voxy.client.compat;
+
+import me.flashyreese.mods.sodiumextra.client.SodiumExtraClientMod;
+import net.fabricmc.loader.api.FabricLoader;
+
+public class SodiumExtra {
+    public static final boolean HAS_SODIUM_EXTRA = FabricLoader.getInstance().isModLoaded("sodium-extra");
+    public static boolean useSodiumExtraCulling() {
+        if (!HAS_SODIUM_EXTRA) {
+            return false;
+        }
+        return useSodiumExtraCulling0();
+    }
+
+    private static boolean useSodiumExtraCulling0() {
+        return !SodiumExtraClientMod.options().renderSettings.globalFog;
+    }
+}

src/main/java/me/cortex/voxy/client/core/rendering/ChunkBoundRenderer.java

@@ -2,6 +2,8 @@ package me.cortex.voxy.client.core.rendering;
 
 import it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap;
 import it.unimi.dsi.fastutil.longs.LongOpenHashSet;
+import me.cortex.voxy.client.VoxyClient;
+import me.cortex.voxy.client.compat.SodiumExtra;
 import me.cortex.voxy.client.core.AbstractRenderPipeline;
 import me.cortex.voxy.client.core.gl.GlBuffer;
 import me.cortex.voxy.client.core.gl.GlVertexArray;
@@ -54,6 +56,7 @@ public class ChunkBoundRenderer {
         this.rasterShader = Shader.makeAuto()
                 .addSource(ShaderType.VERTEX, vert)
                 .defineIf("TAA", taa != null)
+                .defineIf("USE_SODIUM_EXTRA_CULLING", SodiumExtra.useSodiumExtraCulling())
                 .add(ShaderType.FRAGMENT, "voxy:chunkoutline/outline.fsh")
                 .compile()
                 .ubo(0, this.uniformBuffer)

src/main/resources/assets/voxy/shaders/chunkoutline/outline.vsh

@@ -15,8 +15,19 @@ ivec3 unpackPos(ivec2 pos) {
 }
 
 bool shouldRender(ivec3 icorner) {
-    vec3 corner = vec3(mix(mix(ivec3(0), icorner-1, greaterThan(icorner-1, ivec3(0))), icorner+17, lessThan(icorner+17, ivec3(0))))-negInnerSec.xyz;
+    #ifdef USE_SODIUM_EXTRA_CULLING
-    return (corner.x*corner.x + corner.z*corner.z < negInnerSec.w*negInnerSec.w) && abs(corner.y) < negInnerSec.w;
+    #define MIN 0
+    #define MAX 16
+    #else
+    #define MIN 1
+    #define MAX 17
+    #endif
+    vec3 corner = vec3(mix(mix(ivec3(0), icorner-MIN, greaterThan(icorner-MIN, ivec3(0))), icorner+MAX, lessThan(icorner+MAX, ivec3(0))))-negInnerSec.xyz;
+    bool visible = (corner.x*corner.x + corner.z*corner.z) < (negInnerSec.w*negInnerSec.w);
+    #ifndef USE_SODIUM_EXTRA_CULLING
+    visible = visible && abs(corner.y) < negInnerSec.w;
+    #endif
+    return visible;
 }
 
 #ifdef TAA