From cba1807a9164442880dbcbd48e1faff7a82153c7 Mon Sep 17 00:00:00 2001
From: "Jonathan \"Geenz\" Goodman" <geenz@lindenlab.com>
Date: Thu, 2 Jan 2025 14:42:49 -0500
Subject: #3326 Skip ambient probe sampling when we're in classic mode.  Ensure
 that our passed in ambient lighting is the only thing that gets applied.
 (#3327)

---
 .../shaders/class3/deferred/reflectionProbeF.glsl            | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'indra/newview/app_settings/shaders')

diff --git a/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl b/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl
index 5dfa196cf6..a975b1f121 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl
@@ -38,6 +38,8 @@ uniform float max_probe_lod;
 
 uniform bool transparent_surface;
 
+uniform int classic_mode;
+
 #define MAX_REFMAP_COUNT 256  // must match LL_MAX_REFLECTION_PROBE_COUNT
 
 layout (std140) uniform ReflectionProbes
@@ -739,7 +741,10 @@ void doProbeSample(inout vec3 ambenv, inout vec3 glossenv,
 
     vec3 refnormpersp = reflect(pos.xyz, norm.xyz);
 
-    ambenv = sampleProbeAmbient(pos, norm, amblit);
+    ambenv = amblit;
+
+    if (classic_mode == 0)
+        ambenv = sampleProbeAmbient(pos, norm, amblit);
 
     float lod = (1.0-glossiness)*reflection_lods;
     glossenv = sampleProbes(pos, normalize(refnormpersp), lod);
@@ -845,7 +850,10 @@ void sampleReflectionProbesLegacy(inout vec3 ambenv, inout vec3 glossenv, inout
 
     vec3 refnormpersp = reflect(pos.xyz, norm.xyz);
 
-    ambenv = sampleProbeAmbient(pos, norm, amblit);
+    ambenv = amblit;
+
+    if (classic_mode == 0)
+        ambenv = sampleProbeAmbient(pos, norm, amblit);
 
     if (glossiness > 0.0)
     {
-- 
cgit v1.2.3


From 8d57388a9ec67c6fb4dc2a17c0317f71ea294681 Mon Sep 17 00:00:00 2001
From: Rye <rye@lindenlab.com>
Date: Thu, 9 Jan 2025 20:02:54 -0500
Subject: Fix world going black and white in certain locations on apple gpu
 (#2558)

---
 indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl    | 2 +-
 indra/newview/app_settings/shaders/class3/deferred/materialF.glsl | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'indra/newview/app_settings/shaders')

diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
index 3e702f26be..cc9d72fae6 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaF.glsl
@@ -150,7 +150,7 @@ vec3 calcPointLightOrSpotLight(vec3 light_col, vec3 diffuse, vec3 v, vec3 n, vec
         float amb_da = 0.0;//ambiance;
         if (da > 0)
         {
-            lit = max(da * dist_atten,0.0);
+            lit = clamp(da * dist_atten, 0.0, 1.0);
             col = lit * light_col * diffuse;
             amb_da += (da*0.5+0.5) * ambiance;
         }
diff --git a/indra/newview/app_settings/shaders/class3/deferred/materialF.glsl b/indra/newview/app_settings/shaders/class3/deferred/materialF.glsl
index 7f871c0d5e..5708fc319f 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/materialF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/materialF.glsl
@@ -140,7 +140,7 @@ vec3 calcPointLightOrSpotLight(vec3 light_col, vec3 npos, vec3 diffuse, vec4 spe
         float amb_da = ambiance;
         if (da >= 0)
         {
-            lit = max(da * dist_atten, 0.0);
+            lit = clamp(da * dist_atten, 0.0, 1.0);
             col = lit * light_col * diffuse;
             amb_da += (da*0.5 + 0.5) * ambiance;
         }
-- 
cgit v1.2.3


From 460e77c47eb8167b1dc2c45bbd8ae4ff6937bcdb Mon Sep 17 00:00:00 2001
From: "Jonathan \"Geenz\" Goodman" <geenz@lindenlab.com>
Date: Thu, 30 Jan 2025 01:59:45 -0500
Subject: #3456 Water improvements to get us closer to 6.6.17 (#3490)

* A lot of tweaking for water.

* Get water much closer to 6.6.17.

This won't produce 1:1 results, but it should be much closer to where we once were.
---
 .../shaders/class1/environment/srgbF.glsl          |  20 ++++
 .../shaders/class1/environment/waterFogF.glsl      |   4 +-
 .../shaders/class3/deferred/waterHazeF.glsl        |   2 +-
 .../shaders/class3/environment/waterF.glsl         | 125 ++++++++++++---------
 4 files changed, 92 insertions(+), 59 deletions(-)

(limited to 'indra/newview/app_settings/shaders')

diff --git a/indra/newview/app_settings/shaders/class1/environment/srgbF.glsl b/indra/newview/app_settings/shaders/class1/environment/srgbF.glsl
index d7f6d20547..bf8737615f 100644
--- a/indra/newview/app_settings/shaders/class1/environment/srgbF.glsl
+++ b/indra/newview/app_settings/shaders/class1/environment/srgbF.glsl
@@ -41,6 +41,26 @@ vec3 srgb_to_linear(vec3 cs)
 
 }
 
+
+vec4 srgb_to_linear4(vec4 cs)
+{
+    vec4 low_range = cs / vec4(12.92);
+    vec4 high_range = pow((cs+vec4(0.055))/vec4(1.055), vec4(2.4));
+    bvec4 lte = lessThanEqual(cs,vec4(0.04045));
+
+#ifdef OLD_SELECT
+    vec4 result;
+    result.r = lte.r ? low_range.r : high_range.r;
+    result.g = lte.g ? low_range.g : high_range.g;
+    result.b = lte.b ? low_range.b : high_range.b;
+    result.a = lte.a ? low_range.a : high_range.a;
+    return result;
+#else
+    return mix(high_range, low_range, lte);
+#endif
+
+}
+
 vec3 linear_to_srgb(vec3 cl)
 {
     cl = clamp(cl, vec3(0), vec3(1));
diff --git a/indra/newview/app_settings/shaders/class1/environment/waterFogF.glsl b/indra/newview/app_settings/shaders/class1/environment/waterFogF.glsl
index 20b61e9302..44a979e565 100644
--- a/indra/newview/app_settings/shaders/class1/environment/waterFogF.glsl
+++ b/indra/newview/app_settings/shaders/class1/environment/waterFogF.glsl
@@ -66,11 +66,11 @@ vec4 getWaterFogViewNoClip(vec3 pos)
     float t2 = kd + ks * es;
     float t3 = pow(F, t2*l) - 1.0;
 
