From 920d7db5f688fb2e87228d9b2411c41fb536cfc2 Mon Sep 17 00:00:00 2001
From: mcrcortex <18544518+MCRcortex@users.noreply.github.com>
Date: Tue, 2 Sep 2025 03:00:06 +1000
Subject: [PATCH] optionally disable emission to vanilla depth

---
 .../voxy/client/core/IrisVoxyRenderPipeline.java     | 12 +++++++-----
 .../me/cortex/voxy/client/iris/IrisShaderPatch.java  |  7 ++++++-
 .../voxy/client/iris/IrisVoxyRenderPipelineData.java |  2 ++
 3 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/src/main/java/me/cortex/voxy/client/core/IrisVoxyRenderPipeline.java b/src/main/java/me/cortex/voxy/client/core/IrisVoxyRenderPipeline.java
index 36557db0..e64dbe0d 100644
--- a/src/main/java/me/cortex/voxy/client/core/IrisVoxyRenderPipeline.java
+++ b/src/main/java/me/cortex/voxy/client/core/IrisVoxyRenderPipeline.java
@@ -130,11 +130,13 @@ public class IrisVoxyRenderPipeline extends AbstractRenderPipeline {
 
     @Override
     protected void finish(Viewport<?> viewport, int sourceFrameBuffer) {
-        glColorMask(false, false, false, false);
-        AbstractRenderPipeline.transformBlitDepth(this.depthBlit,
-                this.fbTranslucent.getDepthTex().id, sourceFrameBuffer,
-                viewport, new Matrix4f(viewport.vanillaProjection).mul(viewport.modelView));
-        glColorMask(true, true, true, true);
+        if (this.data.renderToVanillaDepth) {
+            glColorMask(false, false, false, false);
+            AbstractRenderPipeline.transformBlitDepth(this.depthBlit,
+                    this.fbTranslucent.getDepthTex().id, sourceFrameBuffer,
+                    viewport, new Matrix4f(viewport.vanillaProjection).mul(viewport.modelView));
+            glColorMask(true, true, true, true);
+        }
     }
 
 
diff --git a/src/main/java/me/cortex/voxy/client/iris/IrisShaderPatch.java b/src/main/java/me/cortex/voxy/client/iris/IrisShaderPatch.java
index bc831b05..3a0b9685 100644
--- a/src/main/java/me/cortex/voxy/client/iris/IrisShaderPatch.java
+++ b/src/main/java/me/cortex/voxy/client/iris/IrisShaderPatch.java
@@ -23,6 +23,7 @@ public class IrisShaderPatch {
 
     public static final boolean IMPERSONATE_DISTANT_HORIZONS = System.getProperty("voxy.impersonateDHShader", "false").equalsIgnoreCase("true");
 
+
     private static final class SSBODeserializer implements JsonDeserializer<Int2ObjectOpenHashMap<String>> {
         @Override
         public Int2ObjectOpenHashMap<String> deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
@@ -116,7 +117,7 @@ public class IrisShaderPatch {
         public Int2ObjectOpenHashMap<String> ssbos;
         @JsonAdapter(BlendStateDeserializer.class)
         public Int2ObjectOpenHashMap<BlendState> blending;
-
+        public boolean excludeLodsFromVanillaDepth;
         public boolean checkValid() {
             return this.opaqueDrawBuffers != null && this.translucentDrawBuffers != null && this.uniforms != null && this.opaquePatchData != null;
         }
@@ -163,6 +164,10 @@ public class IrisShaderPatch {
         return this.patchData.translucentDrawBuffers;
     }
 
+    public boolean emitToVanillaDepth() {
+        return !this.patchData.excludeLodsFromVanillaDepth;
+    }
+
     public Runnable createBlendSetup() {
         if (this.patchData.blending == null || this.patchData.blending.isEmpty()) {
             return ()->{};//No blending change
diff --git a/src/main/java/me/cortex/voxy/client/iris/IrisVoxyRenderPipelineData.java b/src/main/java/me/cortex/voxy/client/iris/IrisVoxyRenderPipelineData.java
index 93e81b4d..31872c22 100644
--- a/src/main/java/me/cortex/voxy/client/iris/IrisVoxyRenderPipelineData.java
+++ b/src/main/java/me/cortex/voxy/client/iris/IrisVoxyRenderPipelineData.java
@@ -46,6 +46,7 @@ public class IrisVoxyRenderPipelineData {
     private final Runnable blendingSetup;
     private final ImageSet imageSet;
     private final SSBOSet ssboSet;
+    public final boolean renderToVanillaDepth;
     private IrisVoxyRenderPipelineData(IrisShaderPatch patch, int[] opaqueDrawTargets, int[] translucentDrawTargets, StructLayout uniformSet, Runnable blendingSetup, ImageSet imageSet, SSBOSet ssboSet) {
         this.opaqueDrawTargets = opaqueDrawTargets;
         this.translucentDrawTargets = translucentDrawTargets;
@@ -55,6 +56,7 @@ public class IrisVoxyRenderPipelineData {
         this.blendingSetup = blendingSetup;
         this.imageSet = imageSet;
         this.ssboSet = ssboSet;
+        this.renderToVanillaDepth = patch.emitToVanillaDepth();
     }
 
     public SSBOSet getSsboSet() {