2 files changed, 20 insertions, 8 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl b/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl
index 96c70651b1..44b41cc0b8 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl
@@ -42,10 +42,21 @@ VARYING vec2 vary_texcoord2;
 VARYING vec2 vary_texcoord3;
 
 uniform sampler2D cloud_noise_texture;
+uniform sampler2D cloud_noise_texture_next;
+uniform float blend_factor;
 uniform vec4 cloud_pos_density1;
 uniform vec4 cloud_pos_density2;
 uniform vec4 gamma;
 
+vec4 cloudNoise(vec2 uv)
+{
+	vec4 a = texture2D(cloud_noise_texture, uv);
+	vec4 b = texture2D(cloud_noise_texture_next, uv);
+    vec4 samp = mix(a, b, blend_factor);
+	return samp;
+}
+
+
 /// Soft clips the light with a gamma correction
 vec3 scaleSoftClip(vec3 light) {
 	//soft clip effect:
@@ -75,7 +86,7 @@ void main()
 
 
 	// Compute alpha1, the main cloud opacity
-	float alpha1 = (texture2D(cloud_noise_texture, uv1).x - 0.5) + (texture2D(cloud_noise_texture, uv3).x - 0.5) * cloud_pos_density2.z;
+	float alpha1 = (cloudNoise(uv1).x - 0.5) + (cloudNoise(uv3).x - 0.5) * cloud_pos_density2.z;
 	alpha1 = min(max(alpha1 + cloudDensity, 0.) * 10. * cloud_pos_density1.z, 1.);
 
 	// And smooth
@@ -85,7 +96,7 @@ void main()
 
 	// Compute alpha2, for self shadowing effect
 	// (1 - alpha2) will later be used as percentage of incoming sunlight
-	float alpha2 = (texture2D(cloud_noise_texture, uv2).x - 0.5);
+	float alpha2 = (cloudNoise(uv2).x - 0.5);
 	alpha2 = min(max(alpha2 + cloudDensity, 0.) * 2.5 * cloud_pos_density1.z, 1.);
 
 	// And smooth
diff --git a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl
index 5185a9f8f4..0fb990611e 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl
@@ -34,18 +34,18 @@ in vec3 view_dir;
 
 uniform vec3 cameraPosLocal;
 uniform vec3 sun_dir;
+uniform vec3 moon_dir;
 uniform float sun_size;
 
-uniform sampler2D cloud_noise_texture;
 uniform sampler2D transmittance_texture;
 uniform sampler3D scattering_texture;
 uniform sampler3D single_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);
-vec3 GetSkyLuminanceToPoint(vec3 camPos, vec3 pos, float shadow_length, vec3 sun_dir, out vec3 transmittance);
-vec3 GetSunAndSkyIlluminance(vec3 pos, vec3 norm, vec3 sun_dir, out vec3 sky_irradiance);
+vec3 GetSkyLuminance(vec3 camPos, vec3 view_dir, float shadow_length, vec3 dir, out vec3 transmittance);
+vec3 GetSkyLuminanceToPoint(vec3 camPos, vec3 pos, float shadow_length, vec3 dir, out vec3 transmittance);
+vec3 GetSunAndSkyIlluminance(vec3 pos, vec3 norm, vec3 dir, out vec3 sky_irradiance);
 
 void main()
 {
@@ -56,8 +56,9 @@ void main()
     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);
+
+    vec3 radiance_sun = GetSkyLuminance(camPos, view_direction, 0.0f, sun_direction, transmittance);
+    vec3 radiance2_sun = GetSunAndSkyIlluminance(camPos, view_direction, sun_direction, sky_illum);
 
     radiance *= transmittance;