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-rw-r--r--indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl81
-rw-r--r--indra/newview/app_settings/shaders/class3/environment/waterF.glsl291
2 files changed, 372 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl b/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl
new file mode 100644
index 0000000000..e99ad5b474
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl
@@ -0,0 +1,81 @@
+/**
+ * @file class3\environment\underWaterF.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
+ * $/LicenseInfo$
+ */
+
+out vec4 frag_color;
+
+uniform sampler2D diffuseMap;
+uniform sampler2D bumpMap;
+
+#ifdef TRANSPARENT_WATER
+uniform sampler2D screenTex;
+uniform sampler2D screenDepth;
+#endif
+
+uniform vec4 fogCol;
+uniform vec3 lightDir;
+uniform vec3 specular;
+uniform float lightExp;
+uniform vec2 fbScale;
+uniform float refScale;
+uniform float znear;
+uniform float zfar;
+uniform float kd;
+uniform vec4 waterPlane;
+uniform vec3 eyeVec;
+uniform vec4 waterFogColor;
+uniform vec3 waterFogColorLinear;
+uniform float waterFogKS;
+uniform vec2 screenRes;
+
+//bigWave is (refCoord.w, view.w);
+in vec4 refCoord;
+in vec4 littleWave;
+in vec4 view;
+in vec3 vary_position;
+
+vec4 applyWaterFogViewLinearNoClip(vec3 pos, vec4 color, vec3 sunlit);
+
+void main()
+{
+ vec4 color;
+
+ //get detail normals
+ vec3 wave1 = texture(bumpMap, vec2(refCoord.w, view.w)).xyz*2.0-1.0;
+ vec3 wave2 = texture(bumpMap, littleWave.xy).xyz*2.0-1.0;
+ vec3 wave3 = texture(bumpMap, littleWave.zw).xyz*2.0-1.0;
+ 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;
+
+#ifdef TRANSPARENT_WATER
+ vec4 fb = texture(screenTex, distort);
+#else
+ vec4 fb = vec4(waterFogColorLinear, 0.0);
+#endif
+
+ frag_color = max(applyWaterFogViewLinearNoClip(vary_position, fb, vec3(1)), vec4(0));
+}
diff --git a/indra/newview/app_settings/shaders/class3/environment/waterF.glsl b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
new file mode 100644
index 0000000000..ddade462be
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/environment/waterF.glsl
@@ -0,0 +1,291 @@
+/**
+ * @file waterF.glsl
+ *
+ * $LicenseInfo:firstyear=2022&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2022, 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
+ * $/LicenseInfo$
+ */
+
+// class3/environment/waterF.glsl
+
+out vec4 frag_color;
+
+#ifdef HAS_SUN_SHADOW
+float sampleDirectionalShadow(vec3 pos, vec3 norm, vec2 pos_screen);
+#endif
+
+vec3 scaleSoftClipFragLinear(vec3 l);
+vec3 atmosFragLightingLinear(vec3 light, vec3 additive, vec3 atten);
+void calcAtmosphericVarsLinear(vec3 inPositionEye, vec3 norm, vec3 light_dir, out vec3 sunlit, out vec3 amblit, out vec3 atten, out vec3 additive);
+vec4 applyWaterFogViewLinear(vec3 pos, vec4 color, vec3 sunlit);
+
+// PBR interface
+vec2 BRDF(float NoV, float roughness);
+
+void calcDiffuseSpecular(vec3 baseColor, float metallic, inout vec3 diffuseColor, inout vec3 specularColor);
+
+vec3 pbrIbl(vec3 diffuseColor,
+ vec3 specularColor,
+ vec3 radiance, // radiance map sample
+ vec3 irradiance, // irradiance map sample
+ float ao, // ambient occlusion factor
+ float nv, // normal dot view vector
+ float perceptualRoughness);
+
+vec3 pbrPunctual(vec3 diffuseColor, vec3 specularColor,
+ float perceptualRoughness,
+ float metallic,
+ vec3 n, // normal
+ vec3 v, // surface point to camera
+ vec3 l); //surface point to light
+
+vec3 pbrBaseLight(vec3 diffuseColor,
+ vec3 specularColor,
+ float metallic,
+ vec3 pos,
+ vec3 norm,
+ float perceptualRoughness,
+ vec3 light_dir,
+ vec3 sunlit,
+ float scol,
+ vec3 radiance,
+ vec3 irradiance,
+ vec3 colorEmissive,
+ float ao,
+ vec3 additive,
+ vec3 atten);
+
+uniform sampler2D bumpMap;
+uniform sampler2D bumpMap2;
+uniform float blend_factor;
+#ifdef TRANSPARENT_WATER
+uniform sampler2D screenTex;
