From 2f9504b16768283cb9c1bb261a6409d3e19d71ef Mon Sep 17 00:00:00 2001
From: James Seibel <jeseibel@gondtc.com>
Date: Sat, 16 May 2026 17:54:30 -0500
Subject: [PATCH] fix reverseZDepth uniform name

---
 .../assets/distanthorizons/shaders/apply/blaze/frag.fsh   | 4 ++--
 .../assets/distanthorizons/shaders/fade/blaze/dh_fade.fsh | 4 ++--
 .../distanthorizons/shaders/fade/blaze/vanilla_fade.fsh   | 6 +++---
 .../assets/distanthorizons/shaders/fog/blaze/frag.fsh     | 4 ++--
 .../assets/distanthorizons/shaders/ssao/blaze/frag.fsh    | 8 ++++----
 5 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/core/src/main/resources/assets/distanthorizons/shaders/apply/blaze/frag.fsh b/core/src/main/resources/assets/distanthorizons/shaders/apply/blaze/frag.fsh
index b4b16683c..982f679f4 100644
--- a/core/src/main/resources/assets/distanthorizons/shaders/apply/blaze/frag.fsh
+++ b/core/src/main/resources/assets/distanthorizons/shaders/apply/blaze/frag.fsh
@@ -6,7 +6,7 @@ out vec4 fragColor;
 
 layout (std140) uniform baseFragUniformBlock
 {
-    bool uIsVulkan;
+    bool uIsReverseZDepth;
 };
 
 uniform sampler2D uSourceColorTexture;
@@ -19,7 +19,7 @@ void main()
     float fragmentDepth = texture(uSourceDepthTexture, TexCoord).r;
     
     bool drawnTo;
-    if (uIsVulkan)
+    if (uIsReverseZDepth)
     {
         drawnTo = (fragmentDepth != 0.0f);
     }
diff --git a/core/src/main/resources/assets/distanthorizons/shaders/fade/blaze/dh_fade.fsh b/core/src/main/resources/assets/distanthorizons/shaders/fade/blaze/dh_fade.fsh
index 46fc45a26..32178a263 100644
--- a/core/src/main/resources/assets/distanthorizons/shaders/fade/blaze/dh_fade.fsh
+++ b/core/src/main/resources/assets/distanthorizons/shaders/fade/blaze/dh_fade.fsh
@@ -12,7 +12,7 @@ layout (std140) uniform fragUniformBlock
     // inverted model view matrix and projection matrix
     mat4 uDhInvMvmProj;
     
-    bool uIsVulkan;
+    bool uIsReverseZDepth;
 };
 
 uniform sampler2D uMcColorTexture;
@@ -28,7 +28,7 @@ vec3 calcViewPosition(float fragmentDepth, mat4 invMvmProj)
 {
     // normalized device coordinates
     vec4 ndc = vec4(TexCoord.xy, fragmentDepth, 1.0);
-    if (uIsVulkan)
+    if (uIsReverseZDepth)
     {
         // Z already in [0,1], don't remap
         ndc.xy = ndc.xy * 2.0 - 1.0;
diff --git a/core/src/main/resources/assets/distanthorizons/shaders/fade/blaze/vanilla_fade.fsh b/core/src/main/resources/assets/distanthorizons/shaders/fade/blaze/vanilla_fade.fsh
index d384688d8..49d04521b 100644
--- a/core/src/main/resources/assets/distanthorizons/shaders/fade/blaze/vanilla_fade.fsh
+++ b/core/src/main/resources/assets/distanthorizons/shaders/fade/blaze/vanilla_fade.fsh
@@ -22,7 +22,7 @@ layout (std140) uniform fragUniformBlock
     mat4 uDhInvMvmProj;
     mat4 uMcInvMvmProj;
 
-    bool uIsVulkan;
+    bool uIsReverseZDepth;
 };
 
 
@@ -35,7 +35,7 @@ vec3 calcViewPosition(float fragmentDepth, mat4 invMvmProj)
 {
     // normalized device coordinates
     vec4 ndc = vec4(TexCoord.xy, fragmentDepth, 1.0);
-    if (uIsVulkan)
+    if (uIsReverseZDepth)
     {
         // Z already in [0,1], don't remap
         ndc.xy = ndc.xy * 2.0 - 1.0;
@@ -84,7 +84,7 @@ void main()
 
     // we only want to fade vanilla rendered objects, not to the sky or LODs
     bool isGround;
-    if (uIsVulkan)
+    if (uIsReverseZDepth)
     {
         isGround = (mcFragmentDepth > 0);
     }
diff --git a/core/src/main/resources/assets/distanthorizons/shaders/fog/blaze/frag.fsh b/core/src/main/resources/assets/distanthorizons/shaders/fog/blaze/frag.fsh
index a6036262a..444426d79 100644
--- a/core/src/main/resources/assets/distanthorizons/shaders/fog/blaze/frag.fsh
+++ b/core/src/main/resources/assets/distanthorizons/shaders/fog/blaze/frag.fsh
@@ -41,7 +41,7 @@ layout (std140) uniform fragUniformBlock
     // inverted model view matrix and projection matrix
     mat4 uInvMvmProj;
 
-    bool uIsVulkan;
+    bool uIsReverseZDepth;
 };
 
 uniform sampler2D uDhDepthTexture;
@@ -142,7 +142,7 @@ vec3 calcViewPosition(float fragmentDepth, mat4 invMvmProj)
 {
     // normalized device coordinates
     vec4 ndc = vec4(TexCoord.xy, fragmentDepth, 1.0);
-    if (uIsVulkan)
+    if (uIsReverseZDepth)
     {
         // Z already in [0,1], don't remap
         ndc.xy = ndc.xy * 2.0 - 1.0;
diff --git a/core/src/main/resources/assets/distanthorizons/shaders/ssao/blaze/frag.fsh b/core/src/main/resources/assets/distanthorizons/shaders/ssao/blaze/frag.fsh
index 6e7f99a10..45a7eb9b1 100644
--- a/core/src/main/resources/assets/distanthorizons/shaders/ssao/blaze/frag.fsh
+++ b/core/src/main/resources/assets/distanthorizons/shaders/ssao/blaze/frag.fsh
@@ -23,7 +23,7 @@ layout (std140) uniform fragUniformBlock
     mat4 uInvProj;
     mat4 uProj;
 
-    bool uIsVulkan;
+    bool uIsReverseZDepth;
 };
 
 uniform sampler2D uDhDepthTexture;
@@ -51,7 +51,7 @@ vec3 calcViewPosition(float fragmentDepth, mat4 invMvmProj)
 {
     // normalized device coordinates
     vec4 ndc = vec4(TexCoord.xy, fragmentDepth, 1.0);
-    if (uIsVulkan)
+    if (uIsReverseZDepth)
     {
         // Z already in [0,1], don't remap
         ndc.xy = ndc.xy * 2.0 - 1.0;
@@ -98,7 +98,7 @@ float GetSpiralOcclusion(const in vec2 uv, const in vec3 viewPos, const in vec3
             continue;   
         }
 
-        if (uIsVulkan)
+        if (uIsReverseZDepth)
         {
             vec4 ndc = vec4(
                 sampleClipPos.x * 2.0 - 1.0, // UV [0,1] -> NDC [-1,+1]
@@ -137,7 +137,7 @@ void main()
     float occlusion = 0.0;
     
     bool isGround;
-    if (uIsVulkan)
+    if (uIsReverseZDepth)
     {
         isGround = (fragmentDepth > 0.0f);
     }