From 3f4b8423a46bae4736ebcc28082ee1a9d5b71d6b Mon Sep 17 00:00:00 2001
From: Ptolemy <ptolemy@lindenlab.com>
Date: Thu, 29 Apr 2021 10:27:09 -0700
Subject: [PATCH] SL-14113: Merge duplicate shader constant for clarity.

---
 indra/llrender/llglslshader.cpp                      | 12 +++++-------
 indra/llrender/llglslshader.h                        |  5 ++---
 .../shaders/class1/deferred/cloudsF.glsl             |  2 +-
 .../app_settings/shaders/class1/deferred/moonF.glsl  |  2 +-
 .../shaders/class1/environment/moonF.glsl            |  2 +-
 .../app_settings/shaders/class1/windlight/moonF.glsl |  2 +-
 .../shaders/class2/windlight/cloudsF.glsl            |  2 +-
 indra/newview/llviewershadermgr.cpp                  | 10 +++++-----
 8 files changed, 17 insertions(+), 20 deletions(-)

diff --git a/indra/llrender/llglslshader.cpp b/indra/llrender/llglslshader.cpp
index 458f83aabe9..74c8b2e448b 100644
--- a/indra/llrender/llglslshader.cpp
+++ b/indra/llrender/llglslshader.cpp
@@ -62,20 +62,18 @@ U32 LLGLSLShader::sTotalDrawCalls = 0;
 LLGLSLShader    gUIProgram;
 LLGLSLShader    gSolidColorProgram;
 
-// NOTE:Keep gShaderConsts* and LLGLSLShader::ShaderConsts_e in sync!
+// NOTE: Keep gShaderConsts* and LLGLSLShader::ShaderConsts_e in sync!
 const std::string gShaderConstsKey[ LLGLSLShader::NUM_SHADER_CONSTS ] =
 {
-	  "LL_SHADER_CONST_CLOUD_DEPTH"
-	, "LL_SHADER_CONST_MOON_DEPTH"
+	  "LL_SHADER_CONST_CLOUD_MOON_DEPTH"
 	, "LL_SHADER_CONST_STAR_DEPTH"
 };
 
-// NOTE:Keep gShaderConsts* and LLGLSLShader::ShaderConsts_e in sync!
+// NOTE: Keep gShaderConsts* and LLGLSLShader::ShaderConsts_e in sync!
 const std::string gShaderConstsVal[ LLGLSLShader::NUM_SHADER_CONSTS ] =
 {
-	  "0.999985" // SHADER_CONST_CLOUD_DEPTH // SL-14113
-	, "0.999985" // SHADER_CONST_MOON_DEPTH  // SL-14113
-	, "0.999995" // SHADER_CONST_STAR_DEPTH  // SL-14113
+	  "0.999985" // SHADER_CONST_CLOUD_MOON_DEPTH // SL-14113
+	, "0.999995" // SHADER_CONST_STAR_DEPTH       // SL-14113
 };
 
 
diff --git a/indra/llrender/llglslshader.h b/indra/llrender/llglslshader.h
index 35e796e961c..e2d00317400 100644
--- a/indra/llrender/llglslshader.h
+++ b/indra/llrender/llglslshader.h
@@ -67,11 +67,10 @@ class LLShaderFeatures
 class LLGLSLShader
 {
 public:
-    // NOTE:Keep gShaderConsts and LLGLSLShader::ShaderConsts_e in sync!
+    // NOTE: Keep gShaderConsts and LLGLSLShader::ShaderConsts_e in sync!
     enum eShaderConsts
     {
-          SHADER_CONST_CLOUD_DEPTH
-        , SHADER_CONST_MOON_DEPTH
+          SHADER_CONST_CLOUD_MOON_DEPTH
         , SHADER_CONST_STAR_DEPTH
         , NUM_SHADER_CONSTS
     };
diff --git a/indra/newview/app_settings/shaders/class1/deferred/cloudsF.glsl b/indra/newview/app_settings/shaders/class1/deferred/cloudsF.glsl
index ad8ab771b84..f1187fef9aa 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/cloudsF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/cloudsF.glsl
@@ -126,6 +126,6 @@ void main()
     frag_data[1] = vec4(0.0,0.0,0.0,0.0);
     frag_data[2] = vec4(0,0,0,1);
 
-    gl_FragDepth = LL_SHADER_CONST_CLOUD_DEPTH; // SL-14113 Stars and Clouds need same depth
+    gl_FragDepth = LL_SHADER_CONST_CLOUD_MOON_DEPTH; // SL-14113 Stars and Clouds need same depth
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl b/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl
index ffeaf2b6001..e709d73bfa5 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/moonF.glsl
@@ -74,6 +74,6 @@ void main()
     frag_data[1] = vec4(0.0);
     frag_data[2] = vec4(0.0f);
 
-    gl_FragDepth = LL_SHADER_CONST_MOON_DEPTH; // SL-14113
+    gl_FragDepth = LL_SHADER_CONST_CLOUD_MOON_DEPTH; // SL-14113
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/environment/moonF.glsl b/indra/newview/app_settings/shaders/class1/environment/moonF.glsl
index 983cd17979a..a220971f066 100644
--- a/indra/newview/app_settings/shaders/class1/environment/moonF.glsl
+++ b/indra/newview/app_settings/shaders/class1/environment/moonF.glsl
@@ -47,5 +47,5 @@ void main()
         discard;
 