-    float L = min(t1/t2*t3, 1.0);
+    float L = pow(min(t1/t2*t3, 1.0), 1.0/1.7);
 
     float D = pow(0.98, l*kd);
 
-    return vec4(srgb_to_linear(kc.rgb*L), D);
+    return vec4(srgb_to_linear(kc.rgb)*L, D);
 }
 
 vec4 getWaterFogView(vec3 pos)
diff --git a/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl b/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl
index 2bf785e773..ee49b4baae 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl
@@ -56,7 +56,7 @@ void main()
     vec4  pos          = getPositionWithDepth(tc, depth);
 
     vec4 fogged = getWaterFogView(pos.xyz);
-
+    fogged.a = max(pow(fogged.a, 1.7), 0);
     frag_color = max(fogged, vec4(0)); //output linear since local lights will be added to this shader's results
 
 }
diff --git a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
index 8bf4ec0a7e..f9e300070d 100644
--- a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
@@ -132,8 +132,54 @@ vec3 transform_normal(vec3 vNt)
 void sampleReflectionProbesWater(inout vec3 ambenv, inout vec3 glossenv,
         vec2 tc, vec3 pos, vec3 norm, float glossiness, vec3 amblit_linear);
 
+void sampleReflectionProbes(inout vec3 ambenv, inout vec3 glossenv,
+        vec2 tc, vec3 pos, vec3 norm, float glossiness, bool transparent, vec3 amblit_linear);
+
+void sampleReflectionProbesLegacy(inout vec3 ambenv, inout vec3 glossenv, inout vec3 legacyenv,
+        vec2 tc, vec3 pos, vec3 norm, float glossiness, float envIntensity, bool transparent, vec3 amblit);
+
+
 vec3 getPositionWithNDC(vec3 ndc);
 
+void generateWaveNormals(out vec3 wave1, out vec3 wave2, out vec3 wave3)
+{
+    // Generate all of our wave normals.
+    // We layer these back and forth.
+
+    vec2 bigwave = vec2(refCoord.w, view.w);
+
+    vec3 wave1_a = texture(bumpMap, bigwave, -2).xyz * 2.0 - 1.0;
+    vec3 wave2_a = texture(bumpMap, littleWave.xy).xyz * 2.0 - 1.0;
+    vec3 wave3_a = texture(bumpMap, littleWave.zw).xyz * 2.0 - 1.0;
+
+    vec3 wave1_b = texture(bumpMap2, bigwave).xyz * 2.0 - 1.0;
+    vec3 wave2_b = texture(bumpMap2, littleWave.xy).xyz * 2.0 - 1.0;
+    vec3 wave3_b = texture(bumpMap2, littleWave.zw).xyz * 2.0 - 1.0;
+
+    wave1 = BlendNormal(wave1_a, wave1_b);
+    wave2 = BlendNormal(wave2_a, wave2_b);
+    wave3 = BlendNormal(wave3_a, wave3_b);
+}
+
+void calculateFresnelFactors(out vec3 df3, out vec2 df2, vec3 viewVec, vec3 wave1, vec3 wave2, vec3 wave3, vec3 wavef)
+{
+    // We calculate the fresnel here.
+    // We do this by getting the dot product for each sets of waves, and applying scale and offset.
+
+    df3 = vec3(
+        dot(viewVec, wave1),
+        dot(viewVec, (wave2 + wave3) * 0.5),
+        dot(viewVec, wave3)
+    ) * fresnelScale + fresnelOffset;
+
+    df3 *= df3;
+
+    df2 = vec2(
+        df3.x + df3.y + df3.z,
+        dot(viewVec, wavef) * fresnelScale + fresnelOffset
+    );
+}
+
 void main()
 {
     mirrorClip(vary_position);
@@ -148,30 +194,23 @@ void main()
     //normalize view vector
     vec3 viewVec = normalize(pos.xyz);
 
-    //get wave normals
-    vec2 bigwave = vec2(refCoord.w, view.w);
-    vec3 wave1_a = texture(bumpMap, bigwave, -2      ).xyz*2.0-1.0;
-    vec3 wave2_a = texture(bumpMap, littleWave.xy).xyz*2.0-1.0;
-    vec3 wave3_a = texture(bumpMap, littleWave.zw).xyz*2.0-1.0;
-
-    vec3 wave1_b = texture(bumpMap2, bigwave      ).xyz*2.0-1.0;
-    vec3 wave2_b = texture(bumpMap2, littleWave.xy).xyz*2.0-1.0;
-    vec3 wave3_b = texture(bumpMap2, littleWave.zw).xyz*2.0-1.0;
+    // Setup our waves.
 
-    //wave1_a = wave2_a = wave3_a = wave1_b = wave2_b = wave3_b = vec3(0,0,1);
+    vec3 wave1 = vec3(0, 0, 1);
+    vec3 wave2 = vec3(0, 0, 1);
+    vec3 wave3 = vec3(0, 0, 1);
 
-    vec3 wave1 = BlendNormal(wave1_a, wave1_b);
-    vec3 wave2 = BlendNormal(wave2_a, wave2_b);
-    vec3 wave3 = BlendNormal(wave3_a, wave3_b);
+    generateWaveNormals(wave1, wave2, wave3);
 
     vec2 distort = (refCoord.xy/refCoord.z) * 0.5 + 0.5;
 
-    //wave1 = transform_normal(wave1);
-    //wave2 = transform_normal(wave2);
-    //wave3 = transform_normal(wave3);
-
     vec3 wavef = (wave1 + wave2 * 0.4 + wave3 * 0.6) * 0.5;
 
+    vec3 df3 = vec3(0);
+    vec2 df2 = vec2(0);
+
+    calculateFresnelFactors(df3, df2, normalize(view.xyz), wave1, wave2, wave3, wavef);
+
     vec3 waver = wavef*3;
 
     vec3 up = transform_normal(vec3(0,0,1));
@@ -197,7 +236,7 @@ void main()
     float dmod = sqrt(dist);
 
     //figure out distortion vector (ripply)
-    vec2 distort2 = distort + waver.xy * refScale / max(dmod, 1.0);
+    vec2 distort2 = distort + waver.xy * refScale / max(dmod, 1.0) * 2;
 
     distort2 = clamp(distort2, vec2(0), vec2(0.999));
 
