From 3116416fcb8dfd54ef2807e9e75959429c946d79 Mon Sep 17 00:00:00 2001
From: "Graham Linden graham@lindenlab.com"
 <Graham Linden graham@lindenlab.com>
Date: Tue, 1 May 2018 00:10:11 +0100
Subject: Le Merge

---
 indra/newview/app_settings/logcontrol.xml          |  1 +
 indra/newview/app_settings/settings.xml            |  2 +-
 .../app_settings/shaders/class3/deferred/skyF.glsl | 28 +++++++++++++++++-----
 .../app_settings/shaders/class3/deferred/skyV.glsl | 14 ++++++++---
 .../shaders/class3/windlight/advancedAtmoF.glsl    | 17 +++++++------
 5 files changed, 45 insertions(+), 17 deletions(-)

(limited to 'indra/newview/app_settings')

diff --git a/indra/newview/app_settings/logcontrol.xml b/indra/newview/app_settings/logcontrol.xml
index 380d7762d6..951c8edcc7 100644
--- a/indra/newview/app_settings/logcontrol.xml
+++ b/indra/newview/app_settings/logcontrol.xml
@@ -51,6 +51,7 @@
 					<key>tags</key>
 						<array>
 						<!-- sample entry for debugging specific items	
+						     <string>ShaderLoading</string>
 						     <string>Avatar</string>
 						     <string>Inventory</string>
 						     <string>SceneLoadTiming</string>
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index c3097589ea..0d9042a301 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -10143,7 +10143,7 @@
     <key>Type</key>
     <string>Boolean</string>
     <key>Value</key>
-    <integer>0</integer>
+    <integer>1</integer>
   </map>
   <key>RenderUseTriStrips</key>
   <map>
diff --git a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl
index 0223f94e55..5185a9f8f4 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl
@@ -29,11 +29,12 @@ out vec4 frag_color;
 #define frag_color gl_FragColor
 #endif
 
+in vec3 view_pos;
 in vec3 view_dir;
 
 uniform vec3 cameraPosLocal;
-uniform vec3 sun_direction;
-uniform vec2 sun_size;
+uniform vec3 sun_dir;
+uniform float sun_size;
 
 uniform sampler2D cloud_noise_texture;
 uniform sampler2D transmittance_texture;
@@ -50,20 +51,35 @@ void main()
 {
     vec3 view_direction = normalize(view_dir);
 
+    vec3 sun_direction = sun_dir;
+
     vec3 camPos = cameraPosLocal + vec3(0, 0, 6360.0f);
     vec3 transmittance;
+    vec3 sky_illum;
     vec3 radiance = GetSkyLuminance(camPos, view_direction, 0.0f, sun_direction, transmittance);
+    vec3 radiance2 = GetSunAndSkyIlluminance(camPos, view_direction, sun_direction, sky_illum);
+
+    radiance *= transmittance;
+
+    vec3 solar_luminance = transmittance * GetSolarLuminance();
 
     // If the view ray intersects the Sun, add the Sun radiance.
-    if (dot(view_direction, sun_direction) >= sun_size.y)
+    if (dot(view_direction, sun_direction) >= sun_size)
     {
-        radiance = radiance + (transmittance * GetSolarLuminance());
+        radiance = radiance + solar_luminance;
     }
 
-    vec3 color = vec3(1.0) - exp(-radiance);
-    color = pow(color, vec3(1.0 / 2.2));
+    vec3 color = radiance;
+    
+    color = vec3(1.0) - exp(-color * 0.0001);
+
+    //float d = dot(view_direction, sun_direction);
+    //frag_color.rgb = vec3(d, d >= sun_size ? 1.0f : 0.0f, 0.0f);
 
     frag_color.rgb = color;
+    //frag_color.rgb = vec3(dot(view_direction, sun_direction) > 0.95f ? 1.0 : 0.0, 0,0);
+    frag_color.rgb = normalize(view_pos);
+
     frag_color.a = 1.0;
 }
 
diff --git a/indra/newview/app_settings/shaders/class3/deferred/skyV.glsl b/indra/newview/app_settings/shaders/class3/deferred/skyV.glsl
index 52a7595379..cf3eb658fc 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/skyV.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/skyV.glsl
@@ -23,21 +23,29 @@
  * $/LicenseInfo$
  */
  
+uniform vec3 cameraPosLocal;
 uniform mat4 modelview_projection_matrix;
+uniform mat4 modelview_matrix;
+uniform mat4 inv_proj;
+uniform mat4 inv_modelview;
 
 ATTRIBUTE vec3 position;
 
 // Inputs
 uniform vec3 camPosLocal;
 
+out vec3 view_pos;
 out vec3 view_dir;
 
 void main()
 {
-	// World / view / projection
-	gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
+    // pass through untransformed fullscreen pos (clipspace)
+	gl_Position = vec4(position.xyz, 1.0);
+
+    view_pos = (inv_proj * vec4(position, 1.0f)).xyz;
 
 	// this will be normalized in the frag shader...
-	view_dir = position.xyz - camPosLocal.xyz; 
+	//view_dir = (inv_modelview * view_pos).xyz;
+    view_dir = view_pos - camPosLocal;
 }
 
diff --git a/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl b/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl
index 014ab9d11b..fed3edf7de 100644
--- a/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl
+++ b/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl
@@ -32,12 +32,13 @@ out vec4 frag_color;
 in vec3 view_dir;
 
 uniform vec3 cameraPosLocal;
-uniform vec3 sun_direction;
+uniform vec3 sun_dir;
 uniform float sun_size;
 
 uniform sampler2D transmittance_texture;
 uniform sampler3D scattering_texture;
 uniform sampler3D mie_scattering_texture;
+uniform sampler2D irradiance_texture;
 
 vec3 GetSolarLuminance();
 vec3 GetSkyLuminance(vec3 camPos, vec3 view_dir, float shadow_length, vec3 sun_dir, out vec3 transmittance);
@@ -50,20 +51,22 @@ void main()
 
     vec3 camPos = cameraPosLocal;
     vec3 transmittance;
-    vec3 radiance = GetSkyLuminance(camPos, view_direction, 0.0f, sun_direction, transmittance);
+    vec3 sky_illum;
+    vec3 radiance = GetSkyLuminance(camPos, view_direction, 0.0f, sun_dir, transmittance);
+    vec3 radiance2 = GetSunAndSkyIlluminance(camPos, view_direction, sun_dir, sky_illum);
 
-    radiance *= transmittance;
+    //radiance *= transmittance;
 
     // If the view ray intersects the Sun, add the Sun radiance.
-    if (dot(view_direction, sun_direction) >= sun_size)
+    if (dot(view_direction, sun_dir) >= sun_size)
     {
         radiance = radiance + transmittance * GetSolarLuminance();
     }
 
-    vec3 color = vec3(1.0) - exp(-radiance);
-    color = pow(color, vec3(1.0 / 2.2));
+    //vec3 color = vec3(1.0) - exp(-radiance);
+    //color = pow(color, vec3(1.0 / 2.2));
 
-    frag_color.rgb = color;
+    frag_color.rgb = radiance;
  
     frag_color.a = 1.0;
 }
-- 
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