+uniform sampler2D screenDepth;
+#endif
+
+uniform sampler2D refTex;
+
+uniform float sunAngle;
+uniform float sunAngle2;
+uniform vec3 lightDir;
+uniform vec3 specular;
+uniform float lightExp;
+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;
+in vec4 littleWave;
+in vec4 view;
+in vec3 vary_position;
+in vec3 vary_normal;
+in vec3 vary_tangent;
+in vec3 vary_light_dir;
+
+vec3 BlendNormal(vec3 bump1, vec3 bump2)
+{
+ vec3 n = mix(bump1, bump2, blend_factor);
+ return n;
+}
+
+vec3 srgb_to_linear(vec3 col);
+vec3 linear_to_srgb(vec3 col);
+
+vec3 vN, vT, vB;
+
+vec3 transform_normal(vec3 vNt)
+{
+ return normalize(vNt.x * vT + vNt.y * vB + vNt.z * vN);
+}
+
+void sampleReflectionProbesWater(inout vec3 ambenv, inout vec3 glossenv,
+ vec2 tc, vec3 pos, vec3 norm, float glossiness, vec3 amblit_linear);
+
+vec3 getPositionWithNDC(vec3 ndc);
+
+void main()
+{
+ vN = vary_normal;
+ vT = vary_tangent;
+ vB = cross(vN, vT);
+
+ vec3 pos = vary_position.xyz;
+
+ float dist = length(pos.xyz);
+
+ //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;
+
+ //wave1_a = wave2_a = wave3_a = wave1_b = wave2_b = wave3_b = 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);
+
+ 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 waver = wavef*3;
+
+ vec3 up = transform_normal(vec3(0,0,1));
+ float vdu = -dot(viewVec, up)*2;
+
+ vec3 wave_ibl = wavef;
+ wave_ibl.z *= 2.0;
+ wave_ibl = transform_normal(normalize(wave_ibl));
+
+ vec3 norm = transform_normal(normalize(wavef));
+
+ vdu = clamp(vdu, 0, 1);
+ wavef.z *= max(vdu*vdu*vdu, 0.1);
+
+ wavef = normalize(wavef);
+
+ //wavef = vec3(0, 0, 1);
+ wavef = transform_normal(wavef);
+
+ 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);
+
+ distort2 = clamp(distort2, vec2(0), vec2(0.999));
+
+ vec3 sunlit;
+ vec3 amblit;
+ vec3 additive;
+ vec3 atten;
+
+ float shadow = 1.0f;
+
+#ifdef HAS_SUN_SHADOW
+ 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);
+
+#ifdef TRANSPARENT_WATER
+ vec4 fb = texture(screenTex, distort2);
+ float depth = texture(screenDepth, distort2).r;
+ vec3 refPos = getPositionWithNDC(vec3(distort2*2.0-vec2(1.0), depth*2.0-1.0));
+
+ if (refPos.z > pos.z-0.05)
+ {
+ //we sampled an above water sample, don't distort
+ distort2 = distort;
+ fb = texture(screenTex, distort2);
+ depth = texture(screenDepth, distort2).r;
+ refPos = getPositionWithNDC(vec3(distort2 * 2.0 - vec2(1.0), depth * 2.0 - 1.0));
+ }
+
+ fb = applyWaterFogViewLinear(refPos, fb, sunlit);
+#else
+ vec4 fb = applyWaterFogViewLinear(viewVec*2048.0, vec4(1.0), sunlit_linear);
+#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;
+
+ vec3 irradiance = vec3(0);
+ vec3 radiance = vec3(0);
+ sampleReflectionProbesWater(irradiance, radiance, distort2, pos.xyz, wave_ibl.xyz, gloss, amblit);
+
+ irradiance = vec3(0);
+
+ vec3 diffuseColor = vec3(0);
+ vec3 specularColor = vec3(0);
+ calcDiffuseSpecular(vec3(1), metallic, diffuseColor, specularColor);
+
+ vec3 v = -normalize(pos.xyz);
+
+ vec3 colorEmissive = vec3(0);
+ 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);
+
+ vec3 punctual = pbrPunctual(vec3(0), specularColor, 0.1, metallic, normalize(wavef+up*max(dist, 32.0)/32.0*(1.0-vdu)), v, normalize(light_dir));
+
+ vec3 color = punctual * sunlit_linear * 2.75 * shadow;
+
+ vec3 ibl = pbrIbl(vec3(0), vec3(1), radiance, vec3(0), ao, NdotV, 0.0);
+
+ color += ibl;
+
+ 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;
+
+ // incoming offset is [0, 1] with 0.5 being default
+ // shift from -1 to 1
+ f += (fresnelOffset - 0.5) * 2.0;
+
+ f = clamp(f, 0, 1);
+
+ color = ((1.0 - f) * color) + fb.rgb;
+
+ color = atmosFragLightingLinear(color, additive, atten);
+
+ float spec = min(max(max(punctual.r, punctual.g), punctual.b), 0.05);
+
+ frag_color = max(vec4(color, spec), vec4(0));
+}
+
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