@@ -217,8 +256,8 @@ void main()
     vec3 sunlit_linear = srgb_to_linear(sunlit);
 
 #ifdef TRANSPARENT_WATER
-    vec4 fb = texture(screenTex, distort2);
     float depth = texture(depthMap, distort2).r;
+    vec4 fb = texture(screenTex, distort2);
     vec3 refPos = getPositionWithNDC(vec3(distort2*2.0-vec2(1.0), depth*2.0-1.0));
 
     if (refPos.z > pos.z-0.05)
@@ -234,18 +273,16 @@ void main()
     vec4 fb = applyWaterFogViewLinear(viewVec*2048.0, vec4(1.0));
 #endif
 
-    // fudge sample on other side of water to be a tad darker
-    fb.rgb *= 0.75;
-
-    float metallic = 0.0;
-    float perceptualRoughness = 0.05;
-    float gloss      = 1.0 - perceptualRoughness;
+    float metallic = 1.0;
+    float perceptualRoughness = 0.1;
+    float gloss      = 0.95;
 
     vec3  irradiance = vec3(0);
     vec3  radiance  = vec3(0);
+    vec3 legacyenv = vec3(0);
     sampleReflectionProbesWater(irradiance, radiance, distort2, pos.xyz, wave_ibl.xyz, gloss, amblit);
-
-    irradiance       = vec3(0);
+    //sampleReflectionProbes(irradiance, radiance, distort2, pos.xyz, wave_ibl.xyz, 1, true, amblit);
+    //sampleReflectionProbesLegacy(irradiance, radiance, legacyenv, distort2, pos.xyz, wave_ibl.xyz, gloss, 1, false, amblit);
 
     vec3 diffuseColor = vec3(0);
     vec3 specularColor = vec3(0);
@@ -257,46 +294,22 @@ void main()
     float ao = 1.0;
     vec3 light_dir = transform_normal(lightDir);
 
-    perceptualRoughness = 0.0;
-    metallic = 1.0;
-
     float NdotV = clamp(abs(dot(norm, v)), 0.001, 1.0);
 
     float nl = 0;
     vec3 diffPunc = vec3(0);
     vec3 specPunc = vec3(0);
 
-    pbrPunctual(vec3(0), specularColor, 0.1, 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));
-
-    vec3 color = punctual * sunlit_linear * 2.75 * shadow;
-    vec3 iblDiff;
-    vec3 iblSpec;
-    pbrIbl(vec3(0), vec3(1), radiance, vec3(0), ao, NdotV, 0.0, iblDiff, iblSpec);
-
-    color += iblDiff + iblSpec;
-
-    float nv = clamp(abs(dot(norm.xyz, v)), 0.001, 1.0);
-    vec2 brdf = BRDF(clamp(nv, 0, 1), 1.0);
-    float f = 1.0-brdf.y; //1.0 - (brdf.x+brdf.y);
-    f *= 0.9;
-    f *= f;
-
-    // incoming scale is [0, 1] with 0.5 being default
-    // shift to 0.5 to 1.5
-    f *= (fresnelScale - 0.5)+1.0;
+    pbrPunctual(diffuseColor, specularColor, perceptualRoughness, metallic, normalize(wavef+up*max(dist, 32.0)/32.0*(1.0-vdu)), v, normalize(light_dir), nl, diffPunc, specPunc);
 
-    // incoming offset is [0, 1] with 0.5 being default
-    // shift from -1 to 1
-    f += (fresnelOffset - 0.5) * 2.0;
+    vec3 punctual = clamp(nl * (diffPunc + specPunc), vec3(0), vec3(10)) * sunlit_linear * 2.75 * shadow;
 
-    f = clamp(f, 0, 1);
+    vec3 color = vec3(0);
 
-    color = ((1.0 - f) * color) + fb.rgb;
+    color = mix(fb.rgb, radiance * df2.x, df2.x * 0.99999) + punctual.rgb;
 
     float spec = min(max(max(punctual.r, punctual.g), punctual.b), 0.05);
 
-    frag_color = max(vec4(color, spec), vec4(0));
+    frag_color = max(vec4(color.rgb, spec), vec4(0));
 }
 
-- 
cgit v1.2.3


From 317cd6e66e65256eda6441c06fa32e55eee99fa3 Mon Sep 17 00:00:00 2001
From: "Jonathan \"Geenz\" Goodman" <geenz@lindenlab.com>
Date: Thu, 6 Feb 2025 02:44:16 -0500
Subject: Add some haze to the distance on water. (#3508)

* #3507 Add distance haze to water to get us closer to 6.6.17's appearance.
---
 .../shaders/class3/deferred/reflectionProbeF.glsl  |  3 --
 .../shaders/class3/environment/waterF.glsl         | 63 +++++++++++++++-------
 2 files changed, 43 insertions(+), 23 deletions(-)

(limited to 'indra/newview/app_settings/shaders')

diff --git a/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl b/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl
index a975b1f121..136b3dd966 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/reflectionProbeF.glsl
@@ -789,9 +789,6 @@ void sampleReflectionProbesWater(inout vec3 ambenv, inout vec3 glossenv,
     probeIndex[probeInfluences++] = 0;
 
     doProbeSample(ambenv, glossenv, tc, pos, norm, glossiness, false, amblit);
-
-    // fudge factor to get PBR water at a similar luminance ot legacy water
-    glossenv *= 0.4;
 }
 
 void debugTapRefMap(vec3 pos, vec3 dir, float depth, int i, inout vec4 col)
diff --git a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
index f9e300070d..f8aa684433 100644
--- a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
@@ -25,6 +25,8 @@
 
 // class3/environment/waterF.glsl
 
+#define WATER_MINIMAL 1
+
 out vec4 frag_color;
 
 #ifdef HAS_SUN_SHADOW
@@ -122,6 +124,9 @@ vec3 BlendNormal(vec3 bump1, vec3 bump2)
 vec3 srgb_to_linear(vec3 col);
 vec3 linear_to_srgb(vec3 col);
 
+vec3 atmosLighting(vec3 light);
+vec3 scaleSoftClip(vec3 light);
+
 vec3 vN, vT, vB;
 
 vec3 transform_normal(vec3 vNt)
@@ -148,7 +153,7 @@ void generateWaveNormals(out vec3 wave1, out vec3 wave2, out vec3 wave3)
 
     vec2 bigwave = vec2(refCoord.w, view.w);
 
