Merge remote-tracking branch 'secondlife/release/2025.03' into 2025.03

8 files changed, 46 insertions, 6 deletions

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 1aec56447d..7b764d47b3 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -7860,6 +7860,17 @@
     <key>Value</key>
     <integer>0</integer>
   </map>
+  <key>RenderTextureVRAMDivisor</key>
+  <map>
+      <key>Comment</key>
+      <string>Divisor for maximum amount of VRAM the viewer will use for textures. 1 = all the VRAM.  Used in conjunction with RenderMaxVRAMBudget.</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>U32</string>
+      <key>Value</key>
+      <integer>2</integer>
+  </map>
   <key>RenderMinFreeMainMemoryThreshold</key>
   <map>
     <key>Comment</key>
@@ -11684,7 +11695,7 @@
         <key>Type</key>
         <string>F32</string>
         <key>Value</key>
-        <real>0.04</real>
+        <real>0.0095</real>
     </map>
     <key>TextureScaleMaxAreaFactor</key>
     <map>
diff --git a/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl
index d32455d70c..fa94fb98f0 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl
@@ -80,6 +80,17 @@ vec3 atmosFragLightingLinear(vec3 light, vec3 additive, vec3 atten);
 
 vec4 decodeNormal(vec4 norm);
 
+vec3 clampHDRRange(vec3 color)
+{
+    // Why do this?
+    // There are situations where the color range will go to something insane - potentially producing infs and NaNs even.
+    // This is a safety measure to prevent that.
+    // As to the specific number there - allegedly some HDR displays expect values to be in the 0-11.2 range. Citation needed.
+    // -Geenz 2025-03-05
+    color = mix(color, vec3(0.0), isnan(color));
+    return clamp(color, vec3(0.0), vec3(11.2));
+}
+
 float calcLegacyDistanceAttenuation(float distance, float falloff)
 {
     float dist_atten = 1.0 - clamp((distance + falloff)/(1.0 + falloff), 0.0, 1.0);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredF.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredF.glsl
index 9797bcd2ce..4e737492a7 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/postDeferredF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredF.glsl
@@ -69,6 +69,8 @@ void dofSampleNear(inout vec4 diff, inout float w, float min_sc, vec2 tc)
     w += wg;
 }
 
+vec3 clampHDRRange(vec3 color);
+
 void main()
 {
     vec2 tc = vary_fragcoord.xy;
@@ -120,5 +122,6 @@ void main()
         diff /= w;
     }
 
+    diff.rgb = clampHDRRange(diff.rgb);
     frag_color = diff;
 }
diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
index befd2ae6da..4ccc6f54a8 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredGammaCorrect.glsl
@@ -43,6 +43,8 @@ vec3 legacyGamma(vec3 color)
     return c;
 }
 
+vec3 clampHDRRange(vec3 color);
+
 void main()
 {
     //this is the one of the rare spots where diffuseRect contains linear color values (not sRGB)
@@ -53,6 +55,7 @@ void main()
     diff.rgb = legacyGamma(diff.rgb);
 #endif
 
-    frag_color = max(diff, vec4(0));
+    diff.rgb = clampHDRRange(diff.rgb);
+    frag_color = diff;
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredNoDoFF.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredNoDoFF.glsl
index 32b0a1ac8e..c05b4eed7a 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/postDeferredNoDoFF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredNoDoFF.glsl
@@ -71,6 +71,7 @@ float noise(vec2 x) {
 
 //=============================
 
+vec3 clampHDRRange(vec3 color);
 
 
 void main()
@@ -84,6 +85,7 @@ void main()
     diff.rgb += nz*0.003;
 #endif
 
+    diff.rgb = clampHDRRange(diff.rgb);
     frag_color = diff;
 
     gl_FragDepth = texture(depthMap, vary_fragcoord.xy).r;
diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredTonemap.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredTonemap.glsl
index c4610bffac..1f01c7f16a 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/postDeferredTonemap.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredTonemap.glsl
@@ -34,6 +34,8 @@ in vec2 vary_fragcoord;
 vec3 linear_to_srgb(vec3 cl);
 vec3 toneMap(vec3 color);
 
+vec3 clampHDRRange(vec3 color);
+
 void main()
 {
     //this is the one of the rare spots where diffuseRect contains linear color values (not sRGB)
@@ -45,6 +47,7 @@ void main()
     diff.rgb = clamp(diff.rgb, vec3(0.0), vec3(1.0));
 #endif
 
+    diff.rgb = clampHDRRange(diff.rgb);
     //debugExposure(diff.rgb);
     frag_color = max(diff, vec4(0));
 }
diff --git a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl
index 2e288184bf..6cec65ad83 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl
@@ -104,6 +104,7 @@ vec3 pbrBaseLight(vec3 diffuseColor,
                   vec3 atten);
 
 GBufferInfo getGBuffer(vec2 screenpos);
+vec3 clampHDRRange(vec3 color);
 
 void adjustIrradiance(inout vec3 irradiance, float ambocc)
 {
@@ -278,6 +279,7 @@ void main()
     float final_scale = 1;
     if (classic_mode > 0)
         final_scale = 1.1;
-    frag_color.rgb = max(color.rgb * final_scale, vec3(0)); //output linear since local lights will be added to this shader's results
+
+    frag_color.rgb = clampHDRRange(color.rgb * final_scale); //output linear since local lights will be added to this shader's results
     frag_color.a = 0.0;
 }
diff --git a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
index 18dc367568..a194832b1d 100644
--- a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
@@ -255,7 +255,7 @@ void main()
     shadow = sampleDirectionalShadow(pos.xyz, norm.xyz, distort);
 #endif
 
-    vec3 sunlit_linear = srgb_to_linear(sunlit);
+    vec3 sunlit_linear = sunlit;
     float fade = 1.0;
 #ifdef TRANSPARENT_WATER
     float depth = texture(depthMap, distort).r;
@@ -263,7 +263,12 @@ void main()
     vec3 refPos = getPositionWithNDC(vec3(distort*2.0-vec2(1.0), depth*2.0-1.0));
 
     // Calculate some distance fade in the water to better assist with refraction blending and reducing the refraction texture's "disconnect".
-    fade = max(0.0,min(1.0, (pos.z - refPos.z) / 10.0)) * water_mask;
+#ifdef SHORELINE_FADE
+    fade = max(0.0,min(1.0, (pos.z - refPos.z) / 10.0))
+#else
+    fade = 1.0 * water_mask;
+#endif
+
     distort2 = mix(distort, distort2, min(1.0, fade * 10.0));
     depth = texture(depthMap, distort2).r;
 
@@ -317,7 +322,7 @@ void main()
 
     pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, normalize(wavef+up*max(dist, 32.0)/32.0*(1.0-vdu)), v, normalize(light_dir), nl, diffPunc, specPunc);
 
-    vec3 punctual = clamp(nl * (diffPunc + specPunc), vec3(0), vec3(10)) * sunlit_linear * shadow;
+    vec3 punctual = clamp(nl * (diffPunc + specPunc), vec3(0), vec3(10)) * sunlit_linear * shadow * atten;
     radiance *= df2.y;
     //radiance = toneMapNoExposure(radiance);
     vec3 color = vec3(0);