     frag_color = color;
-    gl_FragDepth = LL_SHADER_CONST_MOON_DEPTH; // SL-14113 Moon is infront of stars
+    gl_FragDepth = LL_SHADER_CONST_CLOUD_MOON_DEPTH; // SL-14113 Moon is infront of stars
 }
diff --git a/indra/newview/app_settings/shaders/class1/windlight/moonF.glsl b/indra/newview/app_settings/shaders/class1/windlight/moonF.glsl
index 293e09620fd..2e0932343b7 100644
--- a/indra/newview/app_settings/shaders/class1/windlight/moonF.glsl
+++ b/indra/newview/app_settings/shaders/class1/windlight/moonF.glsl
@@ -68,6 +68,6 @@ void main()
          c.rgb  = scaleSoftClip(c.rgb);
 
     frag_color = vec4(c.rgb, c.a);
-    gl_FragDepth = LL_SHADER_CONST_MOON_DEPTH; // SL-14113
+    gl_FragDepth = LL_SHADER_CONST_CLOUD_MOON_DEPTH; // SL-14113
 }
 
diff --git a/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl b/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl
index ec53ae75f9b..490fde7cf6b 100644
--- a/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl
+++ b/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl
@@ -132,6 +132,6 @@ void main()
     // camera above water: class1\deferred\cloudsF.glsl
     // camera below water: class2\windlight\coudsV.glsl
     // See: starsV.glsl, cloudsV.glsl, moonF.glsl
-    gl_FragDepth = LL_SHADER_CONST_CLOUD_DEPTH;
+    gl_FragDepth = LL_SHADER_CONST_CLOUD_MOON_DEPTH;
 }
 
diff --git a/indra/newview/llviewershadermgr.cpp b/indra/newview/llviewershadermgr.cpp
index 1dcd9289ef3..0c1ba13bb10 100644
--- a/indra/newview/llviewershadermgr.cpp
+++ b/indra/newview/llviewershadermgr.cpp
@@ -1075,7 +1075,7 @@ BOOL LLViewerShaderMgr::loadShadersEnvironment()
 		gMoonProgram.mShaderFiles.push_back(make_pair("environment/moonV.glsl", GL_VERTEX_SHADER_ARB));
 		gMoonProgram.mShaderFiles.push_back(make_pair("environment/moonF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gMoonProgram.mShaderLevel = mShaderLevel[SHADER_ENVIRONMENT];
-        gMoonProgram.addConstant( LLGLSLShader::SHADER_CONST_MOON_DEPTH ); // SL-14113
+        gMoonProgram.addConstant( LLGLSLShader::SHADER_CONST_CLOUD_MOON_DEPTH ); // SL-14113
 		success = gMoonProgram.createShader(NULL, NULL);
 		if (success)
 
@@ -2753,7 +2753,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
 		gDeferredWLCloudProgram.mShaderFiles.push_back(make_pair("deferred/cloudsF.glsl", GL_FRAGMENT_SHADER_ARB));
 		gDeferredWLCloudProgram.mShaderLevel = mShaderLevel[SHADER_DEFERRED];
 		gDeferredWLCloudProgram.mShaderGroup = LLGLSLShader::SG_SKY;
-        gDeferredWLCloudProgram.addConstant( LLGLSLShader::SHADER_CONST_CLOUD_DEPTH ); // SL-14113
+        gDeferredWLCloudProgram.addConstant( LLGLSLShader::SHADER_CONST_CLOUD_MOON_DEPTH ); // SL-14113
 		success = gDeferredWLCloudProgram.createShader(NULL, NULL);
 		llassert(success);
 	}
@@ -2793,7 +2793,7 @@ BOOL LLViewerShaderMgr::loadShadersDeferred()
         gDeferredWLMoonProgram.mShaderFiles.push_back(make_pair("deferred/moonF.glsl", GL_FRAGMENT_SHADER_ARB));
         gDeferredWLMoonProgram.mShaderLevel = mShaderLevel[SHADER_DEFERRED];
         gDeferredWLMoonProgram.mShaderGroup = LLGLSLShader::SG_SKY;
-        gDeferredWLMoonProgram.addConstant( LLGLSLShader::SHADER_CONST_MOON_DEPTH ); // SL-14113
+        gDeferredWLMoonProgram.addConstant( LLGLSLShader::SHADER_CONST_CLOUD_MOON_DEPTH ); // SL-14113
  	 	success = gDeferredWLMoonProgram.createShader(NULL, NULL);
         llassert(success);
  	}
@@ -4163,7 +4163,7 @@ BOOL LLViewerShaderMgr::loadShadersWindLight()
         gWLCloudProgram.mShaderFiles.push_back(make_pair("windlight/cloudsF.glsl", GL_FRAGMENT_SHADER_ARB));
         gWLCloudProgram.mShaderLevel = mShaderLevel[SHADER_WINDLIGHT];
         gWLCloudProgram.mShaderGroup = LLGLSLShader::SG_SKY;
-        gWLCloudProgram.addConstant( LLGLSLShader::SHADER_CONST_CLOUD_DEPTH ); // SL-14113
+        gWLCloudProgram.addConstant( LLGLSLShader::SHADER_CONST_CLOUD_MOON_DEPTH ); // SL-14113
         success = gWLCloudProgram.createShader(NULL, NULL);
     }
 
@@ -4200,7 +4200,7 @@ BOOL LLViewerShaderMgr::loadShadersWindLight()
         gWLMoonProgram.mShaderFiles.push_back(make_pair("windlight/moonF.glsl", GL_FRAGMENT_SHADER_ARB));
         gWLMoonProgram.mShaderLevel = mShaderLevel[SHADER_WINDLIGHT];
         gWLMoonProgram.mShaderGroup = LLGLSLShader::SG_SKY;
-        gWLMoonProgram.addConstant( LLGLSLShader::SHADER_CONST_MOON_DEPTH ); // SL-14113
+        gWLMoonProgram.addConstant( LLGLSLShader::SHADER_CONST_CLOUD_MOON_DEPTH ); // SL-14113
         success = gWLMoonProgram.createShader(NULL, NULL);
     }
 
-- 
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