-    vec3 wave1_a = texture(bumpMap, bigwave, -2).xyz * 2.0 - 1.0;
+    vec3 wave1_a = texture(bumpMap, bigwave).xyz * 2.0 - 1.0;
     vec3 wave2_a = texture(bumpMap, littleWave.xy).xyz * 2.0 - 1.0;
     vec3 wave3_a = texture(bumpMap, littleWave.zw).xyz * 2.0 - 1.0;
 
@@ -183,6 +188,7 @@ void calculateFresnelFactors(out vec3 df3, out vec2 df2, vec3 viewVec, vec3 wave
 void main()
 {
     mirrorClip(vary_position);
+
     vN = vary_normal;
     vT = vary_tangent;
     vB = cross(vN, vT);
@@ -202,6 +208,7 @@ void main()
 
     generateWaveNormals(wave1, wave2, wave3);
 
+    float dmod = sqrt(dist);
     vec2 distort = (refCoord.xy/refCoord.z) * 0.5 + 0.5;
 
     vec3 wavef = (wave1 + wave2 * 0.4 + wave3 * 0.6) * 0.5;
@@ -216,7 +223,7 @@ void main()
     vec3 up = transform_normal(vec3(0,0,1));
     float vdu = -dot(viewVec, up)*2;
 
-    vec3 wave_ibl = wavef;
+    vec3 wave_ibl = wavef * normScale;
     wave_ibl.z *= 2.0;
     wave_ibl = transform_normal(normalize(wave_ibl));
 
@@ -233,8 +240,6 @@ void main()
     float dist2 = dist;
     dist = max(dist, 5.0);
 
-    float dmod = sqrt(dist);
-
     //figure out distortion vector (ripply)
     vec2 distort2 = distort + waver.xy * refScale / max(dmod, 1.0) * 2;
 
@@ -254,21 +259,27 @@ void main()
     calcAtmosphericVarsLinear(pos.xyz, wavef, vary_light_dir, sunlit, amblit, additive, atten);
 
     vec3 sunlit_linear = srgb_to_linear(sunlit);
-
+    float fade = 0;
 #ifdef TRANSPARENT_WATER
-    float depth = texture(depthMap, distort2).r;
-    vec4 fb = texture(screenTex, distort2);
-    vec3 refPos = getPositionWithNDC(vec3(distort2*2.0-vec2(1.0), depth*2.0-1.0));
+    float depth = texture(depthMap, distort).r;
+
+    vec3 refPos = getPositionWithNDC(vec3(distort*2.0-vec2(1.0), depth*2.0-1.0));
 
-    if (refPos.z > pos.z-0.05)
+    // Calculate some distance fade in the water to better assist with refraction blending and reducing the refraction texture's "disconnect".
+    fade = max(0,min(1, (pos.z - refPos.z) / 10));
+    distort2 = mix(distort, distort2, min(1, fade * 10));
+
+    depth = texture(depthMap, distort2).r;
+
+    refPos = getPositionWithNDC(vec3(distort2 * 2.0 - vec2(1.0), depth * 2.0 - 1.0));
+
+    if (pos.z < refPos.z - 0.05)
     {
-        //we sampled an above water sample, don't distort
         distort2 = distort;
-        fb = texture(screenTex, distort2);
-        depth = texture(depthMap, distort2).r;
-        refPos = getPositionWithNDC(vec3(distort2 * 2.0 - vec2(1.0), depth * 2.0 - 1.0));
     }
 
+    vec4 fb = texture(screenTex, distort2);
+
 #else
     vec4 fb = applyWaterFogViewLinear(viewVec*2048.0, vec4(1.0));
 #endif
@@ -280,13 +291,18 @@ void main()
     vec3  irradiance = vec3(0);
     vec3  radiance  = vec3(0);
     vec3 legacyenv = vec3(0);
+
+    // TODO: Make this an option.
+#ifdef WATER_MINIMAL
     sampleReflectionProbesWater(irradiance, radiance, distort2, pos.xyz, wave_ibl.xyz, gloss, amblit);
-    //sampleReflectionProbes(irradiance, radiance, distort2, pos.xyz, wave_ibl.xyz, 1, true, amblit);
-    //sampleReflectionProbesLegacy(irradiance, radiance, legacyenv, distort2, pos.xyz, wave_ibl.xyz, gloss, 1, false, amblit);
+#elif WATER_MINIMAL_PLUS
+    sampleReflectionProbes(irradiance, radiance, distort2, pos.xyz, wave_ibl.xyz, 1, false, amblit);
+#endif
 
     vec3 diffuseColor = vec3(0);
     vec3 specularColor = vec3(0);
-    calcDiffuseSpecular(vec3(1), metallic, diffuseColor, specularColor);
+    vec3 specular_linear = srgb_to_linear(specular);
+    calcDiffuseSpecular(specular_linear, metallic, diffuseColor, specularColor);
 
     vec3 v = -normalize(pos.xyz);
 
@@ -302,14 +318,21 @@ 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 * 2.75 * shadow;
+    vec3 punctual = clamp(nl * (diffPunc + specPunc), vec3(0), vec3(10)) * sunlit_linear * shadow;
 
     vec3 color = vec3(0);
+    color = mix(fb.rgb, radiance * df2.y, df2.x * 0.99999) + punctual.rgb;
 
-    color = mix(fb.rgb, radiance * df2.x, df2.x * 0.99999) + punctual.rgb;
+    // This looks super janky, but we do this to restore water haze in the distance.
+    // These values were finagled in to try and bring back some of the distant brightening on legacy water.  Also works reasonably well on PBR skies such as PBR midday.
+    color += color * min(vec3(4),pow(1 - atten, vec3(1.35)) * 16 * fade);
 
-    float spec = min(max(max(punctual.r, punctual.g), punctual.b), 0.05);
+    // We shorten the fade here at the shoreline so it doesn't appear too soft from a distance.
+    fade *= 60;
+    fade = min(1, fade);
+    color = mix(fb.rgb, color, fade);
 
-    frag_color = max(vec4(color.rgb, spec), vec4(0));
+    float spec = min(max(max(punctual.r, punctual.g), punctual.b), 0.05);
+    frag_color = min(vec4(1),max(vec4(color.rgb, spec), vec4(0)));
 }
 
-- 
cgit v1.2.3


From 93a88e602545828c0298b20ff0375f191d1f6d9a Mon Sep 17 00:00:00 2001
From: "Jonathan \"Geenz\" Goodman" <geenz@lindenlab.com>
Date: Fri, 7 Feb 2025 05:55:47 -0500
Subject: Water Exclusion Surfaces (#3517)

* #3455 Add support for water exclusion surfaces
---
 .../shaders/class1/objects/simpleColorF.glsl       | 57 ++++++++++++++++++++++
 .../shaders/class1/objects/simpleNoAtmosV.glsl     | 43 ++++++++++++++++
 .../shaders/class3/deferred/waterHazeF.glsl        | 14 ++++++
 .../shaders/class3/environment/underWaterF.glsl    |  8 ++-
 .../shaders/class3/environment/waterF.glsl         | 13 +++--
 5 files changed, 129 insertions(+), 6 deletions(-)
 create mode 100644 indra/newview/app_settings/shaders/class1/objects/simpleColorF.glsl
 create mode 100644 indra/newview/app_settings/shaders/class1/objects/simpleNoAtmosV.glsl

(limited to 'indra/newview/app_settings/shaders')

diff --git a/indra/newview/app_settings/shaders/class1/objects/simpleColorF.glsl b/indra/newview/app_settings/shaders/class1/objects/simpleColorF.glsl
new file mode 100644
index 0000000000..dea76da5a5
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/objects/simpleColorF.glsl
@@ -0,0 +1,57 @@
+/**
+ * @file simpleColorF.glsl
+ *
+ * $LicenseInfo:firstyear=2025&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+out vec4 frag_color;
+
+in vec4 vertex_color;
+in vec4 vertex_position;
+
+uniform vec4 waterPlane;
+uniform float waterSign;
+
+void waterClip(vec3 pos)
+{
+    // TODO: make this less branchy
+    if (waterSign > 0)
+    {
+        if ((dot(pos.xyz, waterPlane.xyz) + waterPlane.w) < 0.0)
+        {
+            discard;
+        }
+    }
+    else
+    {
+        if ((dot(pos.xyz, waterPlane.xyz) + waterPlane.w) > 0.0)
+        {
+            discard;
+        }
+    }
+}
+
+void main()
+{
+
+    frag_color = vertex_color;
+}
diff --git a/indra/newview/app_settings/shaders/class1/objects/simpleNoAtmosV.glsl b/indra/newview/app_settings/shaders/class1/objects/simpleNoAtmosV.glsl
new file mode 100644
index 0000000000..4564e56313
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/objects/simpleNoAtmosV.glsl
@@ -0,0 +1,43 @@
+/**
+ * @file simpleNoAtmosV.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+uniform mat4 modelview_matrix;
+uniform mat4 modelview_projection_matrix;
+
+uniform vec4 color;
+
+in vec3 position;
+
+out vec4 vertex_color;
+out vec4 vertex_position;
+
+void main()
+{
+    //transform vertex
+    vec4 pos = (modelview_matrix * vec4(position.xyz, 1.0));
+    vertex_position = modelview_projection_matrix * vec4(position.xyz, 1.0);
+    gl_Position = vertex_position;
+    vertex_color = color;
+}
diff --git a/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl b/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl
index ee49b4baae..091c25d15e 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl
@@ -35,13 +35,25 @@ vec4 getWaterFogView(vec3 pos);
 
 uniform int above_water;
 
+uniform sampler2D exclusionTex;
+
 void main()
 {
     vec2  tc           = vary_fragcoord.xy/vary_fragcoord.w*0.5+0.5;
     float depth        = getDepth(tc.xy);
+    float mask = texture(exclusionTex, tc.xy).r;
 
     if (above_water > 0)
     {
+        // Just discard if we're in the exclusion mask.
+        // The previous invisiprim hack we're replacing would also crank up water fog desntiy.
+        // But doing that makes exclusion surfaces very slow as we'd need to render even more into the mask.
+        // - Geenz 2025-02-06
+        if (mask < 1)
+        {
+            discard;
+        }
+
         // we want to depth test when the camera is above water, but some GPUs have a hard time
         // with depth testing against render targets that are bound for sampling in the same shader
         // so we do it manually here
@@ -51,12 +63,14 @@ void main()
         {
             discard;
         }
+
     }
 
     vec4  pos          = getPositionWithDepth(tc, depth);
 
     vec4 fogged = getWaterFogView(pos.xyz);
     fogged.a = max(pow(fogged.a, 1.7), 0);
+
     frag_color = max(fogged, vec4(0)); //output linear since local lights will be added to this shader's results
 
 }
diff --git a/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl b/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl
index 1c02dc764d..fa410e9f11 100644
--- a/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl
+++ b/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl
@@ -26,6 +26,7 @@
 out vec4 frag_color;
 
 uniform sampler2D bumpMap;
+uniform sampler2D exclusionTex;
 
 #ifdef TRANSPARENT_WATER
 uniform sampler2D screenTex;
@@ -59,6 +60,9 @@ void mirrorClip(vec3 position);
 void main()
 {
     mirrorClip(vary_position);
+    vec2 screen_tc = (refCoord.xy/refCoord.z) * 0.5 + 0.5;
+    float water_mask = texture(exclusionTex, screen_tc).r;
+
     vec4 color;
 
     //get detail normals
@@ -68,8 +72,8 @@ void main()
     vec3 wavef = normalize(wave1+wave2+wave3);
 
     //figure out distortion vector (ripply)
-    vec2 distort = (refCoord.xy/refCoord.z) * 0.5 + 0.5;
-    distort = distort+wavef.xy*refScale;
+    vec2 distort = screen_tc;
+    distort = mix(distort, distort+wavef.xy*refScale, water_mask);
 
 #ifdef TRANSPARENT_WATER
     vec4 fb = texture(screenTex, distort);
diff --git a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
index f8aa684433..7027e3796e 100644
--- a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
@@ -88,7 +88,7 @@ uniform sampler2D screenTex;
 uniform sampler2D depthMap;
 #endif
 
-uniform sampler2D refTex;
+uniform sampler2D exclusionTex;
 
 uniform float sunAngle;
 uniform float sunAngle2;
@@ -252,6 +252,8 @@ void main()
 
     float shadow = 1.0f;
 
+    float water_mask = texture(exclusionTex, distort).r;
+
 #ifdef HAS_SUN_SHADOW
     shadow = sampleDirectionalShadow(pos.xyz, norm.xyz, distort);
 #endif
@@ -266,9 +268,8 @@ 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,min(1, (pos.z - refPos.z) / 10));
+    fade = max(0,min(1, (pos.z - refPos.z) / 10)) * water_mask;
     distort2 = mix(distort, distort2, min(1, fade * 10));
-
     depth = texture(depthMap, distort2).r;
 
     refPos = getPositionWithNDC(vec3(distort2 * 2.0 - vec2(1.0), depth * 2.0 - 1.0));
@@ -282,6 +283,9 @@ void main()
 
 #else
     vec4 fb = applyWaterFogViewLinear(viewVec*2048.0, vec4(1.0));
+
+    if (water_mask < 1)
+        discard;
 #endif
 
     float metallic = 1.0;
@@ -333,6 +337,7 @@ void main()
     color = mix(fb.rgb, color, fade);
 
     float spec = min(max(max(punctual.r, punctual.g), punctual.b), 0.05);
-    frag_color = min(vec4(1),max(vec4(color.rgb, spec), vec4(0)));
+
+    frag_color = min(vec4(1),max(vec4(color.rgb, spec * water_mask), vec4(0)));
 }
 
-- 
cgit v1.2.3


From d450295cf517784744552acb2e885a1657a60f7e Mon Sep 17 00:00:00 2001
From: "Jonathan \"Geenz\" Goodman" <geenz@lindenlab.com>
Date: Tue, 11 Feb 2025 13:49:24 -0500
Subject: Additional water fixes and tweaks. (#3524)

* Incorporation of feedback for #3456
---
 .../class1/deferred/postDeferredTonemap.glsl       | 129 +--------------
 .../shaders/class1/deferred/tonemapUtilF.glsl      | 180 +++++++++++++++++++++
 .../shaders/class3/environment/waterF.glsl         |  55 +++----
 3 files changed, 209 insertions(+), 155 deletions(-)
 create mode 100644 indra/newview/app_settings/shaders/class1/deferred/tonemapUtilF.glsl

(limited to 'indra/newview/app_settings/shaders')

diff --git a/indra/newview/app_settings/shaders/class1/deferred/postDeferredTonemap.glsl b/indra/newview/app_settings/shaders/class1/deferred/postDeferredTonemap.glsl
index fc6d4d7727..c4610bffac 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/postDeferredTonemap.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/postDeferredTonemap.glsl
@@ -28,138 +28,11 @@
 out vec4 frag_color;
 
 uniform sampler2D diffuseRect;
-uniform sampler2D exposureMap;
 
-uniform vec2 screen_res;
 in vec2 vary_fragcoord;
 
 vec3 linear_to_srgb(vec3 cl);
-
-//===============================================================
-// tone mapping taken from Khronos sample implementation
-//===============================================================
-
-// sRGB => XYZ => D65_2_D60 => AP1 => RRT_SAT
-const mat3 ACESInputMat = mat3
-(
-    0.59719, 0.07600, 0.02840,
-    0.35458, 0.90834, 0.13383,
-    0.04823, 0.01566, 0.83777
-);
-
-
-// ODT_SAT => XYZ => D60_2_D65 => sRGB
-const mat3 ACESOutputMat = mat3
-(
-    1.60475, -0.10208, -0.00327,
-    -0.53108,  1.10813, -0.07276,
-    -0.07367, -0.00605,  1.07602
-);
-
-// ACES tone map (faster approximation)
-// see: https://knarkowicz.wordpress.com/2016/01/06/aces-filmic-tone-mapping-curve/
-vec3 toneMapACES_Narkowicz(vec3 color)
-{
-    const float A = 2.51;
-    const float B = 0.03;
-    const float C = 2.43;
-    const float D = 0.59;
-    const float E = 0.14;
-    return clamp((color * (A * color + B)) / (color * (C * color + D) + E), 0.0, 1.0);
-}
-
-
-// ACES filmic tone map approximation
-// see https://github.com/TheRealMJP/BakingLab/blob/master/BakingLab/ACES.hlsl
-vec3 RRTAndODTFit(vec3 color)
-{
-    vec3 a = color * (color + 0.0245786) - 0.000090537;
-    vec3 b = color * (0.983729 * color + 0.4329510) + 0.238081;
-    return a / b;
-}
-
-
-// tone mapping
-vec3 toneMapACES_Hill(vec3 color)
-{
-    color = ACESInputMat * color;
-
-    // Apply RRT and ODT
-    color = RRTAndODTFit(color);
-
-    color = ACESOutputMat * color;
-
-    // Clamp to [0, 1]
-    color = clamp(color, 0.0, 1.0);
-
-    return color;
-}
-
-// Khronos Neutral tonemapping
-// https://github.com/KhronosGroup/ToneMapping/tree/main
-// Input color is non-negative and resides in the Linear Rec. 709 color space.
-// Output color is also Linear Rec. 709, but in the [0, 1] range.
-vec3 PBRNeutralToneMapping( vec3 color )
-{
-  const float startCompression = 0.8 - 0.04;
-  const float desaturation = 0.15;
-
-  float x = min(color.r, min(color.g, color.b));
-  float offset = x < 0.08 ? x - 6.25 * x * x : 0.04;
-  color -= offset;
-
-  float peak = max(color.r, max(color.g, color.b));
-  if (peak < startCompression) return color;
-
-  const float d = 1. - startCompression;
-  float newPeak = 1. - d * d / (peak + d - startCompression);
-  color *= newPeak / peak;
-
-  float g = 1. - 1. / (desaturation * (peak - newPeak) + 1.);
-  return mix(color, newPeak * vec3(1, 1, 1), g);
-}
-
-uniform float exposure;
-uniform float tonemap_mix;
-uniform int tonemap_type;
-
-vec3 toneMap(vec3 color)
-{
-#ifndef NO_POST
-    float exp_scale = texture(exposureMap, vec2(0.5,0.5)).r;
-
-    color *= exposure * exp_scale;
-
-    vec3 clamped_color = clamp(color.rgb, vec3(0.0), vec3(1.0));
-
-    switch(tonemap_type)
-    {
-    case 0:
-        color = PBRNeutralToneMapping(color);
-        break;
-    case 1:
-        color = toneMapACES_Hill(color);
-        break;
-    }
-
-    // mix tonemapped and linear here to provide adjustment
-    color = mix(clamped_color, color, tonemap_mix);
-#endif
-
-    return color;
-}
-
-//===============================================================
-
-void debugExposure(inout vec3 color)
-{
-    float exp_scale = texture(exposureMap, vec2(0.5,0.5)).r;
-    exp_scale *= 0.5;
-    if (abs(vary_fragcoord.y-exp_scale) < 0.01 && vary_fragcoord.x < 0.1)
-    {
-        color = vec3(1,0,0);
-    }
-}
+vec3 toneMap(vec3 color);
 
 void main()
 {
diff --git a/indra/newview/app_settings/shaders/class1/deferred/tonemapUtilF.glsl b/indra/newview/app_settings/shaders/class1/deferred/tonemapUtilF.glsl
new file mode 100644
index 0000000000..a63b8d7c2b
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/tonemapUtilF.glsl
@@ -0,0 +1,180 @@
+/**
+ * @file postDeferredTonemap.glsl
+ *
+ * $LicenseInfo:firstyear=2024&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2024, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+/*[EXTRA_CODE_HERE]*/
+
+uniform sampler2D exposureMap;
+uniform vec2 screen_res;
+in vec2 vary_fragcoord;
+
+//===============================================================
+// tone mapping taken from Khronos sample implementation
+//===============================================================
+
+// sRGB => XYZ => D65_2_D60 => AP1 => RRT_SAT
+const mat3 ACESInputMat = mat3
+(
+    0.59719, 0.07600, 0.02840,
+    0.35458, 0.90834, 0.13383,
+    0.04823, 0.01566, 0.83777
+);
+
+
+// ODT_SAT => XYZ => D60_2_D65 => sRGB
+const mat3 ACESOutputMat = mat3
+(
+    1.60475, -0.10208, -0.00327,
+    -0.53108,  1.10813, -0.07276,
+    -0.07367, -0.00605,  1.07602
+);
+
+// ACES tone map (faster approximation)
+// see: https://knarkowicz.wordpress.com/2016/01/06/aces-filmic-tone-mapping-curve/
+vec3 toneMapACES_Narkowicz(vec3 color)
+{
+    const float A = 2.51;
+    const float B = 0.03;
+    const float C = 2.43;
+    const float D = 0.59;
+    const float E = 0.14;
+    return clamp((color * (A * color + B)) / (color * (C * color + D) + E), 0.0, 1.0);
+}
+
+
+// ACES filmic tone map approximation
+// see https://github.com/TheRealMJP/BakingLab/blob/master/BakingLab/ACES.hlsl
+vec3 RRTAndODTFit(vec3 color)
+{
+    vec3 a = color * (color + 0.0245786) - 0.000090537;
+    vec3 b = color * (0.983729 * color + 0.4329510) + 0.238081;
+    return a / b;
+}
+
+
+// tone mapping
+vec3 toneMapACES_Hill(vec3 color)
+{
+    color = ACESInputMat * color;
+
+    // Apply RRT and ODT
+    color = RRTAndODTFit(color);
+
+    color = ACESOutputMat * color;
+
+    // Clamp to [0, 1]
+    color = clamp(color, 0.0, 1.0);
+
+    return color;
+}
+
+// Khronos Neutral tonemapping
+// https://github.com/KhronosGroup/ToneMapping/tree/main
+// Input color is non-negative and resides in the Linear Rec. 709 color space.
+// Output color is also Linear Rec. 709, but in the [0, 1] range.
+vec3 PBRNeutralToneMapping( vec3 color )
+{
+  const float startCompression = 0.8 - 0.04;
+  const float desaturation = 0.15;
+
+  float x = min(color.r, min(color.g, color.b));
+  float offset = x < 0.08 ? x - 6.25 * x * x : 0.04;
+  color -= offset;
+
+  float peak = max(color.r, max(color.g, color.b));
+  if (peak < startCompression) return color;
+
+  const float d = 1. - startCompression;
+  float newPeak = 1. - d * d / (peak + d - startCompression);
+  color *= newPeak / peak;
+
+  float g = 1. - 1. / (desaturation * (peak - newPeak) + 1.);
+  return mix(color, newPeak * vec3(1, 1, 1), g);
+}
+
+uniform float exposure;
+uniform float tonemap_mix;
+uniform int tonemap_type;
+
+vec3 toneMap(vec3 color)
+{
+#ifndef NO_POST
+    float exp_scale = texture(exposureMap, vec2(0.5,0.5)).r;
+
+    color *= exposure * exp_scale;
+
+    vec3 clamped_color = clamp(color.rgb, vec3(0.0), vec3(1.0));
+
+    switch(tonemap_type)
+    {
+    case 0:
+        color = PBRNeutralToneMapping(color);
+        break;
+    case 1:
+        color = toneMapACES_Hill(color);
+        break;
+    }
+
+    // mix tonemapped and linear here to provide adjustment
+    color = mix(clamped_color, color, tonemap_mix);
+#endif
+
+    return color;
+}
+
+
+vec3 toneMapNoExposure(vec3 color)
+{
+#ifndef NO_POST
+    vec3 clamped_color = clamp(color.rgb, vec3(0.0), vec3(1.0));
+
+    switch(tonemap_type)
+    {
+    case 0:
+        color = PBRNeutralToneMapping(color);
+        break;
+    case 1:
+        color = toneMapACES_Hill(color);
+        break;
+    }
+
+    // mix tonemapped and linear here to provide adjustment
+    color = mix(clamped_color, color, tonemap_mix);
+#endif
+
+    return color;
+}
+
+
+//===============================================================
+
+void debugExposure(inout vec3 color)
+{
+    float exp_scale = texture(exposureMap, vec2(0.5,0.5)).r;
+    exp_scale *= 0.5;
+    if (abs(vary_fragcoord.y-exp_scale) < 0.01 && vary_fragcoord.x < 0.1)
+    {
+        color = vec3(1,0,0);
+    }
+}
diff --git a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
index 7027e3796e..c56e38d016 100644
--- a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
@@ -90,21 +90,15 @@ uniform sampler2D depthMap;
 
 uniform sampler2D exclusionTex;
 
-uniform float sunAngle;
-uniform float sunAngle2;
+uniform int classic_mode;
 uniform vec3 lightDir;
 uniform vec3 specular;
-uniform float lightExp;
+uniform float blurMultiplier;
 uniform float refScale;
 uniform float kd;
-uniform vec2 screenRes;
 uniform vec3 normScale;
 uniform float fresnelScale;
 uniform float fresnelOffset;
-uniform float blurMultiplier;
-uniform vec4 waterFogColor;
-uniform vec3 waterFogColorLinear;
-
 
 //bigWave is (refCoord.w, view.w);
 in vec4 refCoord;
@@ -126,6 +120,7 @@ vec3 linear_to_srgb(vec3 col);
 
 vec3 atmosLighting(vec3 light);
 vec3 scaleSoftClip(vec3 light);
+vec3 toneMapNoExposure(vec3 color);
 
 vec3 vN, vT, vB;
 
@@ -171,18 +166,18 @@ void calculateFresnelFactors(out vec3 df3, out vec2 df2, vec3 viewVec, vec3 wave
     // We calculate the fresnel here.
     // We do this by getting the dot product for each sets of waves, and applying scale and offset.
 
-    df3 = vec3(
+    df3 = max(vec3(0), vec3(
         dot(viewVec, wave1),
         dot(viewVec, (wave2 + wave3) * 0.5),
         dot(viewVec, wave3)
-    ) * fresnelScale + fresnelOffset;
+    ) * fresnelScale + fresnelOffset);
 
     df3 *= df3;
 
-    df2 = vec2(
+    df2 = max(vec2(0), vec2(
         df3.x + df3.y + df3.z,
         dot(viewVec, wavef) * fresnelScale + fresnelOffset
-    );
+    ));
 }
 
 void main()
@@ -194,6 +189,7 @@ void main()
     vB = cross(vN, vT);
 
     vec3 pos = vary_position.xyz;
+    float linear_depth = 1 / -pos.z;
 
     float dist = length(pos.xyz);
 
@@ -216,6 +212,12 @@ void main()
     vec3 df3 = vec3(0);
     vec2 df2 = vec2(0);
 
+    vec3 sunlit;
+    vec3 amblit;
+    vec3 additive;
+    vec3 atten;
+    calcAtmosphericVarsLinear(pos.xyz, wavef, vary_light_dir, sunlit, amblit, additive, atten);
+
     calculateFresnelFactors(df3, df2, normalize(view.xyz), wave1, wave2, wave3, wavef);
 
     vec3 waver = wavef*3;
@@ -230,7 +232,7 @@ void main()
     vec3 norm = transform_normal(normalize(wavef));
 
     vdu = clamp(vdu, 0, 1);
-    wavef.z *= max(vdu*vdu*vdu, 0.1);
+    //wavef.z *= max(vdu*vdu*vdu, 0.1);
 
     wavef = normalize(wavef);
 
@@ -245,11 +247,6 @@ void main()
 
     distort2 = clamp(distort2, vec2(0), vec2(0.999));
 
-    vec3 sunlit;
-    vec3 amblit;
-    vec3 additive;
-    vec3 atten;
-
     float shadow = 1.0f;
 
     float water_mask = texture(exclusionTex, distort).r;
@@ -258,8 +255,6 @@ void main()
     shadow = sampleDirectionalShadow(pos.xyz, norm.xyz, distort);
 #endif
 
-    calcAtmosphericVarsLinear(pos.xyz, wavef, vary_light_dir, sunlit, amblit, additive, atten);
-
     vec3 sunlit_linear = srgb_to_linear(sunlit);
     float fade = 0;
 #ifdef TRANSPARENT_WATER
@@ -289,8 +284,8 @@ void main()
 #endif
 
     float metallic = 1.0;
-    float perceptualRoughness = 0.1;
-    float gloss      = 0.95;
+    float perceptualRoughness = blurMultiplier;
+    float gloss      = 1 - perceptualRoughness;
 
     vec3  irradiance = vec3(0);
     vec3  radiance  = vec3(0);
@@ -300,7 +295,7 @@ void main()
 #ifdef WATER_MINIMAL
     sampleReflectionProbesWater(irradiance, radiance, distort2, pos.xyz, wave_ibl.xyz, gloss, amblit);
 #elif WATER_MINIMAL_PLUS
-    sampleReflectionProbes(irradiance, radiance, distort2, pos.xyz, wave_ibl.xyz, 1, false, amblit);
+    sampleReflectionProbes(irradiance, radiance, distort2, pos.xyz, wave_ibl.xyz, gloss, false, amblit);
 #endif
 
     vec3 diffuseColor = vec3(0);
@@ -323,20 +318,26 @@ 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;
-
+    radiance *= df2.y;
+    //radiance = toneMapNoExposure(radiance);
     vec3 color = vec3(0);
-    color = mix(fb.rgb, radiance * df2.y, df2.x * 0.99999) + punctual.rgb;
+    color = mix(fb.rgb, radiance, min(1, df2.x)) + punctual.rgb;
+
+    float water_haze_scale = 4;
+
+    if (classic_mode > 0)
+        water_haze_scale = 1;
 
     // This looks super janky, but we do this to restore water haze in the distance.
     // These values were finagled in to try and bring back some of the distant brightening on legacy water.  Also works reasonably well on PBR skies such as PBR midday.
-    color += color * min(vec3(4),pow(1 - atten, vec3(1.35)) * 16 * fade);
+    // color = mix(color, additive * water_haze_scale, (1 - atten));
 
     // We shorten the fade here at the shoreline so it doesn't appear too soft from a distance.
     fade *= 60;
     fade = min(1, fade);
     color = mix(fb.rgb, color, fade);
 
-    float spec = min(max(max(punctual.r, punctual.g), punctual.b), 0.05);
+    float spec = min(max(max(punctual.r, punctual.g), punctual.b), 0);
 
     frag_color = min(vec4(1),max(vec4(color.rgb, spec * water_mask), vec4(0)));
 }
-- 
cgit v1.2.3


From 9b0c167b84f4f5a1f691ab57270dc30fa58bc800 Mon Sep 17 00:00:00 2001
From: Andrey Kleshchev <andreykproductengine@lindenlab.com>
Date: Mon, 17 Feb 2025 22:22:37 +0200
Subject: #3557 Waves not applying without Transparent Water

---
 indra/newview/app_settings/shaders/class3/environment/waterF.glsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'indra/newview/app_settings/shaders')

diff --git a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
index c56e38d016..35b2f8bd10 100644
--- a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
+++ b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
@@ -256,7 +256,7 @@ void main()
 #endif
 
     vec3 sunlit_linear = srgb_to_linear(sunlit);
-    float fade = 0;
+    float fade = 1;
 #ifdef TRANSPARENT_WATER
     float depth = texture(depthMap, distort).r;
 
-- 
cgit v1